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Password Shucking Vulnerability

Moderate severity GitHub Reviewed Published Mar 11, 2023 in codeigniter4/shield • Updated Mar 23, 2023

Package

composer codeigniter4/shield (Composer)

Affected versions

< 1.0.0-beta.4

Patched versions

1.0.0-beta.4

Description

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

For more information

If you have any questions or comments about this advisory:

References

@lonnieezell lonnieezell published to codeigniter4/shield Mar 11, 2023
Published by the National Vulnerability Database Mar 13, 2023
Published to the GitHub Advisory Database Mar 13, 2023
Reviewed Mar 13, 2023
Last updated Mar 23, 2023

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
High
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS score

0.174%
(55th percentile)

Weaknesses

CVE ID

CVE-2023-27580

GHSA ID

GHSA-c5vj-f36q-p9vg

Source code

Credits

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