CVE Vulnerabilities

CVE-2015-5705

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

Published: Sep 06, 2017 | Modified: Sep 13, 2017
CVSS 3.x
7.5
HIGH
Source:
NVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CVSS 2.x
5 MEDIUM
AV:N/AC:L/Au:N/C:N/I:P/A:N
RedHat/V2
RedHat/V3
Ubuntu
MEDIUM

Argument injection vulnerability in devscripts before 2.15.7 allows remote attackers to write to arbitrary files via a crafted symlink and crafted filename.

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
Devscripts Devscripts_devel_team * 2.15.6 (including)
Devscripts 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