Password recovery via predictable salt generation
Published Mar 26, 2025 · Updated Sep 5, 2025
Weak salt generation in DBIx::Class::EncodedColumn before 0.00032 allows local users to aid recovery of stored passwords. The Digest.pm encoder builds each missing salt by repeatedly indexing a 65-character pool with Perl rand(), which is unsuitable for security-sensitive randomness. Exploitation requires access to stored password hashes, and predictable salts reduce their resistance to offline password recovery.
Summary
What happened
Weak salt generation in DBIx::Class::EncodedColumn before 0.00032 allows local users to aid recovery of stored passwords. The Digest.pm encoder builds each missing salt by repeatedly indexing a 65-character pool with Perl rand(), which is unsuitable for security-sensitive randomness. Exploitation requires access to stored password hashes, and predictable salts reduce their resistance to offline password recovery.
The record
- CVE
- CVE-2025-27551
- Published
- Mar 26, 2025
- Updated
- Sep 5, 2025
- Vendor
- Wallace Reis
- Product
- DBIx::Class::EncodedColumn
- Classifications
- CWE-331, CWE-916, CWE-338
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Mar 26, 2025CVE publishedPublication date reported by the CVE source.
- Sep 5, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <0.00032
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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