Credential disclosure via reused AES key and IV
Published Jan 13, 2021 · Updated Sep 16, 2024
Weak password encryption in Canonical Remote Login Service 1.0.0-0ubuntu3 and earlier allows local users to recover cached credentials. The crypt.c cache code uses the password directly as an AES key and reuses that key as the initialization vector instead of deriving a key and generating a random IV. Exploitation requires local access to the cache file and exposes stored usernames and passwords without altering data or interrupting the service.
Summary
What happened
Weak password encryption in Canonical Remote Login Service 1.0.0-0ubuntu3 and earlier allows local users to recover cached credentials. The crypt.c cache code uses the password directly as an AES key and reuses that key as the initialization vector instead of deriving a key and generating a random IV. Exploitation requires local access to the cache file and exposes stored usernames and passwords without altering data or interrupting the service.
The record
- CVE
- CVE-2013-1053
- Published
- Jan 13, 2021
- Updated
- Sep 16, 2024
- Vendor
- Canonical
- Product
- Remote Login Service
- Classifications
- CWE-327, CWE-261, T1555
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Jan 13, 2021CVE publishedPublication date reported by the CVE source.
- Sep 16, 2024Record 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=1.0.0-0 <=1.0.0-0ubuntu3
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
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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