Bash Remote Code Execution (Shellshock)

Critical Nessus Plugin ID 77823

Synopsis

A system shell on the remote host is vulnerable to command injection.

Description

The remote host is running a version of Bash that is vulnerable to command injection via environment variable manipulation. Depending on the configuration of the system, an attacker could remotely execute arbitrary code.

Solution

Update Bash.

See Also

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

http://www.nessus.org/u?dacf7829

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

Plugin Details

Severity: Critical

ID: 77823

File Name: bash_remote_code_execution.nasl

Version: 1.20

Type: remote

Agent: unix

Published: 2014/09/24

Modified: 2018/06/27

Dependencies: 12634

Risk Information

Risk Factor: Critical

CVSSv2

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:gnu:bash

Exploit Available: true

Exploit Ease: Exploits are available

Exploited by Nessus: true

Patch Publication Date: 2014/09/24

Vulnerability Publication Date: 2014/09/24

Exploitable With

Core Impact

Metasploit (Pure-FTPd External Authentication Bash Environment Variable Code Injection)

Reference Information

CVE: CVE-2014-6271

BID: 70103

EDB-ID: 34765, 34766

IAVA: 2014-A-0142