high
7.5
CWE
385
Advisory Published
CVE Published
Advisory Published
Updated

CVE-2017-3156

First published: Mon Feb 20 2017(Updated: )

Apache CXF OAuth2 Hawk and JOSE MAC Validation code is not using a constant time MAC signature comparison algorithm which may be exploited by some sophisticated timing attacks. It may only affect OAuth2 Hawk or JWT access tokens or JOSE JWS/JWE interceptors which depend on HMac secret key algorithms. This vulnerability affects all versions of Apache CXF prior to 3.0.13, 3.1.10. Upstream patches: CXF 3.1.x: <a href="http://git-wip-us.apache.org/repos/asf/cxf/commit/555843f9">http://git-wip-us.apache.org/repos/asf/cxf/commit/555843f9</a> CXF 3.0.x <a href="http://git-wip-us.apache.org/repos/asf/cxf/commit/1338469f">http://git-wip-us.apache.org/repos/asf/cxf/commit/1338469f</a> CXF 3.2.0-SNAPSHOT (master): <a href="http://git-wip-us.apache.org/repos/asf/cxf/commit/e66ce235">http://git-wip-us.apache.org/repos/asf/cxf/commit/e66ce235</a> External References: <a href="https://cxf.apache.org/security-advisories.data/CVE-2017-3156.txt.asc">https://cxf.apache.org/security-advisories.data/CVE-2017-3156.txt.asc</a>

Credit: security@apache.org

Affected SoftwareAffected VersionHow to fix
maven/org.apache.cxf.karaf:apache-cxf>=3.1.0<=3.1.9
3.1.10
maven/org.apache.cxf.karaf:apache-cxf<=3.0.12
3.0.13
Apache CXF<=3.0.12
Apache CXF=3.1.0
Apache CXF=3.1.1
Apache CXF=3.1.2
Apache CXF=3.1.3
Apache CXF=3.1.4
Apache CXF=3.1.5
Apache CXF=3.1.6
Apache CXF=3.1.7
Apache CXF=3.1.8
Apache CXF=3.1.9

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2017-3156?

    The severity of CVE-2017-3156 is considered moderate due to its potential exploitation in timing attacks.

  • How do I fix CVE-2017-3156?

    To fix CVE-2017-3156, upgrade Apache CXF to version 3.1.10 or 3.0.13.

  • Which versions of Apache CXF are affected by CVE-2017-3156?

    Versions of Apache CXF from 3.1.0 to 3.1.9 and from 3.0.0 to 3.0.12 are affected by CVE-2017-3156.

  • What kind of attack can CVE-2017-3156 lead to?

    CVE-2017-3156 may lead to sophisticated timing attacks on OAuth2 Hawk and JOSE MAC validation.

  • Is CVE-2017-3156 related to OAuth2 tokens?

    Yes, CVE-2017-3156 specifically affects OAuth2 Hawk or JWT access tokens and JOSE JWS/JWE interceptors.

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