SAM Pro (Free Edition) < 1.9.7.69 & Simple Ads Manager <= 2.10.0.130 & SAM Pro Lite < 1.9.0.53 - Local/Remote File Inclusion

2016-10-10 00:00
portfob.ru

Strategic Overview

Status
Unpatched
Affected Plugin
Simple Ads Manager
Affected Version
<= 2.10.0.130
CVSS
8.8High
Weakness type
CWE-98 · Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion')
CVE
CVE pending
View all Simple Ads Manager vulnerabilities

At a glance

This record tracks a high-severity Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') vulnerability in the Simple Ads Manager WordPress plugin, affecting versions <= 2.10.0.130. It carries a CVSS score of 8.8 (reachable over the network; low attack complexity; high confidentiality, integrity, availability impact). No fixed release has been reported yet; treat installations running this software as exposed. Disclosed October 2016, reported by portfob.ru.

Vulnerability Overview

The SAM Pro (Free Edition) plugin for WordPress is vulnerable to Local File Inclusion in versions up to, and including, 1.9.7.68 via the 'wap' parameter. This allows authenticated attackers to include and execute arbitrary files on the server, allowing the execution of any PHP code in those files. This can be used to bypass access controls, obtain sensitive data, or achieve code execution in cases where images and other “safe” file types can be uploaded and included. In certain configurations, the plugin is also vulnerable to Remote File Inclusion via the same parameter. This allows authenticated attackers to include remote files on the server, resulting in code execution.

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 interaction from a victim user. A successful exploit has high impact on confidentiality, integrity, availability — full site compromise territory.

CWE-98: Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion')

Simple Ads Manager <= 2.10.0.130 carries this weakness at wap, and reaching it takes a caller who can reach the endpoint. PHP file inclusion means a path used by include or require is built from request data, so the file that gets executed is under the caller's influence.

Including an attacker-influenced file executes its contents, which is why this class is routinely chained with an upload or log-poisoning step to reach code execution. No fixed build of this plugin is recorded for Simple Ads Manager yet, so installs running <= 2.10.0.130 stay exposed until the vendor ships one.

Remediation

No known patch available. Please review the vulnerability's details in depth and employ mitigations based on your organization's risk tolerance. It may be best to uninstall the affected software and find a replacement.

How does WordSec protect against this?

The attempt arrives as an ordinary request to Simple Ads Manager: WordSec's web application firewall inspects request payloads before WordPress loads them. Classes like this one can leave something behind, so the staged malware scanner is the second half: it looks for dropped files and modified code rather than for the request that created them. No patched version is recorded yet, which is the case where a filtering layer matters most, because there is nothing to update to.

  • Firewall
  • Scanner
  • Alerts

External References

https://www.wordfence.com/threat-intel/vulnerabilities/id/730a3cde-bcbd-4d60-80bb-3944cc5386e5

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Vulnerability data © Defiant, Inc., provided under the Wordfence Intelligence T&C