CWE Code: 78
Vulnerability Type: privilege_escalation
CVSS Score: 10.0
CWE Name:  Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Summary: gnu bash through 4.3 bash43-026 does not properly parse function definitions in the values of environment variables, which allows remote attackers to execute arbitrary code or cause a denial of service (uninitialized memory access, and untrusted-pointer read and write operations) 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.  note: this vulnerability exists because of an incomplete fix for cve-2014-6271 and cve-2014-7169.
Access Authentication: NONE
Access Complexity: LOW
Access Vector: NETWORK
Impact (C/I/A): COMPLETE/COMPLETE/COMPLETE
Published Date: 2014-09-27
Last Modified Date: 2018-08-09