CVE Vulnerabilities

CVE-2000-0715

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

Published: Oct 20, 2000 | Modified: Sep 10, 2008
CVSS 3.x
N/A
Source:
NVD
CVSS 2.x
2.1 LOW
AV:L/AC:L/Au:N/C:N/I:P/A:N
RedHat/V2
RedHat/V3
Ubuntu

DiskCheck script diskcheck.pl in Red Hat Linux 6.2 allows local users to create or overwrite arbitrary files via a symlink attack on a temporary file.

Weakness

The software 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
Diskcheck Kirk_bauer 3.1.1 3.1.1
Linux Conectiva 5.0 5.0
Linux Conectiva 5.1 5.1

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