CVE-2021-28363

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2021-28363
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.

6.5 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

6.4 /10

CVSS v2.0 : MEDIUM

V2 Legend

Vector : AV:N/AC:L/Au:N/C:P/I:P/A:N

Exploitability : 10.0 / Impact : 4.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact NONE

References
Link Resource
https://github.com/urllib3/urllib3/commit/8d65ea1ecf6e2cdc27d42124e587c1b83a3118b0 Patch Third Party Advisory
https://github.com/urllib3/urllib3/commits/main Patch Third Party Advisory
https://github.com/urllib3/urllib3/security/advisories/GHSA-5phf-pp7p-vc2r Mitigation Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4S65ZQVZ2ODGB52IC7VJDBUK4M5INCXL/
https://pypi.org/project/urllib3/1.26.4/ Third Party Advisory
https://security.gentoo.org/glsa/202107-36 Third Party Advisory
https://security.gentoo.org/glsa/202305-02
https://security.netapp.com/advisory/ntap-20240621-0007/
https://www.oracle.com/security-alerts/cpuoct2021.html Patch Third Party Advisory
https://github.com/urllib3/urllib3/commit/8d65ea1ecf6e2cdc27d42124e587c1b83a3118b0 Patch Third Party Advisory
https://github.com/urllib3/urllib3/commits/main Patch Third Party Advisory
https://github.com/urllib3/urllib3/security/advisories/GHSA-5phf-pp7p-vc2r Mitigation Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4S65ZQVZ2ODGB52IC7VJDBUK4M5INCXL/
https://pypi.org/project/urllib3/1.26.4/ Third Party Advisory
https://security.gentoo.org/glsa/202107-36 Third Party Advisory
https://security.gentoo.org/glsa/202305-02
https://security.netapp.com/advisory/ntap-20240621-0007/
https://www.oracle.com/security-alerts/cpuoct2021.html Patch Third Party Advisory
Configurations

Configuration 1 (hide)

cpe:2.3:a:python:urllib3:*:*:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*

Configuration 3 (hide)

cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:8.59:*:*:*:*:*:*:*
History

21 Nov 2024, 05:59

Type Values Removed Values Added
References () https://github.com/urllib3/urllib3/commit/8d65ea1ecf6e2cdc27d42124e587c1b83a3118b0 - Patch, Third Party Advisory () https://github.com/urllib3/urllib3/commit/8d65ea1ecf6e2cdc27d42124e587c1b83a3118b0 - Patch, Third Party Advisory
References () https://github.com/urllib3/urllib3/commits/main - Patch, Third Party Advisory () https://github.com/urllib3/urllib3/commits/main - Patch, Third Party Advisory
References () https://github.com/urllib3/urllib3/security/advisories/GHSA-5phf-pp7p-vc2r - Mitigation, Third Party Advisory () https://github.com/urllib3/urllib3/security/advisories/GHSA-5phf-pp7p-vc2r - Mitigation, Third Party Advisory
References () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4S65ZQVZ2ODGB52IC7VJDBUK4M5INCXL/ - () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4S65ZQVZ2ODGB52IC7VJDBUK4M5INCXL/ -
References () https://pypi.org/project/urllib3/1.26.4/ - Third Party Advisory () https://pypi.org/project/urllib3/1.26.4/ - Third Party Advisory
References () https://security.gentoo.org/glsa/202107-36 - Third Party Advisory () https://security.gentoo.org/glsa/202107-36 - Third Party Advisory
References () https://security.gentoo.org/glsa/202305-02 - () https://security.gentoo.org/glsa/202305-02 -
References () https://security.netapp.com/advisory/ntap-20240621-0007/ - () https://security.netapp.com/advisory/ntap-20240621-0007/ -
References () https://www.oracle.com/security-alerts/cpuoct2021.html - Patch, Third Party Advisory () https://www.oracle.com/security-alerts/cpuoct2021.html - Patch, Third Party Advisory

21 Jun 2024, 19:15

Type Values Removed Values Added
References
  • () https://security.netapp.com/advisory/ntap-20240621-0007/ -

03 May 2023, 11:15

Type Values Removed Values Added
References
  • (GENTOO) https://security.gentoo.org/glsa/202305-02 -

08 Dec 2021, 19:58

Type Values Removed Values Added
CPE cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:8.59:*:*:*:*:*:*:*
References (MISC) https://www.oracle.com/security-alerts/cpuoct2021.html - (MISC) https://www.oracle.com/security-alerts/cpuoct2021.html - Patch, Third Party Advisory

20 Oct 2021, 11:16

Type Values Removed Values Added
References
  • (MISC) https://www.oracle.com/security-alerts/cpuoct2021.html -

14 Sep 2021, 16:50

Type Values Removed Values Added
References
  • (GENTOO) https://security.gentoo.org/glsa/202107-36 - Third Party Advisory

26 May 2021, 19:26

Type Values Removed Values Added
References (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4S65ZQVZ2ODGB52IC7VJDBUK4M5INCXL/ - (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4S65ZQVZ2ODGB52IC7VJDBUK4M5INCXL/ - Mailing List, Third Party Advisory
CPE cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*

24 May 2021, 04:15

Type Values Removed Values Added
References
  • (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4S65ZQVZ2ODGB52IC7VJDBUK4M5INCXL/ -
Information

Published : 2021-03-15 18:15

Updated : 2024-11-21 05:59

NVD link : CVE-2021-28363

Mitre link : CVE-2021-28363

CVE.ORG link : CVE-2021-28363

JSON object : View

Products Affected

fedoraproject

  • fedora

oracle

  • peoplesoft_enterprise_peopletools

python

  • urllib3
CWE
CWE-295

Improper Certificate Validation