CVE-2013-4559

critical

Description

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.

References

https://www.debian.org/security/2013/dsa-2795

https://kc.mcafee.com/corporate/index?page=content&id=SB10310

http://www.openwall.com/lists/oss-security/2013/11/12/4

http://secunia.com/advisories/55682

http://marc.info/?l=bugtraq&m=141576815022399&w=2

http://lists.opensuse.org/opensuse-updates/2014-01/msg00049.html

http://jvn.jp/en/jp/JVN37417423/index.html

http://download.lighttpd.net/lighttpd/security/lighttpd_sa_2013_02.txt

Details

Source: Mitre, NVD

Published: 2013-11-20

Updated: 2024-11-21

Risk Information

CVSS v2

Base Score: 7.6

Vector: CVSS2#AV:N/AC:H/Au:N/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical