CVE Vulnerabilities

CVE-2013-1429

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

Published: Nov 07, 2019 | Modified: Nov 07, 2023
CVSS 3.x
6.3
MEDIUM
Source:
NVD
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N
CVSS 2.x
4.3 MEDIUM
AV:N/AC:M/Au:N/C:P/I:N/A:N
RedHat/V2
RedHat/V3
Ubuntu
LOW

Lintian before 2.5.12 allows remote attackers to gather information about the host system using crafted symlinks.

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
Lintian Debian * 2.5.10.5 (excluding)
Lintian Debian 2.5.11 (including) 2.5.11 (including)
Lintian Ubuntu hardy *
Lintian Ubuntu lucid *
Lintian Ubuntu oneiric *
Lintian Ubuntu precise *
Lintian Ubuntu precise/esm *
Lintian Ubuntu quantal *
Lintian Ubuntu upstream *

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