CVE Vulnerabilities

CVE-2006-1247

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

Published: Apr 19, 2006 | Modified: Oct 18, 2018
CVSS 3.x
N/A
Source:
NVD
CVSS 2.x
3.3 LOW
AV:L/AC:M/Au:N/C:N/I:P/A:P
RedHat/V2
RedHat/V3
Ubuntu

rm_mlcache_file in bos.rte.install in AIX 5.1.0 through 5.3.0 allows local users to overwrite arbitrary files via a symlink attack on temporary files.

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
Aix Ibm 5.1 (including) 5.1 (including)
Aix Ibm 5.1l (including) 5.1l (including)
Aix Ibm 5.2 (including) 5.2 (including)
Aix Ibm 5.2.0.50 (including) 5.2.0.50 (including)
Aix Ibm 5.2.0.54 (including) 5.2.0.54 (including)
Aix Ibm 5.2.2 (including) 5.2.2 (including)
Aix Ibm 5.2_l (including) 5.2_l (including)
Aix Ibm 5.3 (including) 5.3 (including)
Aix Ibm 5.3.0 (including) 5.3.0 (including)
Aix Ibm 5.3.0.10 (including) 5.3.0.10 (including)
Aix Ibm 5.3.0.20 (including) 5.3.0.20 (including)
Aix Ibm 5.3_l (including) 5.3_l (including)
Aix Ibm 5.3_ml03 (including) 5.3_ml03 (including)

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