Vulnerabilities
Misconfiguration
Runtime Security
Compliance
CVE Vulnerabilities

CVE-2011-1408

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

Published: Oct 29, 2019 | Modified: Aug 18, 2020
CVSS 3.x
8.2
HIGH
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N
CVSS 2.x
6.4 MEDIUM
AV:N/AC:L/Au:N/C:P/I:P/A:N
RedHat/V2
RedHat/V3
Ubuntu
LOW
Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2011-1408
CWEhttps://cwe.mitre.org/data/definitions/59.html

ikiwiki before 3.20110608 allows remote attackers to hijack roots tty and run symlink attacks.

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
Ikiwiki Ikiwiki * 3.20110608 (excluding)
Ikiwiki Ubuntu hardy *
Ikiwiki Ubuntu lucid *
Ikiwiki Ubuntu maverick *
Ikiwiki Ubuntu natty *
Ikiwiki 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

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