CVE Vulnerabilities

CVE-2008-5146

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

Published: Nov 18, 2008 | Modified: Nov 21, 2024
CVSS 3.x
N/A
Source:
NVD
CVSS 2.x
6.9 MEDIUM
AV:L/AC:M/Au:N/C:C/I:C/A:C
RedHat/V2
RedHat/V3
Ubuntu
NEGLIGIBLE

add-accession-numbers in ctn 3.0.6 allows local users to overwrite arbitrary files via a symlink attack on the /tmp/accession 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
Ctn Erl_wustl 3.0.6 (including) 3.0.6 (including)
Ctn Ubuntu artful *
Ctn Ubuntu bionic *
Ctn Ubuntu cosmic *
Ctn Ubuntu dapper *
Ctn Ubuntu devel *
Ctn Ubuntu disco *
Ctn Ubuntu eoan *
Ctn Ubuntu esm-apps/bionic *
Ctn Ubuntu esm-apps/focal *
Ctn Ubuntu esm-apps/jammy *
Ctn Ubuntu esm-apps/noble *
Ctn Ubuntu esm-apps/xenial *
Ctn Ubuntu focal *
Ctn Ubuntu groovy *
Ctn Ubuntu gutsy *
Ctn Ubuntu hardy *
Ctn Ubuntu hirsute *
Ctn Ubuntu impish *
Ctn Ubuntu intrepid *
Ctn Ubuntu jammy *
Ctn Ubuntu jaunty *
Ctn Ubuntu karmic *
Ctn Ubuntu kinetic *
Ctn Ubuntu lucid *
Ctn Ubuntu lunar *
Ctn Ubuntu mantic *
Ctn Ubuntu maverick *
Ctn Ubuntu natty *
Ctn Ubuntu noble *
Ctn Ubuntu oneiric *
Ctn Ubuntu oracular *
Ctn Ubuntu precise *
Ctn Ubuntu quantal *
Ctn Ubuntu raring *
Ctn Ubuntu saucy *
Ctn Ubuntu trusty *
Ctn Ubuntu utopic *
Ctn Ubuntu vivid *
Ctn Ubuntu wily *
Ctn Ubuntu xenial *
Ctn Ubuntu yakkety *
Ctn Ubuntu zesty *

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