Multiple vulnerabilities in in phpmailer.sourceforge.net PHPMailer
| Risk | High |
| Patch available | YES |
| Number of vulnerabilities | 2 |
| CVE-ID | CVE-2016-10033 CVE-2016-10045 |
| CWE-ID | CWE-94 |
| Exploitation vector | Network |
| Public exploit |
Public exploit code for vulnerability #1 is available. Public exploit code for vulnerability #2 is available. |
| Vulnerable software Subscribe |
PHPMailer Web applications / Other software |
| Vendor | phpmailer.sourceforge.net |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
1) Remote code injection
EUVDB-ID: #VU3118
Risk: High
CVSSv3.1: 9.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:F/RL:O/RC:C]
CVE-ID: CVE-2016-10033
CWE-ID:
CWE-94 - Improper Control of Generation of Code ('Code Injection')
Exploit availability: Yes
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to insufficient sanitization of user-supplied input passed via specially crafted “From” address to mailSend() function. A remote attacker can use backslashed double quote character (e.g. \") to pass additional commands to original mail command and execute them with privileges of the current web server user.
Successful exploitation of the vulnerability may result in system compromise.
Install the latest version 5.2.21 from vendor's website.
PHPMailer: 5.2.2 - 5.2.17
External linkshttp://packetstormsecurity.com/files/140291/PHPMailer-Remote-Code-Execution.html
http://seclists.org/fulldisclosure/2016/Dec/78
http://www.securityfocus.com/archive/1/archive/1/539963/100/0/threaded
http://www.securityfocus.com/bid/95108
http://developer.joomla.org/security-centre/668-20161205-phpmailer-security-advisory.html
http://github.com/PHPMailer/PHPMailer/releases/tag/v5.2.18
http://github.com/PHPMailer/PHPMailer/wiki/About-the-CVE-2016-10033-and-CVE-2016-10045-vulnerabilit...
http://legalhackers.com/advisories/PHPMailer-Exploit-Remote-Code-Exec-CVE-2016-10033-Vuln.html
http://www.drupal.org/psa-2016-004
http://www.exploit-db.com/exploits/40968/
http://www.exploit-db.com/exploits/40970/
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability. However, a fully functional exploit for this vulnerability is available.
2) Remote code injection
EUVDB-ID: #VU3119
Risk: High
CVSSv3.1: 9.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:F/RL:O/RC:C]
CVE-ID: CVE-2016-10045
CWE-ID:
CWE-94 - Improper Control of Generation of Code ('Code Injection')
Exploit availability: Yes
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists in PHPMailer due to insufficient sanitization of user-supplied input, when Sender property is not set. A remote attacker can use backslashed double quote character (e.g. \”) to pass additional commands to original mail command and execute them with privileges of the current web server user.
Successful exploitation of the vulnerability may result in system compromise.
Note: this vulnerability exists due to incorrect fix for vulnerability SB2016122601 (CVE-2016-10033)
Install the latest version 5.2.21 from vendor's website.
PHPMailer: 5.2.2 - 5.2.17
External linksQ & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability. However, a fully functional exploit for this vulnerability is available.
