SB2014082701 - Privilege escalation in PHP
Published: August 27, 2014
Security Bulletin ID
SB2014082701
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Privilege escalation (CVE-ID: CVE-2014-5459)
CWE-ID: CWE-61 - UNIX Symbolic Link (Symlink) Following
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to incorrect processing of symbolic links within the PEAR_REST class in REST.php in PEAR. A local user can create a specially crafted symlink and write arbitrary files into /tmp/pear/cache/directory.
Remediation
Install update from vendor's website.