Improper access control in Consul Enterprise - CVE-2023-2816
Published: June 8, 2023
Vulnerability identifier: #VU77106
CSH Severity: Low
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N]
CVE-ID: CVE-2023-2816
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to gain unauthorized access to otherwise restricted functionality.
The vulnerability exists due to improper access restrictions in Lua extension. A remote user with service:write ACL permissions for an upstream service can modify Envoy proxy config for downstream services without equivalent permissions for those services.
Affected software
Consul Enterprise
Gentoo Linux
app-admin/consul
Gentoo Linux
app-admin/consul
How to mitigate CVE-2023-2816
Install updates from vendor's website.
Consul Enterprise - update to 1.15.3
app-admin/consul - update to 1.15.10
app-admin/consul - update to 1.15.10