CVE-2021-28544
Last modified
CVE-2021-28544 is a medium-severity vulnerability rated 4.3/10 on the CVSS scale. Apache Subversion SVN authz protected copyfrom paths regression Subversion servers reveal 'copyfrom' paths that should be hidden according to configured path-based authorization (authz) rules. When a node has been copied from a protected location, users with access to the copy can see the 'copyfrom' path of the original. EPSS estimates a 2.70% chance of exploitation in the next 30 days.
Description
Apache Subversion SVN authz protected copyfrom paths regression Subversion servers reveal 'copyfrom' paths that should be hidden according to configured path-based authorization (authz) rules. When a node has been copied from a protected location, users with access to the copy can see the 'copyfrom' path of the original. This also reveals the fact that the node was copied. Only the 'copyfrom' path is revealed; not its contents. Both httpd and svnserve servers are vulnerable.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Apache | Subversion | >= 1.10.0, <= 1.14.1 |
| Debian | Debian Linux | 10.0 |
| Debian | Debian Linux | 11.0 |
| Fedoraproject | Fedora | 35 |
| Fedoraproject | Fedora | 36 |
| Apple | Macos | >= 12.0, < 12.5 |
References
- http://seclists.org/fulldisclosure/2022/Jul/18Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PZ4ARNGLMGYBKYDX2B7DRBNMF6EH3A6R/Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YJPMCWCGWBN3QWCDVILWQWPC75RR67LT/Mailing List, Third Party Advisory
- https://subversion.apache.org/security/CVE-2021-28544-advisory.txtExploit, Patch, Vendor Advisory
- https://support.apple.com/kb/HT213345Third Party Advisory
- https://www.debian.org/security/2022/dsa-5119Third Party Advisory
- http://seclists.org/fulldisclosure/2022/Jul/18Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PZ4ARNGLMGYBKYDX2B7DRBNMF6EH3A6R/Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YJPMCWCGWBN3QWCDVILWQWPC75RR67LT/Mailing List, Third Party Advisory
- https://subversion.apache.org/security/CVE-2021-28544-advisory.txtExploit, Patch, Vendor Advisory
- https://support.apple.com/kb/HT213345Third Party Advisory
- https://www.debian.org/security/2022/dsa-5119Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
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