CVE-2016-10045: Command Injection
First published: Wed Dec 28 2016(Updated: )
### Impact 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. This issue really emphasises that it's worth avoiding the built-in PHP `mail()` function entirely. ### Patches Fixed in 5.2.20 ### Workarounds Send via SMTP to localhost instead of calling the `mail()` function. ### References https://nvd.nist.gov/vuln/detail/CVE-2016-10045 See also https://nvd.nist.gov/vuln/detail/CVE-2016-10033 ### For more information If you have any questions or comments about this advisory: * Open a private issue in [the PHPMailer project](https://github.com/PHPMailer/PHPMailer)
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| composer/phpmailer/phpmailer | >=5.0.0<5.2.20 | 5.2.20 |
| composer/phpmailer/phpmailer | >=5.0.0<5.2.20 | 5.2.20 |
| Phpmailer Project Phpmailer | <5.2.20 | |
| WordPress WordPress | <=4.7 | |
| Joomla Joomla\! | >=1.5.0<=3.6.5 | |
| debian/libphp-phpmailer | 6.2.0-2 6.6.3-1 6.9.1-1 |
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Reference Links
- https://github.com/PHPMailer/PHPMailer/releases/tag/v5.2.20
- https://github.com/PHPMailer/PHPMailer/security/advisories/GHSA-4pc3-96mx-wwc8
- https://nvd.nist.gov/vuln/detail/CVE-2016-10045
- https://developer.joomla.org/security-centre/668-20161205-phpmailer-security-advisory.html
- https://github.com/FriendsOfPHP/security-advisories/blob/master/phpmailer/phpmailer/CVE-2016-10045.yaml
- 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-2016-10045-Vuln-Patch-Bypass.html
- https://www.exploit-db.com/exploits/40969/
- https://www.exploit-db.com/exploits/40986/
- https://www.exploit-db.com/exploits/42221/
- http://openwall.com/lists/oss-security/2016/12/28/1
- http://packetstormsecurity.com/files/140286/PHPMailer-Remote-Code-Execution.html
- http://packetstormsecurity.com/files/140350/PHPMailer-Sendmail-Argument-Injection.html
- http://seclists.org/fulldisclosure/2016/Dec/81
- http://www.rapid7.com/db/modules/exploit/multi/http/phpmailer_arg_injection
- http://www.securityfocus.com/archive/1/539967/100/0/threaded
- http://www.securityfocus.com/bid/95130
- http://www.securitytracker.com/id/1037533
- https://github.com/advisories/GHSA-4pc3-96mx-wwc8 (Advisory)
- https://launchpad.net/bugs/cve/CVE-2016-10045
- https://security-tracker.debian.org/tracker/CVE-2016-10045
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-10045
- https://ubuntu.com/security/CVE-2016-10045
Frequently Asked Questions
What is CVE-2016-10045?
CVE-2016-10045 is a vulnerability that allows remote attackers to execute arbitrary code by passing extra parameters to the `mail` command in PHPMailer before version 5.2.20.
How severe is CVE-2016-10045?
CVE-2016-10045 has a severity rating of 9.8, which is considered critical.
Which software is affected by CVE-2016-10045?
The affected software includes PHPMailer versions prior to 5.2.20 and certain versions of libphp-phpmailer, WordPress, and Joomla.
How can I fix CVE-2016-10045?
To fix CVE-2016-10045, upgrade PHPMailer to version 5.2.20 or newer, or apply the recommended patches for the affected software packages.
Where can I find more information about CVE-2016-10045?
You can find more information about CVE-2016-10045 on the official GitHub page of PHPMailer and the National Vulnerability Database (NVD) website.
- collector/friends-of-php
- collector/github-advisory-latest
- alias/GHSA-4pc3-96mx-wwc8
- alias/CVE-2016-10045
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- version/joomla joomla\!/3.6.5
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