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RIPPLE20- REVERSE ENGINEERING ARCHEOLOGY Ripple20- Reverse Engineering Archeology. On September 8th, 2020, JSOF’s security researchers Shlomi Oberman, Moshe Kol and Ariel Schön presented the talk “Reverse Engineering Archeology: Multiple Devices, Multiple Versions” at the CONfidence 2020 infosec conference. CONFidence is an international infosecurity conference originated in 2005 in Poland.RIPPLE20 - JSOF
Ripple20 is a set of 19 vulnerabilities found on the Treck TCP/IP stack . Four of the Ripple20 vulnerabilities are rated critical, with CVSS scores over 9 and enable Remote Code Execution. One of the critical vulnerabilities is in the DNS protocol and may potentially be exploitable by a sophisticated attacker over the internet, from outside the network boundaries, even on devices that are not NAME:WRECK DNS VULNERABILITIES DISCLOSED BY JSOF AND NAME:WRECK DNS Vulnerabilities disclosed by JSOF and Forescout, Millions of Enterprise and Consumer Devices Impacted. JSOF, together with Forescout Research Labs, have disclosed a set of 9 vulnerabilities related to Domain Name System (DNS) implementations, causing either Denial of Service (DoS) or Remote Code Execution (RCE). This vulnerability set, known as NAME:WRECK, could UNPACKING HP FIRMWARE UPDATES This post is the first of a four-part blog series documenting the different structures and stages of the firmware update. The next parts of the series will be uploaded week by week as we write them. Part 1 – Just Print Me. Part 2 – S-Records parsing S-Records. Part 3DNSPOOQ - JSOF
The origin of the name DNSpooq is a merge of 3 elements: DNS spoofing, the idea of a spook spying on Internet traffic, and the ‘q’ at the end of dnsmasq, replacing the ‘k’ of spook with a ‘q’. The spy or spook graphic illustrates the effects of an effective DNS spoofing on the ability to spy on internet traffic. &9( ,QIR/HDN &9( 5&( Chapter 2 CVE-2020-11896 Overview CVE-2020-11896 is a critical vulnerability in Treck TCP/IP stack. It allows for Remote Code execution by any attacker that can RIPPLE20 FOLLOW-UP #1 Ripple20 follow-up #1: Continuing research, clarifications, and updates. It’s been a little more than 3 months since the Ripple20 disclosure, and we have been seeing many reactions of different types. A lot of vendor responses, with some good research expanding on our own, as well as some unfortunate fake news. RIPPLE20 FOLLOW-UP #2 Ripple20 follow-up #2: Reverse Engineering on Multiple Levels. Ripple20 disclosure has generated a lot of waves – pun intended! In the 4 months since we disclosed the Ripple20 set of vulnerabilities, we have seen a lot of feedback and discussion around the internet. Many people have asked about our reverse engineering process, which isthe
%/4QPPR EOTNBTR
In the past, the 16-bit TXID eld was the only defense against o -path attackers. In 2008, security research Dan Kaminsky showed that 16 bits of entropy is not enough to protect against cache poisoning JSOF- EXPLORING THE DEPTHS OF SECURITY JSOF is a team of experienced cyber security professionals, with a wide and deep understanding of software, technology, and security. Located in Israel with offices on the campus of the Hebrew University, we draw our talent from the best and the brightest new minds, andmaintain a
RIPPLE20- REVERSE ENGINEERING ARCHEOLOGY Ripple20- Reverse Engineering Archeology. On September 8th, 2020, JSOF’s security researchers Shlomi Oberman, Moshe Kol and Ariel Schön presented the talk “Reverse Engineering Archeology: Multiple Devices, Multiple Versions” at the CONfidence 2020 infosec conference. CONFidence is an international infosecurity conference originated in 2005 in Poland.RIPPLE20 - JSOF
Ripple20 is a set of 19 vulnerabilities found on the Treck TCP/IP stack . Four of the Ripple20 vulnerabilities are rated critical, with CVSS scores over 9 and enable Remote Code Execution. One of the critical vulnerabilities is in the DNS protocol and may potentially be exploitable by a sophisticated attacker over the internet, from outside the network boundaries, even on devices that are not NAME:WRECK DNS VULNERABILITIES DISCLOSED BY JSOF AND NAME:WRECK DNS Vulnerabilities disclosed by JSOF and Forescout, Millions of Enterprise and Consumer Devices Impacted. JSOF, together with Forescout Research Labs, have disclosed a set of 9 vulnerabilities related to Domain Name System (DNS) implementations, causing either Denial of Service (DoS) or Remote Code Execution (RCE). This vulnerability set, known as NAME:WRECK, could UNPACKING HP FIRMWARE UPDATES This post is the first of a four-part blog series documenting the different structures and stages of the firmware update. The next parts of the series will be uploaded week by week as we write them. Part 1 – Just Print Me. Part 2 – S-Records parsing S-Records. Part 3DNSPOOQ - JSOF
The origin of the name DNSpooq is a merge of 3 elements: DNS spoofing, the idea of a spook spying on Internet traffic, and the ‘q’ at the end of dnsmasq, replacing the ‘k’ of spook with a ‘q’. The spy or spook graphic illustrates the effects of an effective DNS spoofing on the ability to spy on internet traffic. &9( ,QIR/HDN &9( 5&( Chapter 2 CVE-2020-11896 Overview CVE-2020-11896 is a critical vulnerability in Treck TCP/IP stack. It allows for Remote Code execution by any attacker that can RIPPLE20 FOLLOW-UP #1 Ripple20 follow-up #1: Continuing research, clarifications, and updates. It’s been a little more than 3 months since the Ripple20 disclosure, and we have been seeing many reactions of different types. A lot of vendor responses, with some good research expanding on our own, as well as some unfortunate fake news. RIPPLE20 FOLLOW-UP #2 Ripple20 follow-up #2: Reverse Engineering on Multiple Levels. Ripple20 disclosure has generated a lot of waves – pun intended! In the 4 months since we disclosed the Ripple20 set of vulnerabilities, we have seen a lot of feedback and discussion around the internet. Many people have asked about our reverse engineering process, which isthe
%/4QPPR EOTNBTR
In the past, the 16-bit TXID eld was the only defense against o -path attackers. In 2008, security research Dan Kaminsky showed that 16 bits of entropy is not enough to protect against cache poisoningTRAINING - JSOF
Training JSOF is a research-oriented company, with years of accumulated knowledge, experience, and skills. Teaching, researching, and getting people to thinkBLOG - JSOF
Blog Teaching, researching, and getting people to think and solve challenges, is in our DNA. In addition, our offices are located in the Hebrew University of Jerusalem campus. RIPPLE20 FOLLOW-UP #1 Ripple20 follow-up #1: Continuing research, clarifications, and updates. It’s been a little more than 3 months since the Ripple20 disclosure, and we have been seeing many reactions of different types. A lot of vendor responses, with some good research expanding on our own, as well as some unfortunate fake news.DISCLOSURES
Disclosures DNSpooq January 19, 2021 7 Vulnerabilities Found in dnsmasq Threaten DNS Integrity (again) Read the full report Ripple20June 16, 2020 19
RIPPLE20 FOLLOW-UP #2 Ripple20 follow-up #2: Reverse Engineering on Multiple Levels. Ripple20 disclosure has generated a lot of waves – pun intended! In the 4 months since we disclosed the Ripple20 set of vulnerabilities, we have seen a lot of feedback and discussion around the internet. Many people have asked about our reverse engineering process, which isthe
UNPACKING HP FIRMWARE UPDATES Part 4 — Memory map leads us to our destination. Andrey Zagrebin, Moshe Kol, Shlomi Oberman. This post is the forth and final of a four-part blog series documenting the different structures and stages of the firmware update. Part 1 – Just Print Me. Part 2 – S-Records parsing S-Records. Part 3 – From NAND to RAM through slidingwindows.
THE RETURN OF INFORMATION ANARCHY The Return of Information Anarchy. We have been seeing a great deal of interest and independent research into Ripple20. The affected vendors themselves, of course, have been confirming the vulnerabilities and issuing fixes and advisories. We have also seen other security companies analyzing the vulnerabilities, finding more vulnerabledevices
UNPACKING HP FIRMWARE UPDATES This post is the third of a four-part blog series documenting the different structures and stages of the firmware update. The next parts of the series will be uploaded week by week as we write them. Part 1 – Just Print Me. Part 2 – S-Records parsing S-Records. Part 3 WE’RE GOING FULL DISCLOSURE (WELL, SORT OF) We’re going Full Disclosure (well, sort of) We recently looked into the firmware of the “APC by Schneider Electric Smart-UPS NMC” that were officially documented as having already been fixed for the Ripple20 vulnerabilities and found that one of the vulnerabilities had not been patched. We do not mean that the fix was bad, but rather that JSOF- EXPLORING THE DEPTHS OF SECURITY Author: S H Created Date: 8/15/2019 12:10:30 PM JSOF- EXPLORING THE DEPTHS OF SECURITY JSOF is a team of experienced cyber security professionals, with a wide and deep understanding of software, technology, and security. Located in Israel with offices on the campus of the Hebrew University, we draw our talent from the best and the brightest new minds, andmaintain a
RIPPLE20- REVERSE ENGINEERING ARCHEOLOGY Ripple20- Reverse Engineering Archeology. On September 8th, 2020, JSOF’s security researchers Shlomi Oberman, Moshe Kol and Ariel Schön presented the talk “Reverse Engineering Archeology: Multiple Devices, Multiple Versions” at the CONfidence 2020 infosec conference. CONFidence is an international infosecurity conference originated in 2005 in Poland.RIPPLE20 - JSOF
Ripple20 is a set of 19 vulnerabilities found on the Treck TCP/IP stack . Four of the Ripple20 vulnerabilities are rated critical, with CVSS scores over 9 and enable Remote Code Execution. One of the critical vulnerabilities is in the DNS protocol and may potentially be exploitable by a sophisticated attacker over the internet, from outside the network boundaries, even on devices that are notDNSPOOQ - JSOF
The origin of the name DNSpooq is a merge of 3 elements: DNS spoofing, the idea of a spook spying on Internet traffic, and the ‘q’ at the end of dnsmasq, replacing the ‘k’ of spook with a ‘q’. The spy or spook graphic illustrates the effects of an effective DNS spoofing on the ability to spy on internet traffic. NAME:WRECK DNS VULNERABILITIES DISCLOSED BY JSOF AND NAME:WRECK DNS Vulnerabilities disclosed by JSOF and Forescout, Millions of Enterprise and Consumer Devices Impacted. JSOF, together with Forescout Research Labs, have disclosed a set of 9 vulnerabilities related to Domain Name System (DNS) implementations, causing either Denial of Service (DoS) or Remote Code Execution (RCE). This vulnerability set, known as NAME:WRECK, could UNPACKING HP FIRMWARE UPDATES This post is the first of a four-part blog series documenting the different structures and stages of the firmware update. The next parts of the series will be uploaded week by week as we write them. Part 1 – Just Print Me. Part 2 – S-Records parsing S-Records. Part 3 &9( ,QIR/HDN &9( 5&( Chapter 2 CVE-2020-11896 Overview CVE-2020-11896 is a critical vulnerability in Treck TCP/IP stack. It allows for Remote Code execution by any attacker that can UNPACKING HP FIRMWARE UPDATES Part 1 – Just Print Me. Part 2 – S-Records parsing S-Records. Part 3 – From NAND to RAM through sliding windows. Part 4 – memory map leads us to our destination. In the previous post we detailed how to unpack HP firmware raster graphics and extract its encoded data. A second layer of encoded data should be visible at this point. UNPACKING HP FIRMWARE UPDATES Part 4 — Memory map leads us to our destination. Andrey Zagrebin, Moshe Kol, Shlomi Oberman. This post is the forth and final of a four-part blog series documenting the different structures and stages of the firmware update. Part 1 – Just Print Me. Part 2 – S-Records parsing S-Records. Part 3 – From NAND to RAM through slidingwindows.
%/4QPPR EOTNBTR
In the past, the 16-bit TXID eld was the only defense against o -path attackers. In 2008, security research Dan Kaminsky showed that 16 bits of entropy is not enough to protect against cache poisoning JSOF- EXPLORING THE DEPTHS OF SECURITY JSOF is a team of experienced cyber security professionals, with a wide and deep understanding of software, technology, and security. Located in Israel with offices on the campus of the Hebrew University, we draw our talent from the best and the brightest new minds, andmaintain a
RIPPLE20- REVERSE ENGINEERING ARCHEOLOGY Ripple20- Reverse Engineering Archeology. On September 8th, 2020, JSOF’s security researchers Shlomi Oberman, Moshe Kol and Ariel Schön presented the talk “Reverse Engineering Archeology: Multiple Devices, Multiple Versions” at the CONfidence 2020 infosec conference. CONFidence is an international infosecurity conference originated in 2005 in Poland.RIPPLE20 - JSOF
Ripple20 is a set of 19 vulnerabilities found on the Treck TCP/IP stack . Four of the Ripple20 vulnerabilities are rated critical, with CVSS scores over 9 and enable Remote Code Execution. One of the critical vulnerabilities is in the DNS protocol and may potentially be exploitable by a sophisticated attacker over the internet, from outside the network boundaries, even on devices that are notDNSPOOQ - JSOF
The origin of the name DNSpooq is a merge of 3 elements: DNS spoofing, the idea of a spook spying on Internet traffic, and the ‘q’ at the end of dnsmasq, replacing the ‘k’ of spook with a ‘q’. The spy or spook graphic illustrates the effects of an effective DNS spoofing on the ability to spy on internet traffic. NAME:WRECK DNS VULNERABILITIES DISCLOSED BY JSOF AND NAME:WRECK DNS Vulnerabilities disclosed by JSOF and Forescout, Millions of Enterprise and Consumer Devices Impacted. JSOF, together with Forescout Research Labs, have disclosed a set of 9 vulnerabilities related to Domain Name System (DNS) implementations, causing either Denial of Service (DoS) or Remote Code Execution (RCE). This vulnerability set, known as NAME:WRECK, could UNPACKING HP FIRMWARE UPDATES This post is the first of a four-part blog series documenting the different structures and stages of the firmware update. The next parts of the series will be uploaded week by week as we write them. Part 1 – Just Print Me. Part 2 – S-Records parsing S-Records. Part 3 &9( ,QIR/HDN &9( 5&( Chapter 2 CVE-2020-11896 Overview CVE-2020-11896 is a critical vulnerability in Treck TCP/IP stack. It allows for Remote Code execution by any attacker that can UNPACKING HP FIRMWARE UPDATES Part 1 – Just Print Me. Part 2 – S-Records parsing S-Records. Part 3 – From NAND to RAM through sliding windows. Part 4 – memory map leads us to our destination. In the previous post we detailed how to unpack HP firmware raster graphics and extract its encoded data. A second layer of encoded data should be visible at this point. UNPACKING HP FIRMWARE UPDATES Part 4 — Memory map leads us to our destination. Andrey Zagrebin, Moshe Kol, Shlomi Oberman. This post is the forth and final of a four-part blog series documenting the different structures and stages of the firmware update. Part 1 – Just Print Me. Part 2 – S-Records parsing S-Records. Part 3 – From NAND to RAM through slidingwindows.
%/4QPPR EOTNBTR
In the past, the 16-bit TXID eld was the only defense against o -path attackers. In 2008, security research Dan Kaminsky showed that 16 bits of entropy is not enough to protect against cache poisoningBLOG - JSOF
Blog. Teaching, researching, and getting people to think and solve challenges, is in our DNA. In addition, our offices are located in the Hebrew University of Jerusalem campus. 12/04/2021.TRAINING - JSOF
Training JSOF is a research-oriented company, with years of accumulated knowledge, experience, and skills. Teaching, researching, and getting people to thinkDISCLOSURES
Disclosures DNSpooq January 19, 2021 7 Vulnerabilities Found in dnsmasq Threaten DNS Integrity (again) Read the full report Ripple20June 16, 2020 19
RIPPLE20 FOLLOW-UP #1 Ripple20 follow-up #1: Continuing research, clarifications, and updates. It’s been a little more than 3 months since the Ripple20 disclosure, and we have been seeing many reactions of different types. A lot of vendor responses, with some good research expanding on our own, as well as some unfortunate fake news. RIPPLE20 FOLLOW-UP #2 Ripple20 follow-up #2: Reverse Engineering on Multiple Levels. Ripple20 disclosure has generated a lot of waves – pun intended! In the 4 months since we disclosed the Ripple20 set of vulnerabilities, we have seen a lot of feedback and discussion around the internet. Many people have asked about our reverse engineering process, which isthe
UNPACKING HP FIRMWARE UPDATES Part 4 — Memory map leads us to our destination. Andrey Zagrebin, Moshe Kol, Shlomi Oberman. This post is the forth and final of a four-part blog series documenting the different structures and stages of the firmware update. Part 1 – Just Print Me. Part 2 – S-Records parsing S-Records. Part 3 – From NAND to RAM through slidingwindows.
THE RETURN OF INFORMATION ANARCHY The Return of Information Anarchy. We have been seeing a great deal of interest and independent research into Ripple20. The affected vendors themselves, of course, have been confirming the vulnerabilities and issuing fixes and advisories. We have also seen other security companies analyzing the vulnerabilities, finding more vulnerabledevices
UNPACKING HP FIRMWARE UPDATES This post is the third of a four-part blog series documenting the different structures and stages of the firmware update. The next parts of the series will be uploaded week by week as we write them. Part 1 – Just Print Me. Part 2 – S-Records parsing S-Records. Part 3 WE’RE GOING FULL DISCLOSURE (WELL, SORT OF) We’re going Full Disclosure (well, sort of) We recently looked into the firmware of the “APC by Schneider Electric Smart-UPS NMC” that were officially documented as having already been fixed for the Ripple20 vulnerabilities and found that one of the vulnerabilities had not been patched. We do not mean that the fix was bad, but rather that REVERSE ENGINEERING ARCHEOLOGY: REVERSE ENGINEERING All rights reserved to JSOF Ltd. Ripple20 6 CVE-2020-11896 CVE-2020-11897 CVE-2020-11898 CVE-2020-11899 CVE-2020-11900 CVE-2020-11901 CVE-2020-11902 JSOF- EXPLORING THE DEPTHS OF SECURITY JSOF is a team of experienced cyber security professionals, with a wide and deep understanding of software, technology, and security. Located in Israel with offices on the campus of the Hebrew University, we draw our talent from the best and the brightest new minds, andmaintain a
RIPPLE20- REVERSE ENGINEERING ARCHEOLOGY Ripple20- Reverse Engineering Archeology. On September 8th, 2020, JSOF’s security researchers Shlomi Oberman, Moshe Kol and Ariel Schön presented the talk “Reverse Engineering Archeology: Multiple Devices, Multiple Versions” at the CONfidence 2020 infosec conference. CONFidence is an international infosecurity conference originated in 2005 in Poland.RIPPLE20 - JSOF
Ripple20 is a set of 19 vulnerabilities found on the Treck TCP/IP stack . Four of the Ripple20 vulnerabilities are rated critical, with CVSS scores over 9 and enable Remote Code Execution. One of the critical vulnerabilities is in the DNS protocol and may potentially be exploitable by a sophisticated attacker over the internet, from outside the network boundaries, even on devices that are notDNSPOOQ - JSOF
The origin of the name DNSpooq is a merge of 3 elements: DNS spoofing, the idea of a spook spying on Internet traffic, and the ‘q’ at the end of dnsmasq, replacing the ‘k’ of spook with a ‘q’. The spy or spook graphic illustrates the effects of an effective DNS spoofing on the ability to spy on internet traffic. NAME:WRECK DNS VULNERABILITIES DISCLOSED BY JSOF AND NAME:WRECK DNS Vulnerabilities disclosed by JSOF and Forescout, Millions of Enterprise and Consumer Devices Impacted. JSOF, together with Forescout Research Labs, have disclosed a set of 9 vulnerabilities related to Domain Name System (DNS) implementations, causing either Denial of Service (DoS) or Remote Code Execution (RCE). This vulnerability set, known as NAME:WRECK, could UNPACKING HP FIRMWARE UPDATES This post is the first of a four-part blog series documenting the different structures and stages of the firmware update. The next parts of the series will be uploaded week by week as we write them. Part 1 – Just Print Me. Part 2 – S-Records parsing S-Records. Part 3 &9( ,QIR/HDN &9( 5&( Chapter 2 CVE-2020-11896 Overview CVE-2020-11896 is a critical vulnerability in Treck TCP/IP stack. It allows for Remote Code execution by any attacker that can UNPACKING HP FIRMWARE UPDATES Part 1 – Just Print Me. Part 2 – S-Records parsing S-Records. Part 3 – From NAND to RAM through sliding windows. Part 4 – memory map leads us to our destination. In the previous post we detailed how to unpack HP firmware raster graphics and extract its encoded data. A second layer of encoded data should be visible at this point. UNPACKING HP FIRMWARE UPDATES Part 4 — Memory map leads us to our destination. Andrey Zagrebin, Moshe Kol, Shlomi Oberman. This post is the forth and final of a four-part blog series documenting the different structures and stages of the firmware update. Part 1 – Just Print Me. Part 2 – S-Records parsing S-Records. Part 3 – From NAND to RAM through slidingwindows.
%/4QPPR EOTNBTR
In the past, the 16-bit TXID eld was the only defense against o -path attackers. In 2008, security research Dan Kaminsky showed that 16 bits of entropy is not enough to protect against cache poisoning JSOF- EXPLORING THE DEPTHS OF SECURITY JSOF is a team of experienced cyber security professionals, with a wide and deep understanding of software, technology, and security. Located in Israel with offices on the campus of the Hebrew University, we draw our talent from the best and the brightest new minds, andmaintain a
RIPPLE20- REVERSE ENGINEERING ARCHEOLOGY Ripple20- Reverse Engineering Archeology. On September 8th, 2020, JSOF’s security researchers Shlomi Oberman, Moshe Kol and Ariel Schön presented the talk “Reverse Engineering Archeology: Multiple Devices, Multiple Versions” at the CONfidence 2020 infosec conference. CONFidence is an international infosecurity conference originated in 2005 in Poland.RIPPLE20 - JSOF
Ripple20 is a set of 19 vulnerabilities found on the Treck TCP/IP stack . Four of the Ripple20 vulnerabilities are rated critical, with CVSS scores over 9 and enable Remote Code Execution. One of the critical vulnerabilities is in the DNS protocol and may potentially be exploitable by a sophisticated attacker over the internet, from outside the network boundaries, even on devices that are notDNSPOOQ - JSOF
The origin of the name DNSpooq is a merge of 3 elements: DNS spoofing, the idea of a spook spying on Internet traffic, and the ‘q’ at the end of dnsmasq, replacing the ‘k’ of spook with a ‘q’. The spy or spook graphic illustrates the effects of an effective DNS spoofing on the ability to spy on internet traffic. NAME:WRECK DNS VULNERABILITIES DISCLOSED BY JSOF AND NAME:WRECK DNS Vulnerabilities disclosed by JSOF and Forescout, Millions of Enterprise and Consumer Devices Impacted. JSOF, together with Forescout Research Labs, have disclosed a set of 9 vulnerabilities related to Domain Name System (DNS) implementations, causing either Denial of Service (DoS) or Remote Code Execution (RCE). This vulnerability set, known as NAME:WRECK, could UNPACKING HP FIRMWARE UPDATES This post is the first of a four-part blog series documenting the different structures and stages of the firmware update. The next parts of the series will be uploaded week by week as we write them. Part 1 – Just Print Me. Part 2 – S-Records parsing S-Records. Part 3 &9( ,QIR/HDN &9( 5&( Chapter 2 CVE-2020-11896 Overview CVE-2020-11896 is a critical vulnerability in Treck TCP/IP stack. It allows for Remote Code execution by any attacker that can UNPACKING HP FIRMWARE UPDATES Part 1 – Just Print Me. Part 2 – S-Records parsing S-Records. Part 3 – From NAND to RAM through sliding windows. Part 4 – memory map leads us to our destination. In the previous post we detailed how to unpack HP firmware raster graphics and extract its encoded data. A second layer of encoded data should be visible at this point. UNPACKING HP FIRMWARE UPDATES Part 4 — Memory map leads us to our destination. Andrey Zagrebin, Moshe Kol, Shlomi Oberman. This post is the forth and final of a four-part blog series documenting the different structures and stages of the firmware update. Part 1 – Just Print Me. Part 2 – S-Records parsing S-Records. Part 3 – From NAND to RAM through slidingwindows.
%/4QPPR EOTNBTR
In the past, the 16-bit TXID eld was the only defense against o -path attackers. In 2008, security research Dan Kaminsky showed that 16 bits of entropy is not enough to protect against cache poisoningBLOG - JSOF
Blog. Teaching, researching, and getting people to think and solve challenges, is in our DNA. In addition, our offices are located in the Hebrew University of Jerusalem campus. 12/04/2021.TRAINING - JSOF
Training JSOF is a research-oriented company, with years of accumulated knowledge, experience, and skills. Teaching, researching, and getting people to thinkDISCLOSURES
Disclosures DNSpooq January 19, 2021 7 Vulnerabilities Found in dnsmasq Threaten DNS Integrity (again) Read the full report Ripple20June 16, 2020 19
RIPPLE20 FOLLOW-UP #1 Ripple20 follow-up #1: Continuing research, clarifications, and updates. It’s been a little more than 3 months since the Ripple20 disclosure, and we have been seeing many reactions of different types. A lot of vendor responses, with some good research expanding on our own, as well as some unfortunate fake news. RIPPLE20 FOLLOW-UP #2 Ripple20 follow-up #2: Reverse Engineering on Multiple Levels. Ripple20 disclosure has generated a lot of waves – pun intended! In the 4 months since we disclosed the Ripple20 set of vulnerabilities, we have seen a lot of feedback and discussion around the internet. Many people have asked about our reverse engineering process, which isthe
UNPACKING HP FIRMWARE UPDATES Part 4 — Memory map leads us to our destination. Andrey Zagrebin, Moshe Kol, Shlomi Oberman. This post is the forth and final of a four-part blog series documenting the different structures and stages of the firmware update. Part 1 – Just Print Me. Part 2 – S-Records parsing S-Records. Part 3 – From NAND to RAM through slidingwindows.
THE RETURN OF INFORMATION ANARCHY The Return of Information Anarchy. We have been seeing a great deal of interest and independent research into Ripple20. The affected vendors themselves, of course, have been confirming the vulnerabilities and issuing fixes and advisories. We have also seen other security companies analyzing the vulnerabilities, finding more vulnerabledevices
UNPACKING HP FIRMWARE UPDATES This post is the third of a four-part blog series documenting the different structures and stages of the firmware update. The next parts of the series will be uploaded week by week as we write them. Part 1 – Just Print Me. Part 2 – S-Records parsing S-Records. Part 3 WE’RE GOING FULL DISCLOSURE (WELL, SORT OF) We’re going Full Disclosure (well, sort of) We recently looked into the firmware of the “APC by Schneider Electric Smart-UPS NMC” that were officially documented as having already been fixed for the Ripple20 vulnerabilities and found that one of the vulnerabilities had not been patched. We do not mean that the fix was bad, but rather that REVERSE ENGINEERING ARCHEOLOGY: REVERSE ENGINEERING All rights reserved to JSOF Ltd. Ripple20 6 CVE-2020-11896 CVE-2020-11897 CVE-2020-11898 CVE-2020-11899 CVE-2020-11900 CVE-2020-11901 CVE-2020-11902 JSOF- EXPLORING THE DEPTHS OF SECURITY JSOF is a team of experienced cyber security professionals, with a wide and deep understanding of software, technology, and security. Located in Israel with offices on the campus of the Hebrew University, we draw our talent from the best and the brightest new minds, andmaintain a
TRAINING - JSOF
Training JSOF is a research-oriented company, with years of accumulated knowledge, experience, and skills. Teaching, researching, and getting people to think RIPPLE20- REVERSE ENGINEERING ARCHEOLOGY Ripple20- Reverse Engineering Archeology. On September 8th, 2020, JSOF’s security researchers Shlomi Oberman, Moshe Kol and Ariel Schön presented the talk “Reverse Engineering Archeology: Multiple Devices, Multiple Versions” at the CONfidence 2020 infosec conference. CONFidence is an international infosecurity conference originated in 2005 in Poland.RIPPLE20 - JSOF
Ripple20 is a set of 19 vulnerabilities found on the Treck TCP/IP stack . Four of the Ripple20 vulnerabilities are rated critical, with CVSS scores over 9 and enable Remote Code Execution. One of the critical vulnerabilities is in the DNS protocol and may potentially be exploitable by a sophisticated attacker over the internet, from outside the network boundaries, even on devices that are not UNPACKING HP FIRMWARE UPDATES This post is the first of a four-part blog series documenting the different structures and stages of the firmware update. The next parts of the series will be uploaded week by week as we write them. Part 1 – Just Print Me. Part 2 – S-Records parsing S-Records. Part 3 NAME:WRECK DNS VULNERABILITIES DISCLOSED BY JSOF AND NAME:WRECK DNS Vulnerabilities disclosed by JSOF and Forescout, Millions of Enterprise and Consumer Devices Impacted. JSOF, together with Forescout Research Labs, have disclosed a set of 9 vulnerabilities related to Domain Name System (DNS) implementations, causing either Denial of Service (DoS) or Remote Code Execution (RCE). This vulnerability set, known as NAME:WRECK, could DNSPOOQ - JSOFWHAT IS DNS ADDRESS The origin of the name DNSpooq is a merge of 3 elements: DNS spoofing, the idea of a spook spying on Internet traffic, and the ‘q’ at the end of dnsmasq, replacing the ‘k’ of spook with a ‘q’. The spy or spook graphic illustrates the effects of an effective DNS spoofing on the ability to spy on internet traffic. UNPACKING HP FIRMWARE UPDATES Part 1 – Just Print Me. Part 2 – S-Records parsing S-Records. Part 3 – From NAND to RAM through sliding windows. Part 4 – memory map leads us to our destination. In the previous post we detailed how to unpack HP firmware raster graphics and extract its encoded data. A second layer of encoded data should be visible at this point. UNPACKING HP FIRMWARE UPDATES Part 4 — Memory map leads us to our destination. Andrey Zagrebin, Moshe Kol, Shlomi Oberman. This post is the forth and final of a four-part blog series documenting the different structures and stages of the firmware update. Part 1 – Just Print Me. Part 2 – S-Records parsing S-Records. Part 3 – From NAND to RAM through slidingwindows.
%/4QPPR EOTNBTR
In the past, the 16-bit TXID eld was the only defense against o -path attackers. In 2008, security research Dan Kaminsky showed that 16 bits of entropy is not enough to protect against cache poisoning JSOF- EXPLORING THE DEPTHS OF SECURITY JSOF is a team of experienced cyber security professionals, with a wide and deep understanding of software, technology, and security. Located in Israel with offices on the campus of the Hebrew University, we draw our talent from the best and the brightest new minds, andmaintain a
TRAINING - JSOF
Training JSOF is a research-oriented company, with years of accumulated knowledge, experience, and skills. Teaching, researching, and getting people to think RIPPLE20- REVERSE ENGINEERING ARCHEOLOGY Ripple20- Reverse Engineering Archeology. On September 8th, 2020, JSOF’s security researchers Shlomi Oberman, Moshe Kol and Ariel Schön presented the talk “Reverse Engineering Archeology: Multiple Devices, Multiple Versions” at the CONfidence 2020 infosec conference. CONFidence is an international infosecurity conference originated in 2005 in Poland.RIPPLE20 - JSOF
Ripple20 is a set of 19 vulnerabilities found on the Treck TCP/IP stack . Four of the Ripple20 vulnerabilities are rated critical, with CVSS scores over 9 and enable Remote Code Execution. One of the critical vulnerabilities is in the DNS protocol and may potentially be exploitable by a sophisticated attacker over the internet, from outside the network boundaries, even on devices that are not UNPACKING HP FIRMWARE UPDATES This post is the first of a four-part blog series documenting the different structures and stages of the firmware update. The next parts of the series will be uploaded week by week as we write them. Part 1 – Just Print Me. Part 2 – S-Records parsing S-Records. Part 3 NAME:WRECK DNS VULNERABILITIES DISCLOSED BY JSOF AND NAME:WRECK DNS Vulnerabilities disclosed by JSOF and Forescout, Millions of Enterprise and Consumer Devices Impacted. JSOF, together with Forescout Research Labs, have disclosed a set of 9 vulnerabilities related to Domain Name System (DNS) implementations, causing either Denial of Service (DoS) or Remote Code Execution (RCE). This vulnerability set, known as NAME:WRECK, could DNSPOOQ - JSOFWHAT IS DNS ADDRESS The origin of the name DNSpooq is a merge of 3 elements: DNS spoofing, the idea of a spook spying on Internet traffic, and the ‘q’ at the end of dnsmasq, replacing the ‘k’ of spook with a ‘q’. The spy or spook graphic illustrates the effects of an effective DNS spoofing on the ability to spy on internet traffic. UNPACKING HP FIRMWARE UPDATES Part 1 – Just Print Me. Part 2 – S-Records parsing S-Records. Part 3 – From NAND to RAM through sliding windows. Part 4 – memory map leads us to our destination. In the previous post we detailed how to unpack HP firmware raster graphics and extract its encoded data. A second layer of encoded data should be visible at this point. UNPACKING HP FIRMWARE UPDATES Part 4 — Memory map leads us to our destination. Andrey Zagrebin, Moshe Kol, Shlomi Oberman. This post is the forth and final of a four-part blog series documenting the different structures and stages of the firmware update. Part 1 – Just Print Me. Part 2 – S-Records parsing S-Records. Part 3 – From NAND to RAM through slidingwindows.
%/4QPPR EOTNBTR
In the past, the 16-bit TXID eld was the only defense against o -path attackers. In 2008, security research Dan Kaminsky showed that 16 bits of entropy is not enough to protect against cache poisoningDISCLOSURES
Disclosures DNSpooq January 19, 2021 7 Vulnerabilities Found in dnsmasq Threaten DNS Integrity (again) Read the full report Ripple20June 16, 2020 19
RIPPLE20 FOLLOW-UP #1 Ripple20 follow-up #1: Continuing research, clarifications, and updates. It’s been a little more than 3 months since the Ripple20 disclosure, and we have been seeing many reactions of different types. A lot of vendor responses, with some good research expanding on our own, as well as some unfortunate fake news. &9( ,QIR/HDN &9( 5&( Chapter 2 CVE-2020-11896 Overview CVE-2020-11896 is a critical vulnerability in Treck TCP/IP stack. It allows for Remote Code execution by any attacker that can UNPACKING HP FIRMWARE UPDATES Part 4 — Memory map leads us to our destination. Andrey Zagrebin, Moshe Kol, Shlomi Oberman. This post is the forth and final of a four-part blog series documenting the different structures and stages of the firmware update. Part 1 – Just Print Me. Part 2 – S-Records parsing S-Records. Part 3 – From NAND to RAM through slidingwindows.
THE RETURN OF INFORMATION ANARCHY The Return of Information Anarchy. We have been seeing a great deal of interest and independent research into Ripple20. The affected vendors themselves, of course, have been confirming the vulnerabilities and issuing fixes and advisories. We have also seen other security companies analyzing the vulnerabilities, finding more vulnerabledevices
UNPACKING HP FIRMWARE UPDATES This post is the third of a four-part blog series documenting the different structures and stages of the firmware update. The next parts of the series will be uploaded week by week as we write them. Part 1 – Just Print Me. Part 2 – S-Records parsing S-Records. Part 3%/4QPPR EOTNBTR
In the past, the 16-bit TXID eld was the only defense against o -path attackers. In 2008, security research Dan Kaminsky showed that 16 bits of entropy is not enough to protect against cache poisoning RIPPLE20 FOLLOW-UP #2 Ripple20 follow-up #2: Reverse Engineering on Multiple Levels. Ripple20 disclosure has generated a lot of waves – pun intended! In the 4 months since we disclosed the Ripple20 set of vulnerabilities, we have seen a lot of feedback and discussion around the internet. Many people have asked about our reverse engineering process, which isthe
WE’RE GOING FULL DISCLOSURE (WELL, SORT OF) We’re going Full Disclosure (well, sort of) We recently looked into the firmware of the “APC by Schneider Electric Smart-UPS NMC” that were officially documented as having already been fixed for the Ripple20 vulnerabilities and found that one of the vulnerabilities had not been patched. We do not mean that the fix was bad, but rather that JSOF- EXPLORING THE DEPTHS OF SECURITY Author: S H Created Date: 8/15/2019 12:10:30 PMSkip to content
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