Command Injection Vulnerability in GNU Bash by Free Software Foundation
CVE-2014-6278

8.8HIGH

Key Information:

Vendor: Gnu
Status: Bash
Vendor: CVE Published:; 30 September 2014

Badges

👾 Exploit Exists🟡 Public PoC🟣 EPSS 90%🦅 CISA Reported

What is CVE-2014-6278?

The GNU Bash shell prior to version 4.3.26 (bash43-026) has a command injection vulnerability. This flaw arises due to improper parsing of function definitions from environment variables, enabling remote attackers to execute arbitrary commands. This can occur in various scenarios, such as through OpenSSH's ForceCommand feature, Apache's mod_cgi, and certain DHCP clients. The vulnerability results from an incomplete fix related to previous CVEs, demonstrating a serious flaw in Bash's handling of external inputs.

CISA has reported CVE-2014-6278

CISA provides regional cyber and physical services to support security and resilience across the United States. CISA monitor the most dangerious vulnerabilities and have identifed CVE-2014-6278 as being exploited but is not known by the CISA to be used in ransomware campaigns. This is subject to change at pace

The CISA's recommendation is: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2014-6278 - Proof of Concept