Input validation error in envoy - CVE-2023-27487
Published: April 5, 2023 / Updated: April 6, 2023
Vulnerability identifier: #VU74480
CSH Severity: High
CVSS v4: 8.8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2023-27487
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to insufficient validation of user-supplied input in the "header x-envoy-original-path". A remote attacker can gain access to sensitive information on the system.
Affected software
envoy
Amazon Linux AMI
Istio
OpenShift Service Mesh
Amazon Linux AMI
Istio
OpenShift Service Mesh
How to mitigate CVE-2023-27487
Install updates from vendor's website.
envoy - addressed in versions 1.22.10, 1.23.7, 1.24.5, 1.25.4
Istio - addressed in versions 1.15.7, 1.16.4, 1.17.2
OpenShift Service Mesh - update to 2.2.9
Istio - addressed in versions 1.15.7, 1.16.4, 1.17.2
OpenShift Service Mesh - update to 2.2.9
External References
- https://github.com/envoyproxy/envoy/security/advisories/GHSA-5375-pq35-hf2g
- https://github.com/envoyproxy/envoy/releases/tag/v1.25.4
- https://github.com/envoyproxy/envoy/releases/tag/v1.24.5
- https://github.com/envoyproxy/envoy/releases/tag/v1.23.7
- https://github.com/envoyproxy/envoy/releases/tag/v1.22.10