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veracodeVeracode Vulnerability DatabaseVERACODE:11437
HistoryJan 15, 2019 - 9:02 a.m.

Arbitrary File Overwrite

2019-01-1509:02:02
Veracode Vulnerability Database
sca.analysiscenter.veracode.com
24

0.976 High

EPSS

Percentile

100.0%

bash is vulnerable to arbitrary file overwrite attacks. The vulnerability exists as 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.

References