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CVE-2024-30397
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MITRE ATT&CK
Collection
Command and Control
Credential Access
Defense Evasion
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Execution
Exfiltration
Impact
Initial Access
Lateral Movement
Persistence
Privilege Escalation
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Description
An Improper Check for Unusual or Exceptional Conditions vulnerability in the the Public Key Infrastructure daemon (pkid) of Juniper Networks Junos OS allows an unauthenticated networked attacker to cause Denial of Service (DoS).
The pkid is responsible for the certificate verification. Upon a failed verification, the pkid uses all CPU resources and becomes unresponsive to future verification attempts. This means that all subsequent VPN negotiations depending on certificate verification will fail.
This CPU utilization of pkid can be checked using this command:
root@srx> show system processes extensive | match pkid
xxxxx ?root ?103? 0 ?846M ?136M ?CPU1 ?1 569:00 100.00% pkid
This issue affects:
Juniper Networks Junos OS
- All versions prior to 20.4R3-S10;
- 21.2 versions prior to 21.2R3-S7;
- 21.4 versions prior to 21.4R3-S5;
- 22.1 versions prior to 22.1R3-S4;
- 22.2 versions prior to 22.2R3-S3;
- 22.3 versions prior to 22.3R3-S1;
- 22.4 versions prior to 22.4R3;
- 23.2 versions prior to 23.2R1-S2, 23.2R2.
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