{"id":"CVE-2013-1337","aliases":["EUVD-2013-1377","GHSA-73vm-jqp4-fcg6"],"status":"published","title":"Microsoft .NET Framework 4.5 does not properly create policy requirements for custom Windows...","description":"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.\"","severity":{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.20632,"percentile":0.97538,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-287"],"published":"2013-05-15T01:00:00Z","modified":"2026-06-16T23:51:14Z","products":[{"vendor":"microsoft","product":".net_framework"}],"references":[{"url":"http://www.us-cert.gov/ncas/alerts/TA13-134A","tags":["third-party-advisory","x_refsource_CERT","x_transferred","Third Party Advisory","US Government Resource"]},{"url":"https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-040","tags":["vendor-advisory","x_refsource_MS","x_transferred"]},{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16741","tags":["vdb-entry","signature","x_refsource_OVAL","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2013-1337"},{"url":"https://github.com/advisories/GHSA-73vm-jqp4-fcg6"}],"sources":{"cve":[{"id":"CVE-2013-1337","description":"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.\"","status":"published","published":"2013-05-15T01:00:00Z","modified":"2024-08-06T14:57:05.151Z","updated_at":"2026-11-02T14:34:58.193873Z"}],"euvd":[{"id":"EUVD-2013-1377","description":"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.\"","status":"published","published":"2013-05-15T01:00:00Z","modified":"2024-08-06T14:57:05Z","updated_at":"2026-11-03T01:56:42.411756Z"}],"ghsa":[{"id":"GHSA-73vm-jqp4-fcg6","title":"Microsoft .NET Framework 4.5 does not properly create policy requirements for custom Windows...","description":"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.\"","status":"published","published":"2022-05-14T02:34:38Z","modified":"2023-02-02T05:06:07Z","cwes":["CWE-287"],"updated_at":"2026-11-02T14:52:14.631002Z"}],"nvd":[{"id":"CVE-2013-1337","description":"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.\"","status":"published","published":"2013-05-15T03:36:34.42Z","modified":"2026-06-16T23:51:14.53Z","cvss":[{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:02:25.704053Z"}]}}