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 security@codeigniter.com
Software afectado
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| Plataforma | Paquete | Versiones vulnerables | Corregida en |
|---|---|---|---|
| Paquete de Composer | codeigniter4/shield | < 1.0.0-beta.4 | 1.0.0-beta.4 |
Referencias
- 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
- https://github.com/codeigniter4/shield/blob/develop/UPGRADING.md
- https://www.scottbrady91.com/authentication/beware-of-password-shucking
- Vector CVSS
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N- Debilidad (CWE)
CWE-916- Plataforma
- Composer
- Paquete
codeigniter4/shield- Publicada
- 13.03.2023
- Actualizado
- 11.10.2026 10:22
Fuentes y licencias
OSV / GitHub Advisory Database - GHSA-c5vj-f36q-p9vg - CC BY 4.0
Historial de vulnerabilidades: codeigniter4/shield
Todas las vulnerabilidades publicadas de este paquete (Paquete de Composer), de la más reciente a la más antigua. Muestra si es un fallo aislado o un paquete que hay que vigilar.
- Entradas en total
- 4
- Primera → última
- 08.2022 11.2023
- Sin corrección
- 0
- Explotada en ataques
- 0
Distribución por gravedad
- Media 4
Divulgaciones por año
- 2022: 1
- 2023: 3
- 2024: 0
- 2025: 0
- 2026: 0
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