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Juniper Junos OS: 2022-01 Security Bulletin: Junos OS: Certificate validation is skipped when fetching system scripts from a HTTPS URL (JSA11264) (CVE-2022-22156)

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Juniper Junos OS: 2022-01 Security Bulletin: Junos OS: Certificate validation is skipped when fetching system scripts from a HTTPS URL (JSA11264) (CVE-2022-22156)

Severity
6
CVSS
(AV:N/AC:M/Au:N/C:P/I:P/A:N)
Published
01/19/2022
Created
03/21/2022
Added
03/21/2022
Modified
03/21/2022

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.

Solution(s)

  • juniper-junos-os-upgrade-latest

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