HTTP: Multiple Products Bash Code Injection In URL

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

Extended Description

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 commands 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, CVE-2014-7169, and CVE-2014-6277.

Affected Products

Gnu bash

References

BugTraq: 70103

CVE: CVE-2014-6277

URL: https://access.redhat.com/node/1200223 http://seclists.org/oss-sec/2014/q3/650

Short Name

HTTP:CGI:BASH-INJECTION-URL

Severity

Critical

Recommended

False

Recommended Action

Drop

HTTP: Multiple Products Bash Code Injection In URL

Extended Description

Affected Products

References

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