CVE-2016-9920
Roundcube Sendmail Envelope-From Code Execution Vulnerability
Description
steps/mail/sendmail.inc in Roundcube before 1.1.7 and 1.2.x before 1.2.3, when no SMTP server is configured and the sendmail program is enabled, does not properly restrict the use of custom envelope-from addresses on the sendmail command line, which allows remote authenticated users to execute arbitrary code via a modified HTTP request that sends a crafted e-mail message.
INFO
Published Date :
Dec. 8, 2016, 6:59 p.m.
Last Modified :
April 12, 2025, 10:46 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2016-9920
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 2.0 | MEDIUM | [email protected] | ||||
| CVSS 3.0 | HIGH | [email protected] |
Solution
CVE-2016-9920 vulnerability.
Public PoC/Exploit Available at Github
CVE-2016-9920 has a 3 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2016-9920.
| URL | Resource |
|---|---|
| http://www.openwall.com/lists/oss-security/2016/12/08/10 | Mailing List Third Party Advisory |
| http://www.securityfocus.com/bid/94858 | |
| https://blog.ripstech.com/2016/roundcube-command-execution-via-email/ | Exploit Third Party Advisory |
| https://roundcube.net/news/2016/11/28/updates-1.2.3-and-1.1.7-released | Release Notes Vendor Advisory |
| https://security.gentoo.org/glsa/201612-44 | |
| http://www.openwall.com/lists/oss-security/2016/12/08/10 | Mailing List Third Party Advisory |
| http://www.securityfocus.com/bid/94858 | |
| https://blog.ripstech.com/2016/roundcube-command-execution-via-email/ | Exploit Third Party Advisory |
| https://roundcube.net/news/2016/11/28/updates-1.2.3-and-1.1.7-released | Release Notes Vendor Advisory |
| https://security.gentoo.org/glsa/201612-44 |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2016-9920 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2016-9920
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
None
None
Roundcube 1.0.0 <= 1.2.2 Remote Code Execution exploit and vulnerable container
roundcube docker vulnerable-container exploit cve-2016-9920 rce
Python PHP Shell
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2016-9920 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2016-9920 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference http://www.openwall.com/lists/oss-security/2016/12/08/10 Added Reference http://www.securityfocus.com/bid/94858 Added Reference https://blog.ripstech.com/2016/roundcube-command-execution-via-email/ Added Reference https://roundcube.net/news/2016/11/28/updates-1.2.3-and-1.1.7-released Added Reference https://security.gentoo.org/glsa/201612-44 -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Jul. 01, 2017
Action Type Old Value New Value Added Reference https://security.gentoo.org/glsa/201612-44 [No Types Assigned] -
CVE Modified by [email protected]
Dec. 15, 2016
Action Type Old Value New Value Added Reference http://www.securityfocus.com/bid/94858 [No Types Assigned] -
Initial Analysis by [email protected]
Dec. 09, 2016
Action Type Old Value New Value Added CPE Configuration Configuration 1 OR *cpe:2.3:a:roundcube:webmail:1.1.6:*:*:*:*:*:*:* (and previous) *cpe:2.3:a:roundcube:webmail:1.2.1:*:*:*:*:*:*:* *cpe:2.3:a:roundcube:webmail:1.2.2:*:*:*:*:*:*:* *cpe:2.3:a:roundcube:webmail:1.2.0:*:*:*:*:*:*:* Added CVSS V2 (AV:N/AC:M/Au:S/C:P/I:P/A:P) Added CVSS V3 AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://roundcube.net/news/2016/11/28/updates-1.2.3-and-1.1.7-released No Types Assigned https://roundcube.net/news/2016/11/28/updates-1.2.3-and-1.1.7-released Release Notes, Vendor Advisory Changed Reference Type http://www.openwall.com/lists/oss-security/2016/12/08/10 No Types Assigned http://www.openwall.com/lists/oss-security/2016/12/08/10 Third Party Advisory, Mailing List Changed Reference Type https://blog.ripstech.com/2016/roundcube-command-execution-via-email/ No Types Assigned https://blog.ripstech.com/2016/roundcube-command-execution-via-email/ Third Party Advisory, Exploit Added CWE CWE-284
Vulnerability Scoring Details
Base CVSS Score: 7.5
Base CVSS Score: 6
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
44.83 }} 6.53%
score
0.97443
percentile