CVE-2001-1013

Severity: medium (CVSS 5.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 65.6% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2001-09-12 · updated 2026-06-16

Description

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.

Affected products

RedHat Linux: 7.0

References

http://archives.neohapsis.com/archives/vuln-dev/2000-q3/0083.html
http://archives.neohapsis.com/archives/vuln-dev/2000-q3/0087.html
http://archives.neohapsis.com/archives/vuln-dev/2000-q3/0094.html
http://www.securityfocus.com/archive/1/213667
http://www.securityfocus.com/bid/3335
https://exchange.xforce.ibmcloud.com/vulnerabilities/7129
http://archives.neohapsis.com/archives/vuln-dev/2000-q3/0083.html
http://archives.neohapsis.com/archives/vuln-dev/2000-q3/0087.html
http://archives.neohapsis.com/archives/vuln-dev/2000-q3/0094.html
http://www.securityfocus.com/archive/1/213667
http://www.securityfocus.com/bid/3335
https://exchange.xforce.ibmcloud.com/vulnerabilities/7129

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