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CVE-2013-4559

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Date: November 19, 2013

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.

Language: C

Severity Score

Related Resources (11)

http://www.openwall.com/lists/oss-security/2013/11/12/4
http://secunia.com/advisories/55682
http://jvn.jp/en/jp/JVN37417423/index.html
https://kc.mcafee.com/corporate/index?page=content&id=SB10310
https://security-tracker.debian.org/tracker/CVE-2013-4559
http://lists.opensuse.org/opensuse-updates/2014-01/msg00049.html
https://www.debian.org/security/2013/dsa-2795
https://nvd.nist.gov/vuln/detail/CVE-2013-4559
http://download.lighttpd.net/lighttpd/security/lighttpd_sa_2013_02.txt
http://marc.info/?l=bugtraq&m=141576815022399&w=2
https://www.mend.io/vulnerability-database/CVE-2013-4559

Severity Score

Weakness Type (CWE)

Permissions, Privileges, and Access Control

CWE-264

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): HIGH
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): HIGH
Authentication (AU): NONE
Confidentiality (C): COMPLETE
Integrity (I): COMPLETE
Availability (A): COMPLETE
Additional information:

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