PYSEC-2014-86

    Dashboard / Vulnerabilities / PYSEC-2014-86

    PYSEC-2014-86

    Published: 20 May 2014Last Modified: 10 Jun 2026

    Summary:

    Details: The (1) make_nonce, (2) generate_nonce, and (3) generate_verifier functions in SimpleGeo python-oauth2 uses weak random numbers to generate nonces, which makes it easier for remote attackers to guess the nonce via a brute force attack.

    References: https://github.com/simplegeo/python-oauth2/issues/9, https://github.com/simplegeo/python-oauth2/pull/146, http://www.openwall.com/lists/oss-security/2013/09/12/7, http://www.securityfocus.com/bid/62388, https://github.com/advisories/GHSA-rv8h-p43r-4x5r

    Affected packages

    Package

    Name: oauth2

    Purl: pkg:pypi/oauth2

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1.9rc1

    Affected versions

    1.0.0
    1.0.4
    1.0.5
    1.0.6
    1.0.7
    1.0.8
    1.0.9

    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