Code Injection in Ingress-NGINX Controller for Kubernetes - CVE-2023-5044
Published: October 30, 2023 / Updated: January 7, 2024
Vulnerability identifier: #VU82557
CSH Severity: Medium
CVSS v4: 7.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2023-5044
CWE-ID: CWE-94
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vulnerability details
The vulnerability allows a remote user to execute arbitrary code on the target system.
The vulnerability exists due to improper input validation in the nginx.ingress.kubernetes.io/permanent-redirect annotation on an Ingress object. A remote user can send a specially crafted request, inject arbitrary commands, and obtain the credentials of the ingress-nginx controller.
Affected software
Ingress-NGINX Controller for Kubernetes
IBM InfoSphere Information Server
IBM InfoSphere Information Server
How to mitigate CVE-2023-5044
Install updates from vendor's website.
Ingress-NGINX Controller for Kubernetes - update to 1.9.0
IBM InfoSphere Information Server - update to 11.7.1.4 Service pack 2
IBM InfoSphere Information Server - update to 11.7.1.4 Service pack 2