Persistent administrative access via fixed session identifiers
Published Dec 10, 2021 · Updated Aug 3, 2024
Session fixation in login.php in Pluck CMS 4.7.15 allows remote authenticated users to retain administrative access after a password change. The administrative login accepts an attacker-chosen PHPSESSID, reuses that identifier after authentication, and neither expires nor otherwise binds the resulting session. Exploitation requires prior access to an administrator password or session, after which the fixed cookie grants continued panel access from another browser despite a password reset.
Summary
What happened
Session fixation in login.php in Pluck CMS 4.7.15 allows remote authenticated users to retain administrative access after a password change. The administrative login accepts an attacker-chosen PHPSESSID, reuses that identifier after authentication, and neither expires nor otherwise binds the resulting session. Exploitation requires prior access to an administrator password or session, after which the fixed cookie grants continued panel access from another browser despite a password reset.
The record
- CVE
- CVE-2021-31745
- Published
- Dec 10, 2021
- Updated
- Aug 3, 2024
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-384, T1550.004
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Dec 10, 2021CVE publishedPublication date reported by the CVE source.
- Aug 3, 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?
What conditions does exploitation require?
What is affected?
Affected products and versions are unavailable in this record.
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
- Pluck 4.7.15 session-fixation reproductionfunctional · demonstrated
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Technologies
Your stack
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Your stack
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