PyPI: urllib3
CVE-2018-25091
Safety vulnerability ID: SFTY-20231015-86742
Safety legacy ID: pyup.io-71562
Affected versions of urllib3 affected versions are vulnerable due to an issue where the authorization HTTP header is not removed when following a cross-origin redirect. This can result in credentials within the authorization header being exposed to unintended hosts or transmitted in cleartext. This vulnerability exists because of an incomplete fix for CVE-2018-20060, which addressed a similar issue case-sensitively.
Overview
Authorization Header forwarded on redirect
Advisory
Affected versions of urllib3 affected versions are vulnerable due to an issue where the authorization HTTP header is not removed when following a cross-origin redirect. This can result in credentials within the authorization header being exposed to unintended hosts or transmitted in cleartext. This vulnerability exists because of an incomplete fix for CVE-2018-20060, which addressed a similar issue case-sensitively.
How to Fix
Mitigation and Workarounds
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Vulnerable Functions
Functions linked to known vulnerabilities.
References
- https://getsafety.com/vulnerabilities/SFTY-20231015-86742/CVE-2018-25091
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-25091
- https://github.com/urllib3/urllib3/commit/adb358f8e06865406d1f05e581a16cbea2136fbc
- https://nvd.nist.gov/vuln/detail/CVE-2018-25091
- https://github.com/urllib3/urllib3/issues/1510
- https://github.com/urllib3/urllib3/commit/adb358f8e06865406d1f05e581a16cbea2136fbc
- https://github.com/urllib3/urllib3/compare/1.24.1...1.24.2
- https://github.com/pypa/advisory-database/tree/main/vulns/urllib3/PYSEC-2023-207.yaml
- https://github.com/advisories/GHSA-gwvm-45gx-3cf8
Verified by Safety
Our Cybersecurity Intelligence Team reviewed this vulnerability. We combine public data with our own research to find issues not yet reported to public sources.
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