Found 87 bookmarks
Custom sorting
Put an io_uring on it: Exploiting the Linux Kernel - Blog |
Put an io_uring on it: Exploiting the Linux Kernel - Blog |
At Grapl we believe that in order to build the best defensive system we need to deeply understand attacker behaviors. As part of that goal we're investing in offensive security research. Keep up with our blog for new research on high risk vulnerabilities, exploitation, and advanced threat tactics.
·graplsecurity.com·
Put an io_uring on it: Exploiting the Linux Kernel - Blog |
Analyzing a watering hole campaign using macOS exploits
Analyzing a watering hole campaign using macOS exploits
To protect our users, TAG routinely hunts for 0-day vulnerabilities exploited in-the-wild. In late August 2021, TAG discovered watering hole attacks targeting visitors to Hong Kong websites for a media outlet and a prominent pro-democracy labor and political group. The watering hole served an XNU privilege escalation vulnerability (CVE-2021-30869) unpatched in macOS Catalina, which led to the installation of a previously unreported backdoor.
·blog.google·
Analyzing a watering hole campaign using macOS exploits
Patch Tuesday - Exploit Wednesday: Pwning Windows Ancillary Function Driver for WinSock (afd.sys) in 24 Hours
Patch Tuesday - Exploit Wednesday: Pwning Windows Ancillary Function Driver for WinSock (afd.sys) in 24 Hours
Dive into the analysis and exploitation of a vulnerability in the Windows Ancillary Function Driver for Winsock for Local Privilege Escalation on Windows 11. More from X-Force Red experts.
·securityintelligence.com·
Patch Tuesday - Exploit Wednesday: Pwning Windows Ancillary Function Driver for WinSock (afd.sys) in 24 Hours
Linux Kernel Exploit (CVE-2022-32250) with mqueue
Linux Kernel Exploit (CVE-2022-32250) with mqueue
Netfilter is a framework in the Linux kernel for implementing various networking-related tasks with user-defined handlers. Netfilter provides various functions for packet filtering, network address translation and port translation, and packet logging. Netfilter represents a set of hooks that allow other kernel modules to register callback functions in the kernel’s networking stack.
·blog.theori.io·
Linux Kernel Exploit (CVE-2022-32250) with mqueue
Put an io_uring on it: Exploiting the Linux Kernel - Blog |
Put an io_uring on it: Exploiting the Linux Kernel - Blog |
At Grapl we believe that in order to build the best defensive system we need to deeply understand attacker behaviors. As part of that goal we're investing in offensive security research. Keep up with our blog for new research on high risk vulnerabilities, exploitation, and advanced threat tactics.
·graplsecurity.com·
Put an io_uring on it: Exploiting the Linux Kernel - Blog |
BRANCH HISTORY INJECTION
BRANCH HISTORY INJECTION
On the Effectiveness of Hardware Mitigations Against Cross-Privilege Spectre-v2 Attacks BHI (or Spectre-BHB) is a revival of cross-privilege Spectre-v2 attacks on modern systems deploying in-hardware defenses. And we have a very neat end-to-end exploit leaking arbitrary kernel memory on modern Intel CPUs to prove it (PoC||GTFO right?).
·vusec.net·
BRANCH HISTORY INJECTION
Analyzing a watering hole campaign using macOS exploits
Analyzing a watering hole campaign using macOS exploits
To protect our users, TAG routinely hunts for 0-day vulnerabilities exploited in-the-wild. In late August 2021, TAG discovered watering hole attacks targeting visitors to Hong Kong websites for a media outlet and a prominent pro-democracy labor and political group. The watering hole served an XNU privilege escalation vulnerability (CVE-2021-30869) unpatched in macOS Catalina, which led to the installation of a previously unreported backdoor.
·blog.google·
Analyzing a watering hole campaign using macOS exploits
Linux Kernel Exploit (CVE-2022-32250) with mqueue
Linux Kernel Exploit (CVE-2022-32250) with mqueue
Netfilter is a framework in the Linux kernel for implementing various networking-related tasks with user-defined handlers. Netfilter provides various functions for packet filtering, network address translation and port translation, and packet logging. Netfilter represents a set of hooks that allow other kernel modules to register callback functions in the kernel’s networking stack.
·blog.theori.io·
Linux Kernel Exploit (CVE-2022-32250) with mqueue
Put an io_uring on it: Exploiting the Linux Kernel - Blog |
Put an io_uring on it: Exploiting the Linux Kernel - Blog |
At Grapl we believe that in order to build the best defensive system we need to deeply understand attacker behaviors. As part of that goal we're investing in offensive security research. Keep up with our blog for new research on high risk vulnerabilities, exploitation, and advanced threat tactics.
·graplsecurity.com·
Put an io_uring on it: Exploiting the Linux Kernel - Blog |
BRANCH HISTORY INJECTION
BRANCH HISTORY INJECTION
On the Effectiveness of Hardware Mitigations Against Cross-Privilege Spectre-v2 Attacks BHI (or Spectre-BHB) is a revival of cross-privilege Spectre-v2 attacks on modern systems deploying in-hardware defenses. And we have a very neat end-to-end exploit leaking arbitrary kernel memory on modern Intel CPUs to prove it (PoC||GTFO right?).
·vusec.net·
BRANCH HISTORY INJECTION
Analyzing a watering hole campaign using macOS exploits
Analyzing a watering hole campaign using macOS exploits
To protect our users, TAG routinely hunts for 0-day vulnerabilities exploited in-the-wild. In late August 2021, TAG discovered watering hole attacks targeting visitors to Hong Kong websites for a media outlet and a prominent pro-democracy labor and political group. The watering hole served an XNU privilege escalation vulnerability (CVE-2021-30869) unpatched in macOS Catalina, which led to the installation of a previously unreported backdoor.
·blog.google·
Analyzing a watering hole campaign using macOS exploits