Improper input validation in Envoyproxy Envoy
CVE-2024-23324
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.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.006 (47.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 48th percentile — 47.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- Envoyproxy Envoy — versions >= 1.29.0, < 1.29.1, >= 1.28.0, < 1.28.1, >= 1.27.0, < 1.27.3
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/envoyproxy/envoy/security/advisories/GHSA-gq3v-vvhj-96j6 (Vendor Advisory)
- github.com/envoyproxy/envoy/commit/29989f6cc8bfd8cd2ffcb7c42711eb02c7a5168a (Patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2024-23324?
- CVE-2024-23324 is a high-severity vulnerability in Envoyproxy Envoy, classified under Improper Input Validation. CVSS score: 8.6/10. Published 2024-02-09.
- How severe is CVE-2024-23324?
- High severity. CVSS v3 base score is 8.6 out of 10.
- Is CVE-2024-23324 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.