Vulnerability · Published Jan 19, 2022 · Assigned by juniper
CVE-2022-22156Junos OS: Certificate validation is skipped when fetching system scripts from a HTTPS URL
Medium 6.5
In plain English
A medium-severity improper certificate validation in Junos OS from Juniper Networks. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 46% of all known vulnerabilities).
Official description
An Improper Certificate Validation weakness in the Juniper Networks Junos OS allows an attacker to perform Person-in-the-Middle (PitM) attacks when a system script is fetched from a remote source at a specified HTTPS URL, which may compromise the integrity and confidentiality of the device. The following command can be executed by an administrator via the CLI to refresh a script from a remote location, which is affected from this vulnerability: >request system scripts refresh-from (commit | event | extension-service | op | snmp) file filename url <https-url> This issue affects: Juniper Networks Junos OS All versions prior to 18.4R2-S9, 18.4R3-S9; 19.1 versions prior to 19.1R2-S3, 19.1R3-S7; 19.2 versions prior to 19.2R1-S7, 19.2R3-S3; 19.3 versions prior to 19.3R3-S4; 19.4 versions prior to 19.4R3-S7; 20.1 versions prior to 20.1R2-S2, 20.1R3; 20.2 versions prior to 20.2R3; 20.3 versions prior to 20.3R2-S1, 20.3R3; 20.4 versions prior to 20.4R2; 21.1 versions prior to 21.1R1-S1, 21.1R2.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Juniper Networks | Junos OS | unspecified – before 18.4R2-S9, 18.4R3-S919.1 – before 19.1R2-S3, 19.1R3-S719.2 – before 19.2R1-S7, 19.2R3-S319.3 – before 19.3R3-S419.4 – before 19.4R3-S720.1 – before 20.1R2-S2, 20.1R320.2 – before 20.2R320.3 – before 20.3R2-S1, 20.3R3 |
Weakness: CWE-358, CWE-295, CWE-300 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N
References
- https://kb.juniper.net/JSA11264 x_refsource_CONFIRM