CVE-2015-6833

Description

Directory traversal vulnerability in the PharData class in PHP before 5.4.44, 5.5.x before 5.5.28, and 5.6.x before 5.6.12 allows remote attackers to write to arbitrary files via a .. (dot dot) in a ZIP archive entry that is mishandled during an extractTo call.

CVSS Metrics

• v3.0•HIGH•Score: 7.5CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
• v2.0•MEDIUM•Score: 5AV:N/AC:L/Au:N/C:N/I:P/A:N

EPSS Trends

Current EPSS score: 0.40%• Percentile: 61%

Techniques & Countermeasures

• CWE-22•Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

  The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

Affected Systems

• Unknown•PHP

  ≤ 5.4.43 | 5.5.0 | 5.5.0:alpha1 | 5.5.0:alpha2 | 5.5.0:alpha3 | 5.5.0:alpha4 | 5.5.0:alpha5 | 5.5.0:alpha6 | 5.5.0:beta1 | 5.5.0:beta2 | 5.5.0:beta3 | 5.5.0:beta4 | 5.5.0:rc1 | 5.5.0:rc2 | 5.5.1 | 5.5.2 | 5.5.3 | 5.5.4 | 5.5.5 | 5.5.6 | 5.5.7 | 5.5.8 | 5.5.9 | 5.5.10 | 5.5.11 | 5.5.12 | 5.5.13 | 5.5.14 | 5.5.18 | 5.5.19 | 5.5.20 | 5.5.21 | 5.5.22 | 5.5.23 | 5.5.24 | 5.5.25 | 5.5.26 | 5.5.27 | 5.6.0:alpha1 | 5.6.0:alpha2 | 5.6.0:alpha3 | 5.6.0:alpha4 | 5.6.0:alpha5 | 5.6.0:beta1 | 5.6.0:beta2 | 5.6.0:beta3 | 5.6.0:beta4 | 5.6.1 | 5.6.2 | 5.6.3 | 5.6.4 | 5.6.5 | 5.6.6 | 5.6.7 | 5.6.8 | 5.6.9 | 5.6.10 | 5.6.11

References (5)

• http://www.debian.org/security/2015/dsa-3344
• https://bugs.php.net/bug.php?id=70019
• http://www.openwall.com/lists/oss-security/2015/08/19/3
• http://www.php.net/ChangeLog-5.php
• https://security.gentoo.org/glsa/201606-10