High severity · published Feb 9, 2024
CVE-2024-23324
Envoy is a high-performance edge/middle/service proxy
7.5
CVSS
0.6%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 49% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
EN
Envoy · Envoyproxy
1.26.0 before 1.26.7; 1.27.0 before 1.27.3; 1.28.0 before 1.28.1; 1.29.0 before 1.29.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-23324
CVE.org
https://www.cve.org/CVERecord?id=CVE-2024-23324
Patch
https://github.com/envoyproxy/envoy/commit/29989f6cc8bfd8cd2ffcb7c42711eb02c7a5168a
Vendor Advisory
https://github.com/envoyproxy/envoy/security/advisories/GHSA-gq3v-vvhj-96j6
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