Ecosyste.ms: Advisories

Security Advisories: MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLWhoN20tcng0Zi00dnB2

CSRF can expose users authentication token

Issue

The /login and /change endpoints can return the authenticated user's authentication token in response to a GET request. Since GET requests aren't protected with a CSRF token, this could lead to a malicious 3rd party site acquiring the authentication token.

Patches

Version 3.4.5 and soon to be released 4.0.0 are patched.

Workarounds

If you aren't using authentication tokens - you can set the SECURITY_TOKEN_MAX_AGE to "0" (seconds) which should make the token unusable.

References

None

Permalink: https://github.com/advisories/GHSA-hh7m-rx4f-4vpv
JSON: https://advisories.ecosyste.ms/api/v1/advisories/MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLWhoN20tcng0Zi00dnB2
Source: GitHub Advisory Database
Origin: Unspecified
Severity: High
Classification: General
Published: over 3 years ago
Updated: about 1 year ago

Identifiers: GHSA-hh7m-rx4f-4vpv, CVE-2021-21241
References:

• https://github.com/Flask-Middleware/flask-security/security/advisories/GHSA-hh7m-rx4f-4vpv
• https://github.com/Flask-Middleware/flask-security/pull/422
• https://github.com/Flask-Middleware/flask-security/commit/61d313150b5f620d0b800896c4f2199005e84b1f
• https://github.com/Flask-Middleware/flask-security/commit/6d50ee9169acf813257c37b75babe9c28e83542a
• https://github.com/Flask-Middleware/flask-security/releases/tag/3.4.5
• https://pypi.org/project/Flask-Security-Too
• https://nvd.nist.gov/vuln/detail/CVE-2021-21241
• https://github.com/advisories/GHSA-hh7m-rx4f-4vpv

Repository: https://github.com/Flask-Middleware/flask-security
Blast Radius: 0.0

Affected Packages