Vulnerabilities
Misconfiguration
Runtime Security
Compliance
CVE Vulnerabilities

CVE-2012-1088

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

Published: Feb 15, 2014 | Modified: Feb 13, 2023
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
1.9 LOW
AV:L/AC:M/Au:N/C:N/I:P/A:N
RedHat/V3
Ubuntu
NEGLIGIBLE
Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2012-1088
CWEhttps://cwe.mitre.org/data/definitions/59.html

iproute2 before 3.3.0 allows local users to overwrite arbitrary files via a symlink attack on a temporary file used by (1) configure or (2) examples/dhcp-client-script.

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
Iproute2 Iproute2_project * 3.2.0 (including)
Iproute2 Iproute2_project 3.0.0 (including) 3.0.0 (including)
Iproute2 Iproute2_project 3.1.0 (including) 3.1.0 (including)
Iproute Ubuntu hardy *
Iproute Ubuntu lucid *
Iproute Ubuntu maverick *
Iproute Ubuntu natty *
Iproute Ubuntu oneiric *
Iproute Ubuntu precise *
Iproute Ubuntu precise/esm *
Iproute Ubuntu quantal *
Iproute Ubuntu raring *
Iproute2 Ubuntu saucy *
Iproute2 Ubuntu upstream *
Iproute2 Ubuntu utopic *
Iproute2 Ubuntu vivid *
Iproute2 Ubuntu wily *

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

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