CVE-2014-8799

DukaPress < 2.5.4 - Directory Traversal

2014-11-13 00:00
Kacper Szurek

Strategic Overview

Status
Patched in 2.5.4
Affected Plugin
DukaPress
Affected Version
< 2.5.4
CVSS
7.5High
Weakness type
CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CVE
CVE-2014-8799
View all DukaPress vulnerabilities

At a glance

CVE-2014-8799 is a high-severity Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in the DukaPress WordPress plugin, affecting versions < 2.5.4. It carries a CVSS score of 7.5 (reachable over the network; low attack complexity; high confidentiality impact). Exploitation requires no authentication. The issue is fixed in version 2.5.4; sites on affected versions should update now. Disclosed November 2014, reported by Kacper Szurek.

Vulnerability Overview

Directory traversal vulnerability in the dp_img_resize function in php/dp-functions.php in the DukaPress plugin before 2.5.4 for WordPress allows remote attackers to read arbitrary files via a .. (dot dot) in the src parameter to lib/dp_image.php.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no privileges on the target site, and no interaction from a victim user. A successful exploit has high impact on confidentiality.

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

Reaching this weakness in DukaPress < 2.5.4 takes a caller who can reach the endpoint. Path traversal happens when user-controlled text is used to build a filesystem path without being constrained to an intended directory, so sequences like ../ walk the resolved path somewhere else.

Depending on the operation, it means reading files outside the intended folder — wp-config.php being the usual target — or writing to and deleting paths the web server can touch. For DukaPress the fix is 2.5.4: builds < 2.5.4 are affected, anything from 2.5.4 onward is not.

Remediation

Update to version 2.5.4, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to DukaPress: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: DukaPress 2.5.4 closes this, and updating the plugin is the step that ends it.

  • Firewall
  • Alerts

External References

Related records

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