PHPMailer < 5.2.20 - Remote Code Execution

by CIRT Team

Description:

CVE-2016-10033: The mailSend function in the isMail transport in PHPMailer before 5.2.18 might allow remote attackers to pass extra parameters to the mail command and consequently execute arbitrary code via a \” (backslash double quote) in a crafted Sender property.

CVE-2016-10045: The isMail transport in PHPMailer before 5.2.20 might allow remote attackers to pass extra parameters to the mail command and consequently execute arbitrary code by leveraging improper interaction between the escapeshellarg function and internal escaping performed in the mail function in PHP.

NOTE: This vulnerability exists because of an incorrect fix for CVE-2016-10033.

Impact: An attacker can exploit this issue to execute arbitrary code within the context of the application. Failed exploit attempts will result in a denial-of-service condition.

Mitigation: Vendor has released patch version.

Reference URL’s:

• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-10033
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-10045
• http://www.securityfocus.com/bid/95108/info
• https://github.com/PHPMailer/PHPMailer/blob/master/SECURITY.md

CIRT Team

Recommended Posts

Active Exploitation of Critical F5 BIG – IP Vulnerability (CVE–2023-46747) Uncovered in Bangladesh

06 Nov 2024 - Security Advisories & Alerts

Emerging Threat_Stealer Malware (Lumma C2) Campaign with fake CAPTCHA pages

08 Oct 2024 - Security Advisories & Alerts

Detection of Fog Ransomware Footprint in Cyber Space of Bangladesh

12 Sep 2024 - Security Advisories & Alerts