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CVE-2021-28544

Date: April 12, 2022

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.

Severity Score

Related Resources (14)

https://support.apple.com/kb/HT213345
https://security-tracker.debian.org/tracker/CVE-2021-28544
https://people.canonical.com/~ubuntu-security/cve/CVE-2021-28544
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PZ4ARNGLMGYBKYDX2B7DRBNMF6EH3A6R/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YJPMCWCGWBN3QWCDVILWQWPC75RR67LT/
https://nvd.nist.gov/vuln/detail/CVE-2021-28544
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YJPMCWCGWBN3QWCDVILWQWPC75RR67LT/
https://access.redhat.com/security/cve/CVE-2021-28544
https://subversion.apache.org/security/CVE-2021-28544-advisory.txt
https://www.debian.org/security/2022/dsa-5119
https://security.alpinelinux.org/vuln/CVE-2021-28544
http://seclists.org/fulldisclosure/2022/Jul/18
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PZ4ARNGLMGYBKYDX2B7DRBNMF6EH3A6R/
https://www.mend.io/vulnerability-database/CVE-2021-28544

Severity Score

Weakness Type (CWE)

Information Leak / Disclosure

CWE-200

Incorrect Authorization

CWE-863

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): LOW
Integrity (I): NONE
Availability (A): NONE

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): SINGLE
Confidentiality (C): PARTIAL
Integrity (I): NONE
Availability (A): NONE
Additional information:

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