Wrote an article about #fuzzing the Linux kernel network stack externally with #syzkaller.
The article covers:
🧰 Introduction to syzkaller
💉 Using TUN/TAP for packet injection
👽 Integrating TUN/TAP via pseudo-syscalls
🏆 Showcases of found bugs
xairy.io/articles/syzka…
[CPR-Zero] CVE-2021-31179 (Outlook, Office): Improper parsing of TLV records leading to Use-After-Free and Heap Corruption in graph.exe cpr-zero.checkpoint.com/vulns/cprid-21…
[CPR-Zero] CVE-2021-31178 (Outlook, Office): Integer Underflow leading to Stack-based Out of Bound Read in graph.exe cpr-zero.checkpoint.com/vulns/cprid-21…
[CPR-Zero] CVE-2021-31174 (Outlook, Office): Stack-based Out of Bound Read in graph's data stream parsing code in graph.exe cpr-zero.checkpoint.com/vulns/cprid-21…
Woohoo! research.checkpoint.com/2021/fuzzing-t… "Another great feature of Jackalope is that it is easily customizable and hackable. The process of adding a custom mutator to the fuzzer was pretty straight-forward and increased our fuzzing effectiveness with very little development cost."
Our researchers found that CVE-2017-0005, a 0-Day attributed to the Chinese APT31, is a replica of an Equation Group 0-Day, that was caught and repurposed by APT31 during 2014, 3 years before the Shadow Brokers leak.
Read the complete story on our blog.
research.checkpoint.com/2021/the-story…
Gamers Beware
We recently turned our eyes to a major networking library used by a sizeable chunk of online gaming - Valve’s "Steam Sockets".
Here is our report on the library, and the vulnerabilities we found in it.
research.checkpoint.com/2020/game-on-f…
We discovered a 17-year-old vulnerability in all of Windows DNS Servers.
SIGRed (CVE-2020-1350) is a wormable, critical vulnerability that can be used to achieve full Domain Administrator privileges.
research.checkpoint.com/2020/resolving…