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CVE-2014-7169: GNU Bourne-Again Shell (Bash) Arbitrary Code Execution Vulnerability

Critical · CVSS 9.8 (CVSS 3.1)KEV known exploitedEPSS 99.9%, 100th percentilePublished Updated Assigner: mitre

In CISA’s Known Exploited Vulnerabilities catalog: GNU Bourne-Again Shell (Bash) Arbitrary Code Execution Vulnerability.

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

Required action: Apply updates per vendor instructions.

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.

Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/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: Bourne-Again Shell (Bash)

References

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