GHSA-gq67-pp9w-43gp

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    GHSA-gq67-pp9w-43gp

    Published: 16 Jun 2021Last Modified: 10 Sept 2026

    Summary: Cryptographically weak CSRF tokens in Apache MyFaces

    Details: In the default configuration, Apache MyFaces Core versions 2.2.0 to 2.2.13, 2.3.0 to 2.3.7, 2.3-next-M1 to 2.3-next-M4, and 3.0.0-RC1 use cryptographically weak implicit and explicit cross-site request forgery (CSRF) tokens. Due to that limitation, it is possible (although difficult) for an attacker to calculate a future CSRF token value and to use that value to trick a user into executing unwanted actions on an application. Mitigation: Existing web.xml configuration parameters can be used to direct MyFaces to use SecureRandom for CSRF token generation: org.apache.myfaces.RANDOM_KEY_IN_VIEW_STATE_SESSION_TOKEN=secureRandom org.apache.myfaces.RANDOM_KEY_IN_CSRF_SESSION_TOKEN=secureRandom org.apache.myfaces.RANDOM_KEY_IN_WEBSOCKET_SESSION_TOKEN=secureRandom

    References: https://nvd.nist.gov/vuln/detail/CVE-2021-26296, https://github.com/apache/myfaces/commit/cc6e1cc7b9aa17e52452f7f2657b3af9c421b2b2, https://issues.apache.org/jira/browse/MYFACES-4373, https://lists.apache.org/thread.html/r2b73e2356c6155e9ec78fdd8f72a4fac12f3e588014f5f535106ed9b%40%3Cannounce.apache.org%3E, https://security.netapp.com/advisory/ntap-20210528-0007, http://packetstormsecurity.com/files/161484/Apache-MyFaces-2.x-Cross-Site-Request-Forgery.html, http://seclists.org/fulldisclosure/2021/Feb/66

    Affected packages

    Package

    Name: org.apache.myfaces.core:myfaces-core-module

    Purl: pkg:maven/org.apache.myfaces.core/myfaces-core-module

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2.0.25

    Affected versions

    2.0.13
    2.0.14
    2.0.15
    2.0.16
    2.0.17
    2.0.18
    2.0.19
    2.0.20
    2.0.21
    2.0.22
    2.0.23
    2.0.24

    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
    GHSA-gq67-pp9w-43gp | CVE-DB