Vulnerabilities
Misconfiguration
Compliance
CVE Vulnerabilities

CVE-2010-3691

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

Published: Oct 07, 2010 | Modified: Apr 11, 2025
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
MEDIUM
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2010-3691
CWEhttps://cwe.mitre.org/data/definitions/59.html

PGTStorage/pgt-file.php in phpCAS before 1.1.3, when proxy mode is enabled, allows local users to overwrite 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

NameVendorStart VersionEnd Version
PhpcasApereo*1.1.2 (including)
PhpcasApereo0.2 (including)0.2 (including)
PhpcasApereo0.3 (including)0.3 (including)
PhpcasApereo0.3.1 (including)0.3.1 (including)
PhpcasApereo0.3.2 (including)0.3.2 (including)
PhpcasApereo0.4 (including)0.4 (including)
PhpcasApereo0.4.1 (including)0.4.1 (including)
PhpcasApereo0.4.8 (including)0.4.8 (including)
PhpcasApereo0.4.9 (including)0.4.9 (including)
PhpcasApereo0.4.10 (including)0.4.10 (including)
PhpcasApereo0.4.11 (including)0.4.11 (including)
PhpcasApereo0.4.12 (including)0.4.12 (including)
PhpcasApereo0.4.13 (including)0.4.13 (including)
PhpcasApereo0.4.14 (including)0.4.14 (including)
PhpcasApereo0.4.15 (including)0.4.15 (including)
PhpcasApereo0.4.16 (including)0.4.16 (including)
PhpcasApereo0.4.17 (including)0.4.17 (including)
PhpcasApereo0.4.18 (including)0.4.18 (including)
PhpcasApereo0.4.19 (including)0.4.19 (including)
PhpcasApereo0.4.20 (including)0.4.20 (including)
PhpcasApereo0.4.21 (including)0.4.21 (including)
PhpcasApereo0.4.22 (including)0.4.22 (including)
PhpcasApereo0.4.23 (including)0.4.23 (including)
PhpcasApereo0.5.0 (including)0.5.0 (including)
PhpcasApereo0.5.1 (including)0.5.1 (including)
PhpcasApereo0.6.0 (including)0.6.0 (including)
PhpcasApereo1.0.0 (including)1.0.0 (including)
PhpcasApereo1.0.1 (including)1.0.1 (including)
PhpcasApereo1.1.0 (including)1.1.0 (including)
PhpcasApereo1.1.1 (including)1.1.1 (including)
GlpiUbuntuhardy*
GlpiUbuntujaunty*
GlpiUbuntukarmic*
GlpiUbuntulucid*
GlpiUbuntumaverick*
GlpiUbuntunatty*
GlpiUbuntuoneiric*
GlpiUbuntuquantal*
GlpiUbunturaring*
GlpiUbuntusaucy*
GlpiUbuntuupstream*
GlpiUbuntuutopic*
GlpiUbuntuvivid*
GlpiUbuntuwily*
MoodleUbuntudapper*
MoodleUbuntuhardy*
MoodleUbuntujaunty*
MoodleUbuntukarmic*
MoodleUbuntulucid*
MoodleUbuntumaverick*
MoodleUbuntunatty*
MoodleUbuntuoneiric*

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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