CVE Vulnerabilities

CVE-2014-1875

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

Published: Oct 06, 2014 | Modified: Aug 29, 2017
CVSS 3.x
N/A
Source:
NVD
CVSS 2.x
3.6 LOW
AV:L/AC:L/Au:N/C:N/I:P/A:P
RedHat/V2
RedHat/V3
Ubuntu

The Capture::Tiny module before 0.24 for Perl allows local users to write to arbitrary files via a symlink attack on a temporary file.

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
Capture-tiny Cspan 0.20 0.20
Capture-tiny Cspan 0.22 0.22
Capture-tiny Cspan 0.21 0.21
Capture-tiny Cspan * 0.23

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