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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:Nov 19, 2013
    Last Modified:Apr 11, 2025
    EPS:Nov 19, 2013
    EPSS Score:0.08865
    CVSS Score:7.6

    Affected Products

    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Lighttpd
    Product
    Lighttpd
    Vendor
    Opensuse
    Product
    Opensuse

    Exploits

    No exploit reference

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    References

    http://download.lighttpd.net/lighttpd/security/lighttpd_sa_2013_02.txt
    http://jvn.jp/en/jp/JVN37417423/index.html
    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
    http://download.lighttpd.net/lighttpd/security/lighttpd_sa_2013_02.txt
    http://jvn.jp/en/jp/JVN37417423/index.html
    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

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High