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Vulnerability Details : CVE-2016-10045

The isMail transport in PHPMailer before 5.2.20, when the Sender property is not set, 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. NOTE: this vulnerability exists because of an incorrect fix for CVE-2016-10033.
Publish Date : 2016-12-30 Last Update Date : 2017-01-06
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- CVSS Scores & Vulnerability Types

CVSS Score
6.8
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Medium (The access conditions are somewhat specialized. Some preconditions must be satistified to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Execute Code
CWE ID 77

- Products Affected By CVE-2016-10045

# Product Type Vendor Product Version Update Edition Language
1 Application Phpmailer Project Phpmailer 5.2.19 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Phpmailer Project Phpmailer 1

- References For CVE-2016-10045

https://github.com/PHPMailer/PHPMailer/wiki/About-the-CVE-2016-10033-and-CVE-2016-10045-vulnerabilities CONFIRM
https://github.com/PHPMailer/PHPMailer/releases/tag/v5.2.20 CONFIRM
https://legalhackers.com/advisories/PHPMailer-Exploit-Remote-Code-Exec-CVE-2016-10045-Vuln-Patch-Bypass.html
https://www.exploit-db.com/exploits/40969/
EXPLOIT-DB 40969
http://www.securityfocus.com/bid/95130
BID 95130 PHPMailer CVE-2016-10045 Incomplete Fix Remote Code Execution Vulnerability Release Date:2017-01-16
https://developer.joomla.org/security-centre/668-20161205-phpmailer-security-advisory.html CONFIRM
http://seclists.org/fulldisclosure/2016/Dec/81
FULLDISC 20161227 PHPMailer < 5.2.20 Remote Code Execution PoC 0day Exploit (CVE-2016-10045) (Bypass of the CVE-2016-1033 patch)
http://openwall.com/lists/oss-security/2016/12/28/1
MLIST [oss-security] 20161228 Re: PHPMailer < 5.2.18 Remote Code Execution [updated advisory] [CVE-2016-10033]
http://www.securityfocus.com/archive/1/archive/1/539967/100/0/threaded
BUGTRAQ 20161228 PHPMailer < 5.2.20 Remote Code Execution PoC 0day Exploit (CVE-2016-10045) (Bypass of the CVE-2016-1033 patch)
http://www.rapid7.com/db/modules/exploit/multi/http/phpmailer_arg_injection
http://packetstormsecurity.com/files/140350/PHPMailer-Sendmail-Argument-Injection.html
http://packetstormsecurity.com/files/140286/PHPMailer-Remote-Code-Execution.html

- Metasploit Modules Related To CVE-2016-10045

PHPMailer Sendmail Argument Injection
PHPMailer versions up to and including 5.2.19 are affected by a vulnerability which can be leveraged by an attacker to write a file with partially controlled contents to an arbitrary location through injection of arguments that are passed to the sendmail binary. This module writes a payload to the web root of the webserver before then executing it with an HTTP request. The user running PHPMailer must have write access to the specified WEB_ROOT directory and successful exploitation can take a few minutes.
Module type : exploit Rank : manual Platforms : PHP


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