CyberArk Identity 21.5.131, when handling an invalid authentication attempt, sometimes reveals whether the username is valid. In certain authentication policy configurations with MFA, the API response length can be used to differentiate between a valid user and an invalid one (aka Username Enumeration). Response differentiation enables attackers to enumerate usernames of valid application users. Attackers can use this information to leverage brute-force and dictionary attacks in order to discover valid account information such as passwords.
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Affected Vendors & Products
References
History
No history.
MITRE
Status: PUBLISHED
Assigner: INCD
Published: 2021-09-01T12:35:08
Updated: 2024-08-04T01:16:02.865Z
Reserved: 2021-07-21T00:00:00
Link: CVE-2021-37151
Vulnrichment
No data.
NVD
Status : Modified
Published: 2021-09-01T13:15:08.367
Modified: 2024-11-21T06:14:44.197
Link: CVE-2021-37151
Redhat
No data.