#VU32620 Permissions, Privileges, and Access Controls in lighttpd - CVE-2013-4559
Published: November 20, 2013 / Updated: July 28, 2020
Vulnerability identifier: #VU32620
Vulnerability risk: High
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2013-4559
CWE-ID: CWE-264
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
lighttpd
lighttpd
Software vendor:
lighttpd
lighttpd
Description
The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.
lighttpd before 1.4.33 does not check the return value of the (1) setuid, (2) setgid, or (3) setgroups functions, which might cause lighttpd to run as root if it is restarted and allows remote attackers to gain privileges, as demonstrated by multiple calls to the clone function that cause setuid to fail when the user process limit is reached.
Remediation
Install update from vendor's website.
External links
- http://download.lighttpd.net/lighttpd/security/lighttpd_sa_2013_02.txt
- http://lists.opensuse.org/opensuse-updates/2014-01/msg00049.html
- http://marc.info/?l=bugtraq&m=141576815022399&w=2
- http://secunia.com/advisories/55682
- http://www.openwall.com/lists/oss-security/2013/11/12/4
- https://kc.mcafee.com/corporate/index?page=content&id=SB10310
- https://www.debian.org/security/2013/dsa-2795