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CVE-2014-6278: GNU Bash OS Command Injection Vulnerability

High · CVSS 8.8 (CVSS 3.1)KEV known exploitedEPSS 99.7%, 100th percentilePublished Updated Assigner: debian

In CISA’s Known Exploited Vulnerabilities catalog: GNU Bash OS Command Injection Vulnerability.

Added , federal remediation due . Known ransomware use: Unknown.

Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

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.

Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Status incidents that name it

No tracked status incident names this CVE.

Affected vendors and products

GNU: GNU Bash

References

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