CVE-2017-3156 — The OAuth2 Hawk and JOSE MAC Validation code in Apache CXF prior to 3
The OAuth2 Hawk and JOSE MAC Validation code in Apache CXF prior to 3.0.13 and 3.1.x prior to 3.1.10 is not using a constant time MAC signature comparison algorithm which may be exploited by sophisticated timing attacks.
Published
2017-08-10T18:29:00.300
Last modified
2026-05-13T00:24:29.033
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
01What is this vulnerability?
The OAuth2 Hawk and JOSE MAC Validation code in Apache CXF prior to 3.0.13 and 3.1.x prior to 3.1.10 is not using a constant time MAC signature comparison algorithm which may be exploited by sophisticated timing attacks.
02Affected products
No structured affected-product list available — see references below for vendor advisories.
03Active exploitation status
Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.
04Recommended remediation
- Patch to a fixed version listed in the vendor advisory (see references below).
- Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
- Hunt historical logs for exploitation indicators — see Detection signatures below.
05Technical details
For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.
06Detection signatures
Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.
07Related CVEs
No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.
08Timeline
- Published: 2017-08-10T18:29:00.300
- Last modified: 2026-05-13T00:24:29.033
09References
- cxf.apache.org — http://cxf.apache.org/security-advisories.data/CVE-2017-3156.txt.asc
- www.securityfocus.com — http://www.securityfocus.com/bid/96398
- access.redhat.com — https://access.redhat.com/errata/RHSA-2017:1832
- lists.apache.org — https://lists.apache.org/thread.html/r36e44ffc1a9b365327df62cdfaabe85b9a5637de10…
- lists.apache.org — https://lists.apache.org/thread.html/rc774278135816e7afc943dc9fc78eb0764f2c84a2b…
- lists.apache.org — https://lists.apache.org/thread.html/rd49aabd984ed540c8ff7916d4d79405f3fa311d2fd…
- lists.apache.org — https://lists.apache.org/thread.html/rec7160382badd3ef4ad017a22f64a266c7188b9ba7…
- lists.apache.org — https://lists.apache.org/thread.html/rfb87e0bf3995e7d560afeed750fac9329ff5f1ad49…
- lists.apache.org — https://lists.apache.org/thread.html/rff42cfa5e7d75b7c1af0e37589140a8f1999e578a7…
- cxf.apache.org — http://cxf.apache.org/security-advisories.data/CVE-2017-3156.txt.asc
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