Executive Summary

Summary
Title Roundcube: Arbitrary code execution
Informations
Name GLSA-201612-44 First vendor Publication 2016-12-24
Vendor Gentoo Last vendor Modification 2016-12-24
Severity (Vendor) N/A Revision N/A

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:M/Au:S/C:P/I:P/A:P)
Cvss Base Score 6 Attack Range Network
Cvss Impact Score 6.4 Attack Complexity Medium
Cvss Expoit Score 6.8 Authentication Requires single instance
Calculate full CVSS 2.0 Vectors scores

Detail

Synopsis

A vulnerability in Roundcube could potentially lead to arbitrary code execution.

Background

Free and open source webmail software for the masses, written in PHP.

Description

Roundcube, 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.

Impact

An authenticated remote attacker could possibly execute arbitrary code with the privileges of the process, or cause a Denial of Service condition.

Workaround

Don't use a MTA (Mail Transfer Agent) in conjunction with Roundcube which implements sendmail's "-O" or "-X" parameter, or configure Roundcube to use a SMTP server as recommended by upstream.

Resolution

All Roundcube users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=mail-client/roundcube-1.2.3"

References

[ 1 ] CVE-2016-9920
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-9920

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website:

https://security.gentoo.org/glsa/201612-44

Original Source

Url : http://security.gentoo.org/glsa/glsa-201612-44.xml

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-284 Access Control (Authorization) Issues

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 87

Nessus® Vulnerability Scanner

Date Description
2016-12-27 Name : The remote Gentoo host is missing one or more security-related patches.
File : gentoo_GLSA-201612-44.nasl - Type : ACT_GATHER_INFO
2016-12-14 Name : The remote Fedora host is missing a security update.
File : fedora_2016-60753c3dcd.nasl - Type : ACT_GATHER_INFO
2016-12-14 Name : The remote Fedora host is missing a security update.
File : fedora_2016-b4896f20b3.nasl - Type : ACT_GATHER_INFO
2016-12-12 Name : The remote Fedora host is missing a security update.
File : fedora_2016-d361d188d9.nasl - Type : ACT_GATHER_INFO
2016-11-29 Name : The remote FreeBSD host is missing a security-related update.
File : freebsd_pkg_125f5958b61111e6a9a5b499baebfeaf.nasl - Type : ACT_GATHER_INFO

Alert History

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0
1
Date Informations
2016-12-28 13:21:26
  • Multiple Updates
2016-12-24 09:23:28
  • First insertion