Man-in-the-Middle (MitM) attack in Google Compute Engine - CVE-2019-16546
Published: November 22, 2019
Vulnerability identifier: #VU22922
CSH Severity: Low
CVSS v4: 2.1 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2019-16546
CWE-ID: CWE-300
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a man-in-the-middle (MitM) attack.
The vulnerability exists due to the affected plugin does not use SSH host key verification when connecting to VMs launched by the plugin. A remote attacker can perform a man-in-the-middle attack to intercept these connections to attacker-specified build agents without warning.
Affected software
Google Compute Engine
How to mitigate CVE-2019-16546
Install updates from vendor's website.
Google Compute Engine - update to 4.2.0