Ecosyste.ms: Advisories

Security Advisories: MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLTVmMzctZ3h2aC0yM3Y2

Remote code execution in PHPMailer

Impact

The mailSend function in the default 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.

Patches

Fixed in 5.2.18

Workarounds

Filter and validate user input before passing it to internal functions.

References

https://nvd.nist.gov/vuln/detail/CVE-2016-10033
Related to a follow-on issue in https://nvd.nist.gov/vuln/detail/CVE-2016-10045

For more information

If you have any questions or comments about this advisory:

• Open a private issue in the PHPMailer project

Permalink: https://github.com/advisories/GHSA-5f37-gxvh-23v6
JSON: https://advisories.ecosyste.ms/api/v1/advisories/MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLTVmMzctZ3h2aC0yM3Y2
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Critical
Classification: General
Published: almost 5 years ago
Updated: over 1 year ago

CVSS Score: 9.8
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Percentage: 0.97146
EPSS Percentile: 0.99892

Identifiers: GHSA-5f37-gxvh-23v6, CVE-2016-10033
References:

• https://github.com/PHPMailer/PHPMailer/security/advisories/GHSA-5f37-gxvh-23v6
• https://nvd.nist.gov/vuln/detail/CVE-2016-10033
• https://developer.joomla.org/security-centre/668-20161205-phpmailer-security-advisory.html
• https://github.com/FriendsOfPHP/security-advisories/blob/master/phpmailer/phpmailer/CVE-2016-10033.yaml
• https://github.com/PHPMailer/PHPMailer/releases/tag/v5.2.18
• https://github.com/PHPMailer/PHPMailer/wiki/About-the-CVE-2016-10033-and-CVE-2016-10045-vulnerabilities
• https://legalhackers.com/advisories/PHPMailer-Exploit-Remote-Code-Exec-CVE-2016-10033-Vuln.html
• https://www.drupal.org/psa-2016-004
• https://www.exploit-db.com/exploits/40968/
• https://www.exploit-db.com/exploits/40969/
• https://www.exploit-db.com/exploits/40970/
• https://www.exploit-db.com/exploits/40974/
• https://www.exploit-db.com/exploits/40986/
• https://www.exploit-db.com/exploits/41962/
• https://www.exploit-db.com/exploits/41996/
• https://www.exploit-db.com/exploits/42024/
• https://www.exploit-db.com/exploits/42221/
• http://packetstormsecurity.com/files/140291/PHPMailer-Remote-Code-Execution.html
• http://packetstormsecurity.com/files/140350/PHPMailer-Sendmail-Argument-Injection.html
• http://seclists.org/fulldisclosure/2016/Dec/78
• http://www.rapid7.com/db/modules/exploit/multi/http/phpmailer_arg_injection
• http://www.securityfocus.com/archive/1/539963/100/0/threaded
• http://www.securityfocus.com/bid/95108
• http://www.securitytracker.com/id/1037533
• https://github.com/advisories/GHSA-5f37-gxvh-23v6

Repository: https://github.com/PHPMailer/PHPMailer
Blast Radius: 42.0

Affected Packages