Improper Certificate Validation in Junos OS - CVE-2022-22156
Published: January 17, 2022
Vulnerability identifier: #VU59626
CSH Severity: Medium
CVSS v4: 8.3 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2022-22156
CWE-ID: CWE-295
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform Person-in-the-Middle (PitM) attack.
The vulnerability exists due to improper certificate validation issue when a system script is fetched from a remote source at a specified HTTPS URL. A remote attacker can perform Person-in-the-Middle (PitM) attacks.
Affected software
Junos OS
How to mitigate CVE-2022-22156
Install updates from vendor's website.
Junos OS - addressed in versions 18.4R2-S9, 18.4R3-S9, 19.1R2-S3, 19.1R3-S7, 19.2R1-S7, 19.2R3-S3, 19.3R3-S4, 19.4R3-S7, 20.1R2-S2, 20.1R3, 20.2R3, 20.3R2-S1, 20.3R3, 20.4R2, 21.1R1-S1, 21.1R2, 21.2R1