Vulnerability Monitor

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CVE-2013-4559

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.

Published

2013-11-20T14:12:30.727

Last Modified

2025-04-11T00:51:21.963

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 7.6 (HIGH)

CVSSv2 Vector

AV:N/AC:H/Au:N/C:C/I:C/A:C

Access Vector: NETWORK
Access Complexity: HIGH
Authentication: NONE
Confidentiality Impact: COMPLETE
Integrity Impact: COMPLETE
Availability Impact: COMPLETE

Exploitability Score

4.9

Impact Score

10.0

Weaknesses

Type: Primary
CWE-264

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	lighttpd	lighttpd	< 1.4.33	Yes
Operating System	debian	debian_linux	6.0	Yes
Operating System	debian	debian_linux	7.0	Yes
Operating System	debian	debian_linux	8.0	Yes
Operating System	opensuse	opensuse	12.2	Yes
Operating System	opensuse	opensuse	12.3	Yes
Operating System	opensuse	opensuse	13.1	Yes

References

http://download.lighttpd.net/lighttpd/security/lighttpd_sa_2013_02.txt Vendor Advisory ([email protected])
http://jvn.jp/en/jp/JVN37417423/index.html Third Party Advisory ([email protected])
http://lists.opensuse.org/opensuse-updates/2014-01/msg00049.html Mailing List, Third Party Advisory ([email protected])
http://marc.info/?l=bugtraq&m=141576815022399&w=2 Issue Tracking, Third Party Advisory ([email protected])
http://secunia.com/advisories/55682 Third Party Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2013/11/12/4 Mailing List, Third Party Advisory ([email protected])
https://kc.mcafee.com/corporate/index?page=content&id=SB10310 Third Party Advisory ([email protected])
https://www.debian.org/security/2013/dsa-2795 Third Party Advisory ([email protected])
http://download.lighttpd.net/lighttpd/security/lighttpd_sa_2013_02.txt Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://jvn.jp/en/jp/JVN37417423/index.html Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://lists.opensuse.org/opensuse-updates/2014-01/msg00049.html Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://marc.info/?l=bugtraq&m=141576815022399&w=2 Issue Tracking, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/55682 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2013/11/12/4 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://kc.mcafee.com/corporate/index?page=content&id=SB10310 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.debian.org/security/2013/dsa-2795 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)