Authenticated session spoofing via stale cached request data
Published Jul 27, 2021 · Updated Aug 4, 2024
Authorization bypass in LemonLDAP::NG before 2.0.12 allows remote authenticated users to assume another user session via repeated logins. The request handler retains its shared data hash when fetchId returns no session identifier, allowing a later request to reuse identity data from an earlier request. Repeated authentication attempts can alternate the resulting session between two users, enabling spoofing and access under the other user's identity.
Summary
What happened
Authorization bypass in LemonLDAP::NG before 2.0.12 allows remote authenticated users to assume another user session via repeated logins. The request handler retains its shared data hash when fetchId returns no session identifier, allowing a later request to reuse identity data from an earlier request. Repeated authentication attempts can alternate the resulting session between two users, enabling spoofing and access under the other user's identity.
The record
- CVE
- CVE-2021-35472
- Published
- Jul 27, 2021
- Updated
- Aug 4, 2024
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-307, T1190
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jul 27, 2021CVE publishedPublication date reported by the CVE source.
- Aug 4, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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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
- Upstream issue 2539 authentication-loop reproductionproof of concept · unverified
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Technologies
Your stack
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Your stack
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