Account takeover via unrotated session identifier
Published Apr 15, 2023 · Updated Feb 6, 2025
Session fixation in Easy!Appointments before 1.5.0 allows remote attackers to take over a user's account through a fixed session cookie. The Login::validate method authenticates a user without regenerating the ea_session identifier, so an attacker-chosen cookie remains valid after login. Exploitation requires the victim to accept the fixed cookie and then authenticate; the attacker inherits that user's session, including administrator access.
Summary
What happened
Session fixation in Easy!Appointments before 1.5.0 allows remote attackers to take over a user's account through a fixed session cookie. The Login::validate method authenticates a user without regenerating the ea_session identifier, so an attacker-chosen cookie remains valid after login. Exploitation requires the victim to accept the fixed cookie and then authenticate; the attacker inherits that user's session, including administrator access.
The record
- CVE
- CVE-2023-2105
- Published
- Apr 15, 2023
- Updated
- Feb 6, 2025
- Vendor
- Alex Tselegidis
- Product
- Easy!Appointments
- Classifications
- CWE-384, T1539
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Apr 15, 2023CVE publishedPublication date reported by the CVE source.
- Feb 6, 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=unspecified <1.5.0
What conditions does exploitation require?
What is affected?
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.
Public exploit references
- Huntr session-fixation proof of conceptproof of concept · unverified
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Technologies
Your stack
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Your stack
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