Username enumeration via divergent password-change responses
Published Dec 13, 2021 · Updated Aug 4, 2024
Observable response discrepancy in Cibele Thinfinity VirtualUI before 3.0 allows remote attackers to enumerate Windows users. The /changePassword endpoint returns different, configuration-dependent messages for nonexistent and valid username values. No authentication or user interaction is required; the disclosed account names can support later password-guessing attempts.
Summary
What happened
Observable response discrepancy in Cibele Thinfinity VirtualUI before 3.0 allows remote attackers to enumerate Windows users. The /changePassword endpoint returns different, configuration-dependent messages for nonexistent and valid username values. No authentication or user interaction is required; the disclosed account names can support later password-guessing attempts.
The record
- CVE
- CVE-2021-44848
- Published
- Dec 13, 2021
- Updated
- Aug 4, 2024
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-203, T1087.001
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Dec 13, 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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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.
Public exploit references
- Unauthenticated user-enumeration requestproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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