CVE-2021-28363
Vulnerability from cvelistv5
Published
2021-03-15 00:00
Modified
2024-08-03 21:40
Severity ?
Summary
The urllib3 library 1.26.x before 1.26.4 for Python omits SSL certificate validation in some cases involving HTTPS to HTTPS proxies. The initial connection to the HTTPS proxy (if an SSLContext isn't given via proxy_config) doesn't verify the hostname of the certificate. This means certificates for different servers that still validate properly with the default urllib3 SSLContext will be silently accepted.
References
cve@mitre.orghttps://github.com/urllib3/urllib3/commit/8d65ea1ecf6e2cdc27d42124e587c1b83a3118b0Patch, Third Party Advisory
cve@mitre.orghttps://github.com/urllib3/urllib3/commits/mainPatch, Third Party Advisory
cve@mitre.orghttps://github.com/urllib3/urllib3/security/advisories/GHSA-5phf-pp7p-vc2rMitigation, Third Party Advisory
cve@mitre.orghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4S65ZQVZ2ODGB52IC7VJDBUK4M5INCXL/
cve@mitre.orghttps://pypi.org/project/urllib3/1.26.4/Third Party Advisory
cve@mitre.orghttps://security.gentoo.org/glsa/202107-36Third Party Advisory
cve@mitre.orghttps://security.gentoo.org/glsa/202305-02
cve@mitre.orghttps://security.netapp.com/advisory/ntap-20240621-0007/
cve@mitre.orghttps://www.oracle.com/security-alerts/cpuoct2021.htmlPatch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/urllib3/urllib3/commit/8d65ea1ecf6e2cdc27d42124e587c1b83a3118b0Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/urllib3/urllib3/commits/mainPatch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/urllib3/urllib3/security/advisories/GHSA-5phf-pp7p-vc2rMitigation, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4S65ZQVZ2ODGB52IC7VJDBUK4M5INCXL/
af854a3a-2127-422b-91ae-364da2661108https://pypi.org/project/urllib3/1.26.4/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/202107-36Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/202305-02
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20240621-0007/
af854a3a-2127-422b-91ae-364da2661108https://www.oracle.com/security-alerts/cpuoct2021.htmlPatch, Third Party Advisory
Impacted products
Vendor Product Version
Show details on NVD website

To clipboard 

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}


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