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Security Advisories: GSA_kwCzR0hTQS1jNXZqLWYzNnEtcDl2Z84AAyEz
Password Shucking Vulnerability
Impact
An improper implementation was found in the password storage process.
All hashed passwords stored in Shield v1.0.0-beta.3 or earlier are easier to crack than expected due to the vulnerability. Therefore, they should be removed as soon as possible.
If an attacker gets (1) the user's hashed password by Shield, and (2) the hashed password (SHA-384 hash without salt) from somewhere, the attacker may easily crack the user's password.
Patches
Upgrade to Shield v1.0.0-beta.4 or later.
After upgrading, all users’ hashed passwords should be updated (saved to the database).
See https://github.com/codeigniter4/shield/blob/develop/UPGRADING.md for details.
Workarounds
None.
References
- https://cheatsheetseries.owasp.org/cheatsheets/Password_Storage_Cheat_Sheet.html#pre-hashing-passwords
- https://blog.ircmaxell.com/2015/03/security-issue-combining-bcrypt-with.html
- https://www.scottbrady91.com/authentication/beware-of-password-shucking
For more information
If you have any questions or comments about this advisory:
- Open an issue or discussion in codeigniter4/shield
- Email us at [email protected]
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS1jNXZqLWYzNnEtcDl2Z84AAyEz
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Moderate
Classification: General
Published: about 1 year ago
Updated: about 1 year ago
CVSS Score: 5.9
CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Identifiers: GHSA-c5vj-f36q-p9vg, CVE-2023-27580
References:
- https://github.com/codeigniter4/shield/security/advisories/GHSA-c5vj-f36q-p9vg
- https://nvd.nist.gov/vuln/detail/CVE-2023-27580
- https://github.com/codeigniter4/shield/commit/ea9688dd01d100193d834117dbfc2cfabcf9ea0b
- https://blog.ircmaxell.com/2015/03/security-issue-combining-bcrypt-with.html
- https://cheatsheetseries.owasp.org/cheatsheets/Password_Storage_Cheat_Sheet.html#pre-hashing-passwords
- https://github.com/codeigniter4/shield/blob/develop/UPGRADING.md
- https://www.scottbrady91.com/authentication/beware-of-password-shucking
- https://github.com/advisories/GHSA-c5vj-f36q-p9vg
Blast Radius: 9.1
Affected Packages
packagist:codeigniter4/shield
Dependent packages: 7Dependent repositories: 35
Downloads: 102,692 total
Affected Version Ranges: < 1.0.0-beta.4
Fixed in: 1.0.0-beta.4
All affected versions: 1.0.0-beta, 1.0.0-beta.2, 1.0.0-beta.3
All unaffected versions: 1.0.0, 1.0.1, 1.0.2, 1.0.3