CUCM IM and Presence Service GNU Bash Environment Variable Handling Command Injection (CSCur05454) (Shellshock)

Critical Nessus Plugin ID 79124

Synopsis

The remote host is missing a vendor-supplied security patch.

Description

According to its self-reported version, the CUCM IM and Presence Service installed on the remote host contains a version of GNU Bash that is affected by a command injection vulnerability known as Shellshock, which is due to the processing of trailing strings after function definitions in the values of environment variables. This allows a remote attacker to execute arbitrary code via environment variable manipulation depending on the configuration of the system.

Solution

Upgrade to Cisco Unified Presence Server 10.5(1.12900.2) or later.

See Also

https://tools.cisco.com/bugsearch/bug/CSCur05454

http://seclists.org/oss-sec/2014/q3/650

https://www.invisiblethreat.ca/post/shellshock/

Plugin Details

Severity: Critical

ID: 79124

File Name: cisco_cups_CSCur05454.nasl

Version: 1.14

Type: combined

Family: CISCO

Published: 2014/11/11

Updated: 2018/07/06

Dependencies: 70088, 12634

Risk Information

Risk Factor: Critical

CVSS v2.0

Base Score: 10

Temporal Score: 8.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Temporal Vector: CVSS2#E:H/RL:OF/RC:C

Vulnerability Information

CPE: cpe:/a:cisco:unified_communications_manager, cpe:/a:cisco:unified_presence_server

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2014/10/23

Vulnerability Publication Date: 2014/09/24

Exploitable With

Core Impact

Metasploit (CUPS Filter Bash Environment Variable Code Injection (Shellshock))

Reference Information

CVE: CVE-2014-6271, CVE-2014-6277, CVE-2014-6278, CVE-2014-7169, CVE-2014-7186, CVE-2014-7187

BID: 70103, 70137, 70152, 70154, 70165, 70166

CISCO-BUG-ID: CSCur05454

IAVA: 2014-A-0142

CISCO-SA: cisco-sa-20140926-bash

CERT: 252743

EDB-ID: 34765, 34766, 34777