rewindex

RewindexCVEs

CVE-2014-6271: GNU Bourne-Again Shell (Bash) Arbitrary Code Execution Vulnerability

Critical · CVSS 9.8 (CVSS 3.1)KEV known exploitedEPSS 100.0%, 100th percentilePublished Updated Assigner: debian

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 processes trailing strings after function definitions in the values of environment variables, which allows remote attackers to execute arbitrary code 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, aka "ShellShock." NOTE: the original fix for this issue was incorrect; CVE-2014-7169 has been assigned to cover the vulnerability that is still present after the incorrect fix.

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

All CVEsMarkdownJSON