CVE-2022-22218

Summary

On SRX Series devices, an Improper Check for Unusual or Exceptional Conditions when using Certificate Management Protocol Version 2 (CMPv2) auto re-enrollment, allows a network-based, unauthenticated attacker to cause a Denial of Service (DoS) by crashing the pkid process. The pkid process cannot handle an unexpected response from the Certificate Authority (CA) server, leading to crash. A restart is required to restore services. This issue affects: Juniper Networks Junos OS on SRX Series: All versions prior to 19.1R3-S9; 19.2 versions prior to 19.2R3-S6; 19.3 versions prior to 19.3R3-S7; 19.4 versions prior to 19.4R3-S9; 20.2 versions prior to 20.2R3-S5; 20.3 versions prior to 20.3R3-S4; 20.4 versions prior to 20.4R3-S4; 21.1 versions prior to 21.1R3-S1; 21.2 versions prior to 21.2R3; 21.3 versions prior to 21.3R2; 21.4 versions prior to 21.4R2.

Affected Software

VendorProductVersion RangeStatus
Juniper NetworksJunos OSunspecified < 19.1R3-S9affected
Juniper NetworksJunos OS19.2 < 19.2R3-S6affected
Juniper NetworksJunos OS19.3 < 19.3R3-S7affected
Juniper NetworksJunos OS19.4 < 19.4R3-S9affected
Juniper NetworksJunos OS20.2 < 20.2R3-S5affected
Juniper NetworksJunos OS20.3 < 20.3R3-S4affected
Juniper NetworksJunos OS20.4 < 20.4R3-S4affected
Juniper NetworksJunos OS21.1 < 21.1R3-S1affected
Juniper NetworksJunos OS21.2 < 21.2R3affected
Juniper NetworksJunos OS21.3 < 21.3R2affected
Juniper NetworksJunos OS21.4 < 21.4R2affected

Weaknesses

  • Denial of Service (DoS)
  • CWE-754: CWE-754 Improper Check for Unusual or Exceptional Conditions

Workarounds

There are no known workarounds for this issue.

ADP Enrichment

CVE Program Container

Additional References

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: yes
    • Technical Impact: partial

References