Linux/x64 - execve (cat /etc/shadow) Shellcode (66 bytes)

Exploit Title: Linux/x64 - execve "cat /etc/shadow" Shellcode 66 bytes Author: Felipe Winsnes Tested on: Debian x64 Shellcode Length: 66 / global start start: xor rax, rax ; Zeroes out RAX. xor rbp, rbp ; Zeroes out RBP. push rax ; Pushes RAX's NULL-DWORD. mov rbp, 0x776f646168732f63 ; Moves valu...

Arbitrary Code Execution

linux is vulnerable to arbitrary code execution. The iouring takes a non-refcounted reference to the filesstruct of the process that submitted a request, causing execve to optimize unsharefd in an insecure manner and potentially allows for arbitrary code execution...

NewStart CGSL CORE 5.05 / MAIN 5.05 : kernel-rt Multiple Vulnerabilities (NS-SA-2020-0117)

The remote NewStart CGSL host, running version CORE 5.05 / MAIN 5.05, has kernel-rt packages installed that are affected by multiple vulnerabilities: - The fix for CVE-2019-11599, affecting the Linux kernel before 5.0.10 was not complete. A local user could use this flaw to obtain sensitive...

CVE-2020-29534

An issue was discovered in the Linux kernel before 5.9.3. iouring takes a non-refcounted reference to the filesstruct of the process that submitted a request, causing execve to incorrectly optimize unsharefd, aka CID-0f2122045b94...

An issue was discovered in the Linux kernel before 5.9.3. io_uring takes a non-refcounted reference to the files_struct of the process that submitted a request causing execve() to incorrectly optimize unshare_fd() aka CID-0f2122045b94.

...

Improper Input Validation

zsh is vulnerable to Improper Input Validation. The library does not properly handle the beginning of a ! in script file which may potentially lead to execve call to a program named on the second line...

Unspecified vulnerability in Linux kernel (CNVD-2021-09807)

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in versions of Linux kernel prior to 5.9.3 that stems from iouring accepting an unreferenced reference to the file structure of the process...

DEBIAN-CVE-2020-29534

An issue was discovered in the Linux kernel before 5.9.3. iouring takes a non-refcounted reference to the filesstruct of the process that submitted a request, causing execve to incorrectly optimize unsharefd, aka CID-0f2122045b94...

CVE-2020-29534

An issue was discovered in the Linux kernel before 5.9.3. iouring takes a non-refcounted reference to the filesstruct of the process that submitted a request, causing execve to incorrectly optimize unsharefd, aka CID-0f2122045b94...

CVE-2020-29534

An issue was discovered in the Linux kernel before 5.9.3. iouring takes a non-refcounted reference to the filesstruct of the process that submitted a request, causing execve to incorrectly optimize unsharefd, aka CID-0f2122045b94...

CVE-2020-29534

An issue was discovered in the Linux kernel before 5.9.3. iouring takes a non-refcounted reference to the filesstruct of the process that submitted a request, causing execve to incorrectly optimize unsharefd, aka CID-0f2122045b94...

UBUNTU-CVE-2020-29534

An issue was discovered in the Linux kernel before 5.9.3. iouring takes a non-refcounted reference to the filesstruct of the process that submitted a request, causing execve to incorrectly optimize unsharefd, aka CID-0f2122045b94...

Cross site request forgery (csrf)

An issue was discovered in the Linux kernel before 5.9.3. iouring takes a non-refcounted reference to the filesstruct of the process that submitted a request, causing execve to incorrectly optimize unsharefd, aka CID-0f2122045b94...

CVE-2020-29534

An issue was discovered in the Linux kernel before 5.9.3. iouring takes a non-refcounted reference to the filesstruct of the process that submitted a request, causing execve to incorrectly optimize unsharefd, aka CID-0f2122045b94...

CVE-2020-29534

An issue was discovered in the Linux kernel before 5.9.3. iouring takes a non-refcounted reference to the filesstruct of the process that submitted a request, causing execve to incorrectly optimize unsharefd, aka CID-0f2122045b94...

CVE-2020-29534

CVE-2020-29534 affects the Linux kernel prior to 5.9.3. The io_uring subsystem takes a non-refcounted reference to the submitting process’ files_struct, which can lead to incorrect optimization of unshare_fd() during execve(), as CID-0f2122045b94 describes. This is a local vulnerability with pote...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in versions of Linux kernel prior to 5.9.3 that stems from iouring accepting an unreferenced reference to the file structure of the process...

Linux/x86 reverse TCP Shellcode (84 bytes)

Title: Linux/x86 - Reverse TCP Shellcode 84 bytes Author: Xenofon Vassilakopoulos Tested on: Linux 3.13.0-32-generic 57precise1-Ubuntu i686 i386 GNU/Linux Architecture: i686 GNU/Linux Shellcode Length: 84 bytes SLAE-ID: SLAE - 1314 --------------------- Reverse Shellcode ---------------------...

Linux/x86 execve /bin/sh Shellcode (10 bytes)

Exploit Title: Linux/x86 - execve "/bin/sh" 10 bytes Google Dork: None Exploit Author: cybersaki Vendor Homepage: None Software Link: None Version: None Tested on: Kali linux 2020.2a i386 x86 CVE : none Shellcode-length : 10 SLAE-id : Purchased | email protected Reference :...

Linux/x86 - Egghunter(0x50905090) + sigaction + execve(/bin/sh) Shellcode (35 bytes)

Exploit Title: Linux/x86 - Egghunter0x50905090 + sigaction + execve/bin/sh Shellcode 35 bytes Author: danf42 Platform: Linux/x86 / sigaction2 approach to egghunting as described in the paper "Safely Searching Process Virtual Address Space" by skape The shellcode prepares the registers to start th...