CVE Vulnerabilities

CVE-2015-1038

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

Published: Jan 21, 2015 | Modified: Apr 12, 2025
CVSS 3.x
N/A
Source:
NVD
CVSS 2.x
5.8 MEDIUM
AV:N/AC:M/Au:N/C:N/I:P/A:P
RedHat/V2
RedHat/V3
Ubuntu
MEDIUM
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p7zip 9.20.1 allows remote attackers to write to arbitrary files via a symlink attack in an archive.

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
FedoraFedoraproject22 (including)22 (including)
FedoraFedoraproject23 (including)23 (including)
P7zipUbuntuesm-infra-legacy/trusty*
P7zipUbuntulucid*
P7zipUbuntuprecise*
P7zipUbuntutrusty*
P7zipUbuntutrusty/esm*
P7zipUbuntuutopic*
P7zipUbuntuvivid*

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