User enumeration in Checkmk <=2.2.0p4 allows an authenticated attacker to enumerate usernames.
The product behaves differently or sends different responses under different circumstances in a way that is observable to an unauthorized actor, which exposes security-relevant information about the state of the product, such as whether a particular operation was successful or not.
Link | Tags |
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https://checkmk.com/werk/15890 | vendor advisory |