CVE-2014-6271

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General

Score:10.0/10.0
Severity:High
Category:Command Injection
Exploit:Available

Impact Metrics

Confidentiality:Complete
Integrity:Complete
Availability:Complete

Exploitability Metrics

Access Vector:Network
Access Complexity:Low
Authentication:None

Relative vulnerabilities

CVE-2012-3410, CVE-2014-0475, CVE-2014-6277, CVE-2014-6278, CVE-2014-7169, CVE-2014-7186, CVE-2014-7187

Published on 24/09/14 - Updated on 09/10/18

Description

GNU Bash through 4.3 processes trailing strings after function definitions in the values of environment variables, which allows remote attackers to execute arbitrary code via a crafted environment, as demonstrated by vectors involving the ForceCommand feature in OpenSSH sshd, the mod_cgi and mod_cgid modules in the Apache HTTP Server, scripts executed by unspecified DHCP clients, and other situations in which setting the environment occurs across a privilege boundary from Bash execution, aka "ShellShock." NOTE: the original fix for this issue was incorrect; CVE-2014-7169 has been assigned to cover the vulnerability that is still present after the incorrect fix.

Category: Command Injection

CWE-78 (OS Command Injections)
The software constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.

Security Notices

US National Vulnerability DatabaseCVE-2014-6271
Amazon Linux ALAS-2014-418
Agence Nationale de la Sécurité des Systèmes d'Information CERTFR-2014-AVI-403, CERTFR-2014-AVI-404, CERTFR-2014-AVI-405, CERTFR-2014-AVI-415, CERTFR-2014-AVI-436, CERTFR-2014-AVI-444, CERTFR-2014-AVI-480, CERTFR-2015-AVI-146
CentOS CESA-2014:1293, CESA-2014:1306
Debian DSA-3032-1
Debian LTSDLA-59-1
Redhat RHSA-2014:1293, RHSA-2014:1294, RHSA-2014:1306, RHSA-2014:1311
Renater 2014/VULN206, 2014/VULN208, 2014/VULN209, 2014/VULN239
SUSE SUSE-SU-2014:1212, SUSE-SU-2014:1213, SUSE-SU-2014:1214, SUSE-SU-2014:1247, SUSE-SU-2014:1259, SUSE-SU-2014:1260
Ubuntu USN-2362-1

Exploits

Exploit-DBEDB-34765, EDB-34766, EDB-34777, EDB-34839, EDB-34860, EDB-34862, EDB-34879, EDB-34895, EDB-34896, EDB-34900, EDB-35115, EDB-35146, EDB-36503, EDB-36504, EDB-36609, EDB-37816, EDB-38849, EDB-39918, EDB-40619, EDB-40938, EDB-42938
SecurityFocusBID-70103

Relative technologies

VendorProduct
gnubash

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