Apache UserDir Vulnerability: Username Enumeration via Error Codes

CVE-2001-1013 · MEDIUM Severity

AV:N/AC:L/AU:N/C:P/I:N/A:N

Apache on Red Hat Linux with with the UserDir directive enabled generates different error codes when a username exists and there is no public_html directory and when the username does not exist, which could allow remote attackers to determine valid usernames on the server.

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