CVE-2024-30390

Summary

An Improper Restriction of Excessive Authentication Attempts vulnerability in Juniper Networks Junos OS Evolved allows an unauthenticated, network-based attacker to cause a limited Denial of Service (DoS) to the management plane.

When an incoming connection was blocked because it exceeded the connections-per-second rate-limit, the system doesn't consider existing connections anymore for subsequent connection attempts so that the connection limit can be exceeded. This issue affects Junos OS Evolved:

  • All versions before 21.4R3-S4-EVO,
  • 22.1-EVO versions before 22.1R3-S3-EVO,
  • 22.2-EVO versions before 22.2R3-S2-EVO, 
  • 22.3-EVO versions before 22.3R2-S1-EVO, 22.3R3-EVO.

Affected Software

VendorProductVersion RangeStatus
Juniper NetworksJunos OS Evolved0 < 21.4R3-S4-EVOaffected
Juniper NetworksJunos OS Evolved22.1-EVO < 22.1R3-S3-EVOaffected
Juniper NetworksJunos OS Evolved22.2-EVO < 22.2R3-S2-EVOaffected
Juniper NetworksJunos OS Evolved22.3-EVO < 22.3R2-S1-EVO, 22.3R3-EVOaffected

Weaknesses

  • CWE-307: CWE-307 Improper Restriction of Excessive Authentication Attempts
  • Denial-of-Service (DoS)

Workarounds

There are no known workarounds for this issue.

To reduce the risk of exploitation use access lists or firewall filters to limit access to the device only from trusted, administrative networks or hosts.

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

CVE Program Container

Additional References

References