Auth bypass in Microsoft .Net Framework
CVE-2013-1337
Microsoft .NET Framework 4.5 does not properly create policy requirements for custom Windows Communication Foundation (WCF) endpoint authentication in certain situations involving passwords over HTTPS, which allows remote attackers to bypass authentication by sending queries to an endpoint, aka "Authentication Bypass Vulnerability."
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: 0.206 (97.5th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 97th percentile — 97.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.206 · newest: 0.206 · change: 0.000
Affected products
- Microsoft .Net Framework — versions 4.5
Weakness classification (CWE)
References
- www.us-cert.gov/ncas/alerts/TA13-134A (US Government Resource, Third Party Advisory, third-party-advisory)
- docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-040 (vendor-advisory)
- oval.cisecurity.org/repository/search/definition/oval:org.mitre.oval:def:16741 (signature, vdb-entry)