Vulnerabilities
Misconfiguration
Runtime Security
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CVE Vulnerabilities

CVE-2015-1038

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

Published: Jan 21, 2015 | Modified: Sep 08, 2017
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
Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2015-1038
CWEhttps://cwe.mitre.org/data/definitions/59.html

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

Name Vendor Start Version End Version
Fedora Fedoraproject 22 (including) 22 (including)
Fedora Fedoraproject 23 (including) 23 (including)
P7zip Ubuntu lucid *
P7zip Ubuntu precise *
P7zip Ubuntu trusty *
P7zip Ubuntu utopic *
P7zip Ubuntu vivid *

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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