CURL-CVE-2011-2192

    Dashboard / Vulnerabilities / CURL-CVE-2011-2192

    CURL-CVE-2011-2192

    Published: 23 Jun 2011Last Modified: 25 Apr 2026
    Aliases:

    Summary: inappropriate GSSAPI delegation

    Details: When doing GSSAPI authentication, libcurl unconditionally performs credential delegation. This hands the server a copy of the client's security credentials, allowing the server to impersonate the client to any other using the same GSSAPI mechanism. This is obviously a sensitive operation, which should only be done when the user explicitly so directs. The GSS/Negotiate feature is only used by libcurl for HTTP authentication if told to, and only if libcurl was built with a library that provides the GSSAPI. Many builds of libcurl do not have GSS enabled.

    References:

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 7.10.6
    Fixed -7.21.7

    Affected versions

    7.21.6
    7.21.5
    7.21.4
    7.21.3
    7.21.2
    7.21.1
    7.21.0

    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