CVE Vulnerabilities

CVE-2010-0792

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

Published: Mar 05, 2010 | Modified: Oct 10, 2018
CVSS 3.x
N/A
Source:
NVD
CVSS 2.x
1.9 LOW
AV:L/AC:M/Au:N/C:P/I:N/A:N
RedHat/V2
2.1 LOW
AV:L/AC:L/Au:N/C:P/I:N/A:N
RedHat/V3
Ubuntu
MEDIUM

fcrontab in fcron before 3.0.5 allows local users to read arbitrary files via a symlink attack on an unspecified 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
Fcron Thibault_godouet * 3.0.4 (including)
Fcron Thibault_godouet 0.8.0 (including) 0.8.0 (including)
Fcron Thibault_godouet 0.8.1 (including) 0.8.1 (including)
Fcron Thibault_godouet 0.8.2 (including) 0.8.2 (including)
Fcron Thibault_godouet 0.9.0 (including) 0.9.0 (including)
Fcron Thibault_godouet 0.9.1 (including) 0.9.1 (including)
Fcron Thibault_godouet 0.9.2.1 (including) 0.9.2.1 (including)
Fcron Thibault_godouet 0.9.3 (including) 0.9.3 (including)
Fcron Thibault_godouet 0.9.4 (including) 0.9.4 (including)
Fcron Thibault_godouet 0.9.5 (including) 0.9.5 (including)
Fcron Thibault_godouet 1.0.0 (including) 1.0.0 (including)
Fcron Thibault_godouet 1.0.1 (including) 1.0.1 (including)
Fcron Thibault_godouet 1.0.2 (including) 1.0.2 (including)
Fcron Thibault_godouet 1.0.3 (including) 1.0.3 (including)
Fcron Thibault_godouet 1.1.0 (including) 1.1.0 (including)
Fcron Thibault_godouet 1.1.1 (including) 1.1.1 (including)
Fcron Thibault_godouet 2.0.0 (including) 2.0.0 (including)
Fcron Thibault_godouet 2.0.1 (including) 2.0.1 (including)
Fcron Thibault_godouet 2.0.2 (including) 2.0.2 (including)
Fcron Thibault_godouet 2.1.0 (including) 2.1.0 (including)
Fcron Thibault_godouet 2.9.0 (including) 2.9.0 (including)
Fcron Thibault_godouet 2.9.1 (including) 2.9.1 (including)
Fcron Thibault_godouet 2.9.2 (including) 2.9.2 (including)
Fcron Thibault_godouet 2.9.3 (including) 2.9.3 (including)
Fcron Thibault_godouet 2.9.4 (including) 2.9.4 (including)
Fcron Thibault_godouet 2.9.5 (including) 2.9.5 (including)
Fcron Thibault_godouet 2.9.5.1 (including) 2.9.5.1 (including)
Fcron Thibault_godouet 2.9.6 (including) 2.9.6 (including)
Fcron Thibault_godouet 2.9.7 (including) 2.9.7 (including)
Fcron Thibault_godouet 3.0.0 (including) 3.0.0 (including)
Fcron Thibault_godouet 3.0.1 (including) 3.0.1 (including)
Fcron Thibault_godouet 3.0.2 (including) 3.0.2 (including)
Fcron Thibault_godouet 3.0.3 (including) 3.0.3 (including)
Fcron Thibault_godouet 3.0.3-rc1 (including) 3.0.3-rc1 (including)
Fcron Ubuntu dapper *
Fcron Ubuntu hardy *
Fcron Ubuntu intrepid *
Fcron Ubuntu jaunty *
Fcron Ubuntu karmic *
Fcron Ubuntu lucid *
Fcron Ubuntu maverick *
Fcron Ubuntu natty *
Fcron 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