CVE-2024-23324

Summary

Envoy is a high-performance edge/middle/service proxy. External authentication can be bypassed by downstream connections. Downstream clients can force invalid gRPC requests to be sent to ext_authz, circumventing ext_authz checks when failure_mode_allow is set to true. This issue has been addressed in released 1.29.1, 1.28.1, 1.27.3, and 1.26.7. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Affected Software

VendorProductVersion RangeStatus
envoyproxyenvoy>= 1.29.0, < 1.29.1affected
envoyproxyenvoy>= 1.28.0, < 1.28.1affected
envoyproxyenvoy>= 1.27.0, < 1.27.3affected
envoyproxyenvoy< 1.26.7affected

Weaknesses

  • CWE-20: CWE-20: Improper Input Validation

ADP Enrichment

CVE Program Container

Additional References

CISA ADP Vulnrichment

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

References