Attacker Value
Very High
(1 user assessed)
Exploitability
Unknown
(1 user assessed)
User Interaction
None
Privileges Required
Low
Attack Vector
Network
2

CVE-2021-28544

Disclosure Date: April 12, 2022
Add MITRE ATT&CK tactics and techniques that apply to this CVE.

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.

CVSS V3 Severity and Metrics
Base Score:
4.3 Medium
Impact Score:
1.4
Exploitability Score:
2.8
Vector:
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
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

General Information

Vendors

  • apache,
  • apple,
  • debian,
  • fedoraproject

Products

  • debian linux 10.0,
  • debian linux 11.0,
  • fedora 35,
  • fedora 36,
  • macos,
  • subversion
Technical Analysis