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CVE-2001-1013
Apache on Red Hat Linux with with the UserDir directive enabled generates different error codes when a username exists and there is no…
Medium5.0EPSS 65.6%
- Published
- Updated
- Reserved
- Assigned by
- mitre
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium5.0 | AV:N/AC:L/Au:N/C:P/I:N/A:N |
- EPSS (exploitation in 30 days)
- 65.6% · top 0.7% of all CVEs (2 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.0.
Weakness
- n/a
Affected products
n/a
- affected n/a
References (6)
- 3335 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- 20010912 Is there user Anna at your host ? (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- 20000707 Re: your mail (opens in a new tab)mailing-listx_refsource_VULN-DEVx_transferred
- 20000707 (no subject) (opens in a new tab)mailing-listx_refsource_VULN-DEVx_transferred
- linux-apache-username-exists(7129) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- 20000707 Re: apache and 404/404 status codes (opens in a new tab)mailing-listx_refsource_VULN-DEVx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Record last updated .