Command injection in bzr (Ubuntu package) - CVE-2017-14176
Published: December 4, 2017 / Updated: June 22, 2020
Vulnerability identifier: #VU9525
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2017-14176
CWE-ID: CWE-77
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Canonical Ltd.
Affected software:
bzr (Ubuntu package)
bzr (Ubuntu package)
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary commands on the target system.
The weakness exists due to insufficient validation of user-supplied input. A remote attacker can supply a specially crafted bzr+ssh URL with an initial dash character in the hostname, trick the victim into visiting it, inject and execute arbitrary commands when Subprocess SSH is used.
Successful exploitation of the vulnerability may result in system compromise.
The weakness exists due to insufficient validation of user-supplied input. A remote attacker can supply a specially crafted bzr+ssh URL with an initial dash character in the hostname, trick the victim into visiting it, inject and execute arbitrary commands when Subprocess SSH is used.
Successful exploitation of the vulnerability may result in system compromise.
How to mitigate CVE-2017-14176
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.