CVE-2001-1013 json
Apache on Red Hat Linux with with the UserDir directive enabled generates different error codes when a username exists and there is no publ…
published 2001-09-12 25 y ago modified 2026-06-16 4 mo ago also EUVD-2001-0994
- cvss
- 5.0
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 65.6%
- EPSS 65.6% chance of exploitation in 30 days, percentile 99.2%
- public exploits
- 2
- Metasploit, Exploit-DB
Summary
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.
Patch / fix
- securityfocus.com/bid/3335 advisory
Timeline
- First public exploit (EDB-21112)
- Published
Exploit prediction
65.56% chance of exploitation in the next 30 days, higher than 99.2% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- Metasploit auxiliary/scanner/http/apache_userdir_enum Apache "mod_userdir" User Enumeration metasploit auxiliary, normal rank
- EDB-21112 RedHat Linux 7.0 Apache - Remote Username Enumeration remote, 2001-09-12
- securityfocus.com http://www.securityfocus.com/bid/3335 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:P/I:N/A:N |
References
-
securityfocus.com
/bid/3335
vdb-entry, exploit, patch, vendor-advisory
-
securityfocus.com
/archive/1/213667
mailing-list, vendor-advisory
-
archives.neohapsis.com
/archives/vuln-dev/2000-q3/0094.html
mailing-list, vendor-advisory
-
archives.neohapsis.com
/archives/vuln-dev/2000-q3/0083.html
mailing-list, vendor-advisory
-
exchange.xforce.ibmcloud.com
/vulnerabilities/7129
vdb-entry
-
archives.neohapsis.com
/archives/vuln-dev/2000-q3/0087.html
mailing-list
Sources
- CVE List CVE-2001-1013
- NVD CVE-2001-1013
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