CVE-2007-4099

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    CVE-2007-4099

    Published: 30 Jul 2007Last Modified: 10 Apr 2026

    Summary:

    Details: Tor before 0.1.2.15 can select a guard node beyond the first listed never-before-connected-to guard node, which allows remote attackers with control of certain guard nodes to obtain sensitive information and possibly leverage further attacks.

    References: http://secunia.com/advisories/26140, http://www.vupen.com/english/advisories/2007/2634, http://archives.seul.org/or/announce/Jul-2007/msg00000.html, http://secunia.com/advisories/26140, http://www.securityfocus.com/bid/25035, http://osvdb.org/46971

    Affected packages

    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