Privilege escalation in Exim - CVE-2011-0017

 

Privilege escalation in Exim - CVE-2011-0017

Published: August 22, 2016 / Updated: December 29, 2016


Vulnerability identifier: #VU342
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/E:P/U:Clear
CVE-ID: CVE-2011-0017
CWE-ID: CWE-78
Exploitation vector: Local access
Exploit availability: No public exploit available
Vendor: Exim
Affected software:
Exim

Detailed vulnerability description

The vulnerability allows a local user to escalate privileges on the vulnerable system.

The vulnerability exists due to Exim implementation on Linux system does not check return values from the setuid()/setgid() system calls. A local user can execute arbitrary commands on the system with root privileges.

Successful exploitation of this vulnerability will allow a local user to gain root privileges on the system.


How to mitigate CVE-2011-0017

Update to version 4.73.

Sources