CVE Vulnerabilities

CVE-2014-9512

Improper Link Resolution Before File Access ('Link Following')

Published: Feb 12, 2015 | Modified: Jul 28, 2020
CVSS 3.x
N/A
Source:
NVD
CVSS 2.x
6.4 MEDIUM
AV:N/AC:L/Au:N/C:N/I:P/A:P
RedHat/V2
RedHat/V3
Ubuntu

rsync 3.1.1 allows remote attackers to write to arbitrary files via a symlink attack on a file in the synchronization path.

Weakness

The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.

Affected Software

Name Vendor Start Version End Version
Rsync Samba 3.1.1 (including) 3.1.1 (including)
Opensuse Opensuse 13.1 (including) 13.1 (including)
Opensuse Opensuse 13.2 (including) 13.2 (including)

Potential Mitigations

  • Follow the principle of least privilege when assigning access rights to entities in a software system.
  • Denying access to a file can prevent an attacker from replacing that file with a link to a sensitive file. Ensure good compartmentalization in the system to provide protected areas that can be trusted.

References