Linux Kernel - BadIRET Local Privilege Escalation

2017-07-2400:00:00

Ren Kimura

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

7.2 High

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:L/Au:N/C:C/I:C/A:C

JSON

Linux Kernel - BadIRET Local Privilege Escalation

# CVE-2014-9322 PoC for Linux kernel
CVE-2014-9322 (a.k.a BadIRET) proof of concept for Linux kernel.  
This PoC uses only syscalls not any libraries, like pthread. Threads are implemented using raw Linux syscalls.  
[Raw Linux Threads via System Calls](http://nullprogram.com/blog/2015/05/15/)  

# Usage
```
$ make
```
**badiret.elf** is an ELF executable.  
**badiret.bin** is a raw binary that can be used as payload.  

# Reference
[Exploiting “BadIRET” vulnerability (CVE-2014-9322, Linux kernel privilege escalation)](https://blogs.bromium.com/exploiting-badiret-vulnerability-cve-2014-9322-linux-kernel-privilege-escalation/)  

Download: https://github.com/offensive-security/exploitdb-bin-sploits/raw/master/bin-sploits/44205.zip