Vulnerabilities
Misconfiguration
Compliance
CVE Vulnerabilities

CVE-2014-1938

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

Published: Nov 21, 2019 | Modified: Nov 21, 2024
CVSS 3.x
5.5
MEDIUM
Source:
NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS 2.x
2.1 LOW
AV:L/AC:L/Au:N/C:N/I:N/A:P
RedHat/V2
RedHat/V3
Ubuntu
LOW
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2014-1938
CWEhttps://cwe.mitre.org/data/definitions/59.html

python-rply before 0.7.4 insecurely creates 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

NameVendorStart VersionEnd Version
RplyRply_project*0.7.4 (excluding)
Python-rplyUbuntuartful*
Python-rplyUbuntuesm-apps/xenial*
Python-rplyUbuntutrusty*
Python-rplyUbuntuupstream*
Python-rplyUbuntuutopic*
Python-rplyUbuntuvivid*
Python-rplyUbuntuwily*
Python-rplyUbuntuxenial*
Python-rplyUbuntuyakkety*
Python-rplyUbuntuzesty*

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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