### [CVE-2017-3156](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-3156) ![](https://img.shields.io/static/v1?label=Product&message=Apache%20CXF&color=blue) ![](https://img.shields.io/static/v1?label=Version&message=3.1.x%20prior%20to%203.1.10%20&color=brightgreen) ![](https://img.shields.io/static/v1?label=Version&message=prior%20to%203.0.13%20&color=brightgreen) ![](https://img.shields.io/static/v1?label=Vulnerability&message=Timing%20attack&color=brightgreen) ### Description 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. ### POC #### Reference No PoCs from references. #### Github - https://github.com/ARPSyndicate/cvemon - https://github.com/eliasgranderubio/4depcheck - https://github.com/n0-traces/cve_monitor