medium
4.3
CWE
200
Advisory Published
Updated

CVE-2021-28544: Apache Subversion SVN authz protected copyfrom paths regression

First published: Tue Apr 12 2022(Updated: )

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.

Credit: Evgeny Kotkov visualsvn.com Evgeny Kotkov visualsvn.com Evgeny Kotkov visualsvn.com Evgeny Kotkov visualsvn.com security@apache.org

Affected SoftwareAffected VersionHow to fix
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
<12.5
12.5
debian/subversion
1.10.4-1+deb10u3
1.14.1-3+deb11u1
1.14.2-4

Remedy

https://subversion.apache.org/security/CVE-2021-28544-advisory.txt

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Peer vulnerabilities

(Found alongside the following vulnerabilities)

Frequently Asked Questions

  • What is CVE-2021-28544?

    CVE-2021-28544 refers to multiple issues in subversion that have been addressed through an update.

  • How can CVE-2021-28544 affect me?

    If you are using subversion on macOS Monterey version 12.5 or earlier, you may be affected by CVE-2021-28544.

  • How do I mitigate the impact of CVE-2021-28544?

    To mitigate the impact of CVE-2021-28544, update your subversion software to the latest version available.

  • Where can I find more information about CVE-2021-28544?

    You can find more information about CVE-2021-28544 in the Apple security advisory at the following link: https://support.apple.com/en-us/HT213345

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