SMTP: Multiple Products Bash Shellshock Vulnerability

This signature detects attempts to exploit a known vulnerability against GNU Bash. A successful attack can lead to arbitrary code execution.

Extended Description

GNU Bash through 4.3 bash43-025 processes trailing strings after certain malformed function definitions in the values of environment variables, which allows remote attackers to write to files or possibly have unknown other impact 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.

Affected Products

Redhat enterprise_linux_server

References

CVE: CVE-2014-7169

URL: http://blog.trendmicro.com/trendlabs-security-intelligence/shellshock-related-attacks-continue-targets-smtp-servers/

Short Name

SMTP:MUL-BASH-SHELLSHOCK

Severity

Major

Recommended

True

Recommended Action

None

SMTP: Multiple Products Bash Shellshock Vulnerability

Extended Description

Affected Products

References

Found a potential security threat?