Executive Summary

Summary
Title Dropbear: Privilege escalation
Informations
Name GLSA-201607-08 First vendor Publication 2016-07-20
Vendor Gentoo Last vendor Modification 2016-07-20
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:L/Au:S/C:P/I:P/A:N)
Cvss Base Score 5.5 Attack Range Network
Cvss Impact Score 4.9 Attack Complexity Low
Cvss Expoit Score 8 Authentication Requires single instance
Calculate full CVSS 2.0 Vectors scores

Detail

Synopsis

A vulnerability has been found in Dropbear, which allows remote authenticated users to bypass intended shell-command restrictions.

Background

Dropbear is a relatively small SSH server and client.

Description

A CRLF injection vulnerability in Dropbear SSH allows remote authenticated users to bypass intended shell-command restrictions via crafted X11 forwarding data.

Impact

A remote authenticated user could execute arbitrary code with the privileges of the process.

Workaround

There is no known workaround at this time.

Resolution

All Dropbear users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-misc/dropbear-2016.73"

References

[ 1 ] CVE-2016-3116
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-3116

Availability

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

https://security.gentoo.org/glsa/201607-08

Original Source

Url : http://security.gentoo.org/glsa/glsa-201607-08.xml

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 1

Nessus® Vulnerability Scanner

Date Description
2016-08-02 Name : The remote Fedora host is missing a security update.
File : fedora_2016-6de0b19b3b.nasl - Type : ACT_GATHER_INFO
2016-07-21 Name : The remote Gentoo host is missing one or more security-related patches.
File : gentoo_GLSA-201607-08.nasl - Type : ACT_GATHER_INFO
2016-03-28 Name : The remote Fedora host is missing a security update.
File : fedora_2016-bc45faa824.nasl - Type : ACT_GATHER_INFO
2016-03-25 Name : The remote openSUSE host is missing a security update.
File : openSUSE-2016-387.nasl - Type : ACT_GATHER_INFO
2016-03-25 Name : The remote openSUSE host is missing a security update.
File : openSUSE-2016-393.nasl - Type : ACT_GATHER_INFO
2016-03-24 Name : The remote Fedora host is missing a security update.
File : fedora_2016-332491de28.nasl - Type : ACT_GATHER_INFO
2016-03-24 Name : The remote Fedora host is missing a security update.
File : fedora_2016-40a657cee1.nasl - Type : ACT_GATHER_INFO
2016-03-18 Name : The remote SSH service is affected by a command injection vulnerability.
File : dropbear_ssh_72.nasl - Type : ACT_GATHER_INFO
2016-03-15 Name : The remote FreeBSD host is missing a security-related update.
File : freebsd_pkg_8eb78cdce9ec11e585be14dae9d210b8.nasl - Type : ACT_GATHER_INFO

Alert History

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0
1
Date Informations
2016-07-22 13:38:25
  • Multiple Updates
2016-07-22 13:36:15
  • First insertion