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    CVE-2009-4151

    Session fixation vulnerability in html/Elements/SetupSessionCookie in Best Practical Solutions RT 3.0.0 through 3.6.9 and 3.8.x through 3.8.5 allows remote attackers to hijack web sessions by setting the session identifier via a manipulation that leverages "HTTP access to the RT server," a related issue to CVE-2009-3585.

    Published:Nov 20, 2009
    Last Modified:Apr 23, 2026
    EPS:Dec 2, 2009
    EPSS Score:0.00377
    CVSS Score:5.8

    Affected Products

    Vendor
    Bestpractical
    Product
    Rt

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-287 Improper Authentication

    Related CVEs

    CVE-2026-44230 (CVSS 6.1) — RT is an open source, enterprise-grade issue and ticket tracking system. Versions 5.0.4 up to (but not includi…
    CVE-2026-44231 (CVSS 9.1) — RT is an open source, enterprise-grade issue and ticket tracking system. Versions prior to 5.0.10, 6.0.0 and a…
    CVE-2026-44229 (CVSS 5.4) — RT is an open source, enterprise-grade issue and ticket tracking system. Versions 5.0.0 and 6.0.0 and above, p…
    CVE-2026-44228 (CVSS 5.4) — RT is an open source, enterprise-grade issue and ticket tracking system. Versions 6.0.0 and above, prior to 6.…
    CVE-2026-44227 (CVSS 6.1) — RT is an open source, enterprise-grade issue and ticket tracking system. Versions 6.0.0 and above, prior to 6.…
    CVE-2026-41076 (CVSS 8.1) — RT is an open source, enterprise-grade issue and ticket tracking system. Versions 5.0.9 and prior in addition …
    CVE-2026-41075 (CVSS 8.8) — RT is an open source, enterprise-grade issue and ticket tracking system. Versions 5.0.0 through 5.0.9 and 6.0.…
    CVE-2026-41074 (CVSS 7.1) — RT is an open source, enterprise-grade issue and ticket tracking system. Versions 6.0.0 through 6.0.2 contain …
    CVE-2026-41073 (CVSS 4.6) — RT is an open source, enterprise-grade issue and ticket tracking system. Versions prior to 5.0.10 and 6.0.0 th…
    CVE-2014-1474 (CVSS 5) — Algorithmic complexity vulnerability in Email::Address::List before 0.02, as used in RT 4.2.0 through 4.2.2, a…

    References

    http://bestpractical.typepad.com/files/rt-3.0.0-session_fixation.v3.patch
    http://bestpractical.typepad.com/files/rt-3.0.1-3.0.6-session_fixation.v3.patch
    http://bestpractical.typepad.com/files/rt-3.0.7-3.6.1-session_fixation.v3.patch
    http://bestpractical.typepad.com/files/rt-3.6.2-3.6.3-session_fixation.v3.patch
    http://bestpractical.typepad.com/files/rt-3.6.4-3.6.9-session_fixation.v2.patch
    http://bestpractical.typepad.com/files/rt-3.8-session_fixation.patch
    http://blog.bestpractical.com/2009/11/session-fixation-vulnerability.html
    http://lists.bestpractical.com/pipermail/rt-announce/2009-November/000176.html
    http://lists.bestpractical.com/pipermail/rt-announce/2009-November/000177.html
    http://secunia.com/advisories/37546
    http://secunia.com/advisories/37728
    http://www.securityfocus.com/bid/37162
    https://exchange.xforce.ibmcloud.com/vulnerabilities/54472
    https://www.redhat.com/archives/fedora-package-announce/2009-December/msg00761.html
    https://www.redhat.com/archives/fedora-package-announce/2009-December/msg00794.html
    https://www.redhat.com/archives/fedora-package-announce/2009-December/msg00832.html
    http://bestpractical.typepad.com/files/rt-3.0.0-session_fixation.v3.patch
    http://bestpractical.typepad.com/files/rt-3.0.1-3.0.6-session_fixation.v3.patch
    http://bestpractical.typepad.com/files/rt-3.0.7-3.6.1-session_fixation.v3.patch
    http://bestpractical.typepad.com/files/rt-3.6.2-3.6.3-session_fixation.v3.patch
    http://bestpractical.typepad.com/files/rt-3.6.4-3.6.9-session_fixation.v2.patch
    http://bestpractical.typepad.com/files/rt-3.8-session_fixation.patch
    http://blog.bestpractical.com/2009/11/session-fixation-vulnerability.html
    http://lists.bestpractical.com/pipermail/rt-announce/2009-November/000176.html
    http://lists.bestpractical.com/pipermail/rt-announce/2009-November/000177.html
    http://secunia.com/advisories/37546
    http://secunia.com/advisories/37728
    http://www.securityfocus.com/bid/37162
    https://exchange.xforce.ibmcloud.com/vulnerabilities/54472
    https://www.redhat.com/archives/fedora-package-announce/2009-December/msg00761.html
    https://www.redhat.com/archives/fedora-package-announce/2009-December/msg00794.html
    https://www.redhat.com/archives/fedora-package-announce/2009-December/msg00832.html

    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