CyberArk Identity versions up to and including 22.1 in the 'StartAuthentication' resource, exposes the response header 'X-CFY-TX-TM'. In certain configurations, that response header contains different, predictable value ranges which can be used to determine whether a user exists in the tenant.
The product uses insufficiently random numbers or values in a security context that depends on unpredictable numbers.
Link | Tags |
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https://fluidattacks.com/advisories/porter/ | third party advisory exploit |
https://docs.cyberark.com/Product-Doc/OnlineHelp/Idaptive/Latest/en/Content/ReleaseNotes/ReleaseNotes-Latest.htm | release notes vendor advisory |