PHPMailer up to 5.2.19 CVE-2016-10033 Patch command injection

CVSS Meta Temp Score
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CTI Interest Score
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8.2$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in PHPMailer up to 5.2.19. Impacted is an unknown function of the component CVE-2016-10033 Patch. The manipulation results in command injection. This vulnerability is cataloged as CVE-2016-10045. The attack may be launched remotely. Furthermore, there is an exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in PHPMailer up to 5.2.19. It has been classified as critical. Affected is an unknown functionality of the component CVE-2016-10033 Patch. The manipulation with an unknown input leads to a command injection vulnerability. CWE is classifying the issue as CWE-77. The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component. This is going to have an impact on confidentiality, integrity, and availability.

The bug was discovered 12/28/2016. The weakness was shared 12/28/2016 by Dawid Golunski as PHPMailer < 5.2.20 Remote Code Execution PoC 0day Exploit (CVE-2016-10045) (Bypass of the CVE-2016-1033 patch) as confirmed mailinglist post (Bugtraq). The advisory is shared for download at seclists.org. The mailinglist post contains:

I'm releasing this as a 0day without the new patch available publicly as a potential bypass was publicly discussed on oss-sec list with Solar Designer in the PHPMailer < 5.2.18 thread, so holding the advisory further would serve no purpose.
This vulnerability is traded as CVE-2016-10045 since 12/26/2016. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details are unknown but a public exploit is available. The MITRE ATT&CK project declares the attack technique as T1202. The advisory points out:
I discovered that the current PHPMailer versions (< 5.2.20) were still vulnerable to RCE as it is possible to bypass the currently available patch.

A public exploit has been developed by Dawid Golunski in Python and been published immediately after the advisory. The exploit is shared for download at seclists.org. It is declared as highly functional. The vulnerability was handled as a non-public zero-day exploit for at least 2 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 96319 (Fedora 25 : php-PHPMailer (2016-6941d25875)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 175926 (Debian Security Update for libphp-phpmailer (DSA 3750-1)).

Upgrading to version 5.2.20 eliminates this vulnerability. A possible mitigation has been published 2 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Exploit-DB (40969), Tenable (96319) and SecurityFocus (BID 95130†). Further details are available at seclists.org. The entry VDB-94687 is related to this item. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
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CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.2

VulDB Base Score: 7.3
VulDB Temp Score: 6.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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Exploitinginfo

Class: Command injection
CWE: CWE-77 / CWE-74 / CWE-707
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Highly functional
Author: Dawid Golunski
Programming Language: 🔍
Download: 🔍

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Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 96319
Nessus Name: Fedora 25 : php-PHPMailer (2016-6941d25875)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 63797
OpenVAS Name: PHPMailer Remote Code Execution Vulnerability-01
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

MetaSploit ID: phpmailer_arg_injection.rb
MetaSploit Name: PHPMailer Sendmail Argument Injection
MetaSploit File: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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0-Day Time: 🔍
Exposure Time: 🔍
Exploit Delay Time: 🔍

Upgrade: PHPMailer 5.2.20

Timelineinfo

12/26/2016 🔍
12/26/2016 +0 days 🔍
12/27/2016 +1 days 🔍
12/28/2016 +1 days 🔍
12/28/2016 +0 days 🔍
12/28/2016 +0 days 🔍
12/28/2016 +0 days 🔍
12/30/2016 +2 days 🔍
01/06/2017 +7 days 🔍
01/06/2017 +0 days 🔍
02/01/2025 +2948 days 🔍

Sourcesinfo

Advisory: PHPMailer < 5.2.20 Remote Code Execution PoC 0day Exploit (CVE-2016-10045) (Bypass of the CVE-2016-1033 patch)
Researcher: Dawid Golunski
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-10045 (🔍)
GCVE (CVE): GCVE-0-2016-10045
GCVE (VulDB): GCVE-100-94704
SecurityFocus: 95130 - PHPMailer CVE-2016-10045 Incomplete Fix Remote Code Execution Vulnerability
SecurityTracker: 1037533

scip Labs: https://www.scip.ch/en/?labs.20161013
Misc.: 🔍
See also: 🔍

Entryinfo

Created: 12/28/2016 18:29
Updated: 02/01/2025 18:26
Changes: 12/28/2016 18:29 (90), 07/25/2019 10:56 (8), 10/12/2022 21:02 (5), 02/01/2025 18:26 (14)
Complete: 🔍
Cache ID: 216:535:103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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