Improper input validation in BusyBox - CVE-2017-16544
Published: March 29, 2018 / Updated: August 28, 2020
Vulnerability identifier: #VU11326
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2017-16544
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: busybox.net
Affected software:
BusyBox
BusyBox
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The weakness exists in the add_match function in libbb/lineedit.c due to the tab autocomplete feature of the shell, used to get a list of filenames in a directory, does not sanitize filenames and results in executing any escape sequence in the terminal. A remote attacker can execute arbitrary code with the system privileges and write arbitrary files.
Successful exploitation of the vulnerability may result in system compromise.
The weakness exists in the add_match function in libbb/lineedit.c due to the tab autocomplete feature of the shell, used to get a list of filenames in a directory, does not sanitize filenames and results in executing any escape sequence in the terminal. A remote attacker can execute arbitrary code with the system privileges and write arbitrary files.
Successful exploitation of the vulnerability may result in system compromise.
How to mitigate CVE-2017-16544
Update to version 1.28.0.