Strix
26.1K

CVE-2014-7169

CRITICALCVSS 9.8/10Actively ExploitedEPSS 99.94%

Last modified

CVE-2014-7169 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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.. CISA has confirmed active exploitation in the wild. EPSS estimates a 99.94% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
9.8/10

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

EPSS Probability
99.94%

100.0th percentile

Probability of exploitation in the next 30 days. Learn more

Exploitation Status

This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by .

Weakness Enumeration

Affected Software

VendorProductVersionsUpdate
GnuBash<= 4.3—
AristaEos>= 4.9.0, < 4.9.12—
AristaEos>= 4.10.0, < 4.10.9—
AristaEos>= 4.11.0, < 4.11.11—
AristaEos>= 4.12.0, < 4.12.9—
AristaEos>= 4.13.0, < 4.13.9—
AristaEos>= 4.14.0, < 4.14.4f—
OracleLinux4—
OracleLinux5—
OracleLinux6—
QnapQts< 4.1.1—
QnapQts4.1.1—
MageiaMageia3.0—
MageiaMageia4.0—
RedhatGluster Storage Server For On-Premise2.1—
RedhatVirtualization3.4—
RedhatEnterprise Linux4.0—
RedhatEnterprise Linux5.0—
RedhatEnterprise Linux6.0—
RedhatEnterprise Linux7.0—
RedhatEnterprise Linux Desktop5.0—
RedhatEnterprise Linux Desktop6.0—
RedhatEnterprise Linux Desktop7.0—
RedhatEnterprise Linux Eus5.9—
RedhatEnterprise Linux Eus6.4—
RedhatEnterprise Linux Eus6.5—
RedhatEnterprise Linux Eus7.3—
RedhatEnterprise Linux Eus7.4—
RedhatEnterprise Linux Eus7.5—
RedhatEnterprise Linux Eus7.6—
RedhatEnterprise Linux Eus7.7—
RedhatEnterprise Linux For Ibm Z Systems5.9_s390x—
RedhatEnterprise Linux For Ibm Z Systems6.4_s390x—
RedhatEnterprise Linux For Ibm Z Systems6.5_s390x—
RedhatEnterprise Linux For Ibm Z Systems7.3_s390x—
RedhatEnterprise Linux For Ibm Z Systems7.4_s390x—
RedhatEnterprise Linux For Ibm Z Systems7.5_s390x—
RedhatEnterprise Linux For Ibm Z Systems7.6_s390x—
RedhatEnterprise Linux For Ibm Z Systems7.7_s390x—
RedhatEnterprise Linux For Power Big Endian5.0_ppc—
RedhatEnterprise Linux For Power Big Endian5.9_ppc—
RedhatEnterprise Linux For Power Big Endian6.0_ppc64—
RedhatEnterprise Linux For Power Big Endian6.4_ppc64—
RedhatEnterprise Linux For Power Big Endian7.0_ppc64—
RedhatEnterprise Linux For Power Big Endian Eus6.5_ppc64—
RedhatEnterprise Linux For Power Big Endian Eus7.3_ppc64—
RedhatEnterprise Linux For Power Big Endian Eus7.4_ppc64—
RedhatEnterprise Linux For Power Big Endian Eus7.5_ppc64—
RedhatEnterprise Linux For Power Big Endian Eus7.6_ppc64—
RedhatEnterprise Linux For Power Big Endian Eus7.7_ppc64—

Showing 50 of 228 affected configurations. See NVD for the full list.

References

Timeline

Published
Last Modified
Status
Analyzed

Frequently Asked Questions

What is CVE-2014-7169?
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.
How severe is CVE-2014-7169?
CVE-2014-7169 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 99.94% probability of exploitation in the next 30 days. This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog.
How do I fix CVE-2014-7169?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2014-7169?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST