Privilege escalation in lighttpd - #VU338
Published: August 20, 2016
Vulnerability identifier: #VU338
CSH Severity: Low
CVSS v4: 2 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-61
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to incorrect symlink handling in stat_cache, when “server.follow-symlink” is set to “disable”. A local attacker can overwrite arbitrary files on the target system with privileges of the web server.
Successful exploitation of this vulnerability may allow a local user to obtain elevated privileges.
Affected software
lighttpd
Remediation
Update to version 1.4.41.