GHSA-5phf-pp7p-vc2r

Suggest an improvement
Source
https://github.com/advisories/GHSA-5phf-pp7p-vc2r
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/03/GHSA-5phf-pp7p-vc2r/GHSA-5phf-pp7p-vc2r.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-5phf-pp7p-vc2r
Aliases
Published
2021-03-19T19:42:11Z
Modified
2024-11-18T22:47:07.986639Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N CVSS Calculator
  • 6.9 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N CVSS Calculator
Summary
Using default SSLContext for HTTPS requests in an HTTPS proxy doesn't verify certificate hostname for proxy connection
Details

Impact

Users who are using an HTTPS proxy to issue HTTPS requests and haven't configured their own SSLContext via proxy_config. Only the default SSLContext is impacted.

Patches

urllib3 >=1.26.4 has the issue resolved. urllib3<1.26 is not impacted due to not supporting HTTPS requests via HTTPS proxies.

Workarounds

Upgrading is recommended as this is a minor release and not likely to break current usage.

Configuring an SSLContext with check_hostname=True and passing via proxy_config instead of relying on the default SSLContext

For more information

If you have any questions or comments about this advisory: * Email us at sethmichaellarson@gmail.com

Database specific
{
    "nvd_published_at": "2021-03-15T18:15:00Z",
    "cwe_ids": [
        "CWE-295"
    ],
    "severity": "MODERATE",
    "github_reviewed": true,
    "github_reviewed_at": "2021-03-19T19:41:48Z"
}
References

Affected packages

PyPI / urllib3

Package

Affected ranges

Type
ECOSYSTEM
Events
Introduced
1.26.0
Fixed
1.26.4

Affected versions

1.*

1.26.0
1.26.1
1.26.2
1.26.3