CVE-2001-1013
Apache on Red Hat Linux with with the UserDir directive enabled generates different error codes...
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.
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2001-1013- CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:P/I:N/A:N - Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2001-1013- Updated
- 2026-11-02
EUVDEUVD-2001-0994 No score
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.
- Record
EUVD-2001-0994- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-ww47-4c2p-jhj9 No score
Apache on Red Hat Linux with with the UserDir directive enabled generates different error codes...
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.
- Record
GHSA-ww47-4c2p-jhj9- Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Exploit-DB | RedHat Linux 7.0 Apache - Remote Username Enumeration | 2001-09-12 |
| Metasploit | Apache "mod_userdir" User Enumeration |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, Exploit-DB, GitHub Advisories, Metasploit, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2001-1013 is a medium vulnerability (CVSS 5.0) in Redhat Linux, published September 12, 2001. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 65.6%, the 99th percentile. No source names a fixed version.
References
securityfocus.com/bid/3335
archives.neohapsis.com/archives/vuln-dev/2000-q3/0094.html
exchange.xforce.ibmcloud.com/vulnerabilities/7129
nvd.nist.gov/vuln/detail/CVE-2001-1013
github.com/advisories/GHSA-ww47-4c2p-jhj9