Input validation

Insufficient data validation in waitid allowed an user to escape sandboxes on Linux...

CVE-2017-5123

CVE-2017-5123 is a Linux kernel local privilege-escalation vulnerability in the waitid path. The waitid handler in kernel/exit.c writes to user memory by calling unsafe_put_user without performing an access_ok() check, and without wrapping user-space writes in the required user_access_begin()/use...

CVE-2017-5123

Insufficient data validation in waitid allowed an user to escape sandboxes on Linux...

CVE-2017-5123

Insufficient data validation in waitid allowed an user to escape sandboxes on Linux...

CVE-2017-5123: Improper Input Validation

Insufficient data validation in waitid allowed an user to escape sandboxes on Linux...

Exploit for Improper Input Validation in Linux Linux_Kernel

CVE-2017-5123 PoC CVE-2017-5123 - LPE - Bypassing SMEP/SMAP. N...

The vulnerability in the implementation of the `waitid` function in Linux kernel allows a malicious actor to exploit their privileges.

The vulnerability of the waitid function implementation in Linux operating systems is related to an unvalidated error state. Exploiting this vulnerability can allow attackers to gain increased privileges...

Ubuntu 17.10 : linux, linux-raspi2 vulnerabilities (USN-3487-1)

It was discovered that the KVM subsystem in the Linux kernel did not properly keep track of nested levels in guest page tables. A local attacker in a guest VM could use this to cause a denial of service host OS crash or possibly execute arbitrary code in the host OS. CVE-2017-12188 It was...

USN-3487-1: Linux kernel vulnerabilities

It was discovered that the KVM subsystem in the Linux kernel did not properly keep track of nested levels in guest page tables. A local attacker in a guest VM could use this to cause a denial of service host OS crash or possibly execute arbitrary code in the host OS. CVE-2017-12188 It was...

Linux Kernel 4.13 (Ubuntu 17.10) - waitid() SMEPSMAPChrome Sandbox Privilege Escalation

Linux Kernel 4.13 Ubuntu 17.10 - waitid SMEPSMAPChrome Sandbox Privilege Escalation // Proof of concept exploit for waitid bug introduced in Linux Kernel 4.13 // By Chris Salls twitter.com/chrissalls // This exploit can be used to break out out of sandboxes such as that in google chrome // In thi...

Linux Kernel 4.13 (Ubuntu 17.10) - 'waitid()' SMEP/SMAP/Chrome Sandbox Privilege Escalation

// Proof of concept exploit for waitid bug introduced in Linux Kernel 4.13 // By Chris Salls twitter.com/chrissalls // This exploit can be used to break out out of sandboxes such as that in google chrome // In this proof of concept we install the seccomp filter from chrome as well as a chroot, //...

Linux Kernel 4.14.0-rc4+ waitid() Privilege Escalation

define GNUSOURCE include include include include include include include struct cred; struct taskstruct; typedef struct cred preparekernelcredt struct taskstruct daemon attributeregparm3; typedef int commitcredst struct cred new attributeregparm3; preparekernelcredt preparekernelcred; commitcreds...

Linux Kernel 4.14.0-rc4+ - 'waitid()' Privilege Escalation(CVE-2017-5123)

This is a guest post by a young and talented Portuguese exploiter, Federico Bento. He won this year’s Pwnie for Epic Achievement exploiting TIOCSTI ioctl. Days ago he posted a video demonstrating an exploit for CVE-2017-5123 and luckly for you I managed to convince him to do a write-up about it. ...

Linux Kernel 4.14.0-rc4+ - waitid() Privilege Escalation Exploit

Exploit for linux platform in category local exploits define GNUSOURCE include include include include include include include struct cred; struct taskstruct; typedef struct cred preparekernelcredt struct taskstruct daemon attributeregparm3; typedef int commitcredst struct cred new...

Linux Kernel 4.14.0-rc4+ - 'waitid()' Local Privilege Escalation

define GNUSOURCE include include include include include include include struct cred; struct taskstruct; typedef struct cred preparekernelcredt struct taskstruct daemon attributeregparm3; typedef int commitcredst struct cred new attributeregparm3; preparekernelcredt preparekernelcred; commitcreds...

CVE-2017-5123

The waitid implementation in upstream kernels did not restrict the target destination to copy information results. This can allow local users to write to otherwise protected kernel memory, which can lead to privilege escalation...

UBUNTU-CVE-2017-5123

Insufficient data validation in waitid allowed an user to escape sandboxes on Linux...

CVE-2017-5123

Insufficient data validation in waitid allowed an user to escape sandboxes on Linux...

Linux kernel information disclosure vulnerability (CNVD-2017-33322)

The Linux kernel is a computer operating system kernel written in C and assembly language, compliant with the POSIX standard, and distributed under the GNU General Public License. The waitid implementation of kernel/exit.c in the Linux kernel provides unintended access to Rusage data structures,...

CVE-2017-14954

The waitid implementation in kernel/exit.c in the Linux kernel through 4.13.4 accesses rusage data structures in unintended cases, which allows local users to obtain sensitive information, and bypass the KASLR protection mechanism, via a crafted system call...