Auth bypass in Zend Framework
CVE-2014-2685
The GenericConsumer class in the Consumer component in ZendOpenId before 2.0.2 and the Zend_OpenId_Consumer class in Zend Framework 1 before 1.12.4 violate the OpenID 2.0 protocol by ensuring only that at least one field is signed, which allows remote attackers to bypass authentication by leveraging an assertion from an OpenID provider.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v2 metric
CVSS v2 base score 7.5 (High). Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.028 (85.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 86th percentile — 85.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.028 · newest: 0.028 · change: 0.000
Affected products
- Zend Framework — versions 1.0.0, 1.0.1, 1.0.2
- Zend Zendopenid
Weakness classification (CWE)
References
- seclists.org/oss-sec/2014/q2/0 (mailing-list)
- www.mandriva.com/security/advisories (vendor-advisory)
- advisories.mageia.org/MGASA-2014-0151.html
- www.securityfocus.com/bid/66358 (vdb-entry)
- www.debian.org/security/2015/dsa-3265 (vendor-advisory)
- framework.zend.com/security/advisory/ZF2014-02 (Vendor Advisory)