Riskcovery

CVE-2022-22156

Junos OS: Certificate validation is skipped when fetching system scripts from a HTTPS URL

State
Published
Severity
6.5 Medium
Published
Jan 19, 2022
Updated
Sep 17, 2024
Reserved
Dec 21, 2021

Read the record on cve.org

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.

Scores

CVSSScoreVectorSource
3.16.5 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:Njuniper

Weaknesses

  • CWE-358 Improperly Implemented Security Check for Standard
  • CWE-295 Improper Certificate Validation
  • CWE-300 Channel Accessible by Non-Endpoint ('Man-in-the-Middle')

Affected Products

ProductVersions
Junos OSJuniper Networks
  • before 18.4R2-S9, 18.4R3-S9Affected
  • 19.1 to before 19.1R2-S3, 19.1R3-S7Affected
  • 19.2 to before 19.2R1-S7, 19.2R3-S3Affected
  • 19.3 to before 19.3R3-S4Affected
  • 19.4 to before 19.4R3-S7Affected
  • 20.1 to before 20.1R2-S2, 20.1R3Affected
  • 20.2 to before 20.2R3Affected
  • 20.3 to before 20.3R2-S1, 20.3R3Affected
  • 20.4 to before 20.4R2Affected
  • 21.1 to before 21.1R1-S1, 21.1R2Affected

References

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