SLAE

SLAE Securitytube Linux Assembly Expert SLAE SLAE-721 Build + Assembling ... + Linking ... + Extract Shellcode from binary ... "\x31\xc0\x50\x68\x2f\x2f\x73\x68" "\x68\x2f\x62\x69\x6e\x89\xe3\x89" "\xc1\xb0\x0b\xcd\x80" + Create C-Header file ... + Compile PoC ... + Run PoC ... + Shellcode Length...

userland-exec

Userland Exec Userland exec replaces the existing process image within the current address space with a new one. It mimics the behavior of the system call execve, but the process structures describing the process image remain unchanged. In other words, the process name reported by system utilitie...

shellcode

shellcode “A vulnerability provides an assembly language for a computer that has never been programmed before, and that was not designed with programmability in mind.” -- Halvar Flake A collection of new and old shellcode samples. Article https://hnsecurity.it/blog/new-and-old-shellcode-samples/...

experiments

Experiments Repository of various experiments / PoC. debugging-secure-kernel: PoC gdb debugging the Windows 10 secure kernel, on top of QEMU KVM dns: Experiments regarding DNS / Certificate transparency / Homoglyphs Attack Surface Reduction: Demystifying Windows Attack Surface Reduction internals...

ulexecve

Quick Start Execute dynamic or statically compiled ELF Linux binaries without ever calling execve. cat /bin/echo | ulexecve - hello hello Introduction This Python tool is called ulexecve and it stands for userland execve. It helps you execute arbitrary ELF binaries on Linux systems from userland...

Linux_X86_Reverse_TCP_Alphanumeric_Staged_Shellcode_Execve-bin-bash

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Webmin_Exploit_reverse_shell

ntroduction: The Webmin Exploit is a targeted exploit for the Webmin service, which can be exploited on older versions of Webmin. This exploit uses various techniques to execute malicious code and gain unauthorized access to the target system. It involves: Using both C and Assembly code to execut...

CVE-2026-98260

In the Linux kernel, the following vulnerability has been resolved: exec: Cleanup POSIX timers right after dethread A per-thread CPU timer holds a reference to the PID of the thread it is attached to and, while it is armed, its node is queued in that thread's posixcputimers. The task is looked up...

UBUNTU-CVE-2026-98260

In the Linux kernel, the following vulnerability has been resolved: exec: Cleanup POSIX timers right after dethread A per-thread CPU timer holds a reference to the PID of the thread it is attached to and, while it is armed, its node is queued in that thread's posixcputimers. The task is looked up...

CVE-2026-98260

The Linux kernel is vulnerable to a use-after-free condition during the execve() system call. The issue occurs when a non-leader thread executes; while de_thread() changes the PID ownership, a per-thread CPU timer node remains queued on the original thread's posix_cputimers. If subsequent operati...

CVE-2026-98260 exec: Cleanup POSIX timers right after de_thread()

In the Linux kernel, the following vulnerability has been resolved: exec: Cleanup POSIX timers right after dethread A per-thread CPU timer holds a reference to the PID of the thread it is attached to and, while it is armed, its node is queued in that thread's posixcputimers. The task is looked up...

PT-2026-106589

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A use-after-free issue exists in the Linux kernel during the execution of execve. When a non-leader thread performs an exec, the de thread function changes the task that owns the Process...

Linux Distros Unpatched Vulnerability : CVE-2026-98260

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - exec: Cleanup POSIX timers right after dethread A per-thread CPU timer holds a reference to the PID of the thread it is attached to and, while it is armed, its...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: exec: Force a single empty string when argv is empty Quoting 1 Ariadne Conill: “In several other operating systems, it is a hard requirement that the second argument to execve2 be the name of a program. This prevents scenarios...

CentOS Linux 6 [TuxCare] Security Update: zsh / zsh-html Multiple Vulnerabilities (CENTOS6:CLSA-2026:1777051205)

The CentOS Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare CENTOS6:CLSA-2026:1777051205 advisory. - zsh through version 5.4.2 is vulnerable to a stack-based buffer overflow in the exec.c:hashcmd function. A local attacker could exploi...

CLEANSTART-2023-EI38317 "process-execute" and "process-spawn" procedures did not free memory correctly when the execve() call failed, resulting in a memory leak

Security vulnerability affects the chicken package. The "process-execute" and "process-spawn" procedures did not free memory correctly when the execve call failed, resulting in a memory leak...

CLEANSTART-2023-NZ21733 "process-execute" and "process-spawn" procedures in CHICKEN Scheme used fixed-size buffers for holding the arguments and environment variables to use in its execve() call

Security vulnerability affects the chicken package. The "process-execute" and "process-spawn" procedures in CHICKEN Scheme used fixed-size buffers for holding the arguments and environment variables to use in its execve call...

FreeBSD execve Data Compromise

The vulnerability of the execve system call in FreeBSD operating systems is related to improper verification of removed users. Exploiting this vulnerability can allow an attacker to compromise the confidentiality, integrity, and accessibility of protected information...

Linux Distros Unpatched Vulnerability : CVE-2026-89766

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - pidfd: hold execupdatelock around namespace ioctl The PIDFDGETNAMESPACE ioctls in pidfdioctl perform a filesystem credentials ptrace access check before handing...

DEBIAN-CVE-2026-89766

In the Linux kernel, the following vulnerability has been resolved: pidfd: hold execupdatelock around namespace ioctl The PIDFDGETNAMESPACE ioctls in pidfdioctl perform a filesystem credentials ptrace access check before handing out a namespace file descriptor. The accompanying comment states tha...