Security Bulletin
Summary
Multiple vulnerabilities in ingress-nginx that is used by IBM InfoSphere Information Server were addressed.
Vulnerability Details
CVEID: CVE-2025-1097
DESCRIPTION: A security issue was discovered in ingress-nginx https://github.com/kubernetes/ingress-nginx where the `auth-tls-match-cn` Ingress annotation can be used to inject configuration into nginx. This can lead to arbitrary code execution in the context of the ingress-nginx controller, and disclosure of Secrets accessible to the controller. (Note that in the default installation, the controller can access all Secrets cluster-wide.)
CWE: CWE-20: Improper Input Validation
CVSS Source: jordan@liggitt.net
CVSS Base score: 8.8
CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
CVEID: CVE-2025-1098
DESCRIPTION: A security issue was discovered in ingress-nginx https://github.com/kubernetes/ingress-nginx where the `mirror-target` and `mirror-host` Ingress annotations can be used to inject arbitrary configuration into nginx. This can lead to arbitrary code execution in the context of the ingress-nginx controller, and disclosure of Secrets accessible to the controller. (Note that in the default installation, the controller can access all Secrets cluster-wide.)
CWE: CWE-20: Improper Input Validation
CVSS Source: jordan@liggitt.net
CVSS Base score: 8.8
CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
CVEID: CVE-2025-1974
DESCRIPTION: A security issue was discovered in Kubernetes where under certain conditions, an unauthenticated attacker with access to the pod network can achieve arbitrary code execution in the context of the ingress-nginx controller. This can lead to disclosure of Secrets accessible to the controller. (Note that in the default installation, the controller can access all Secrets cluster-wide.)
CWE: CWE-653: Improper Isolation or Compartmentalization
CVSS Source: jordan@liggitt.net
CVSS Base score: 9.8
CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
CVEID: CVE-2025-24513
DESCRIPTION: A security issue was discovered in ingress-nginx https://github.com/kubernetes/ingress-nginx where attacker-provided data are included in a filename by the ingress-nginx Admission Controller feature, resulting in directory traversal within the container. This could result in denial of service, or when combined with other vulnerabilities, limited disclosure of Secret objects from the cluster.
CWE: CWE-20: Improper Input Validation
CVSS Source: jordan@liggitt.net
CVSS Base score: 4.8
CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L)
CVEID: CVE-2025-24514
DESCRIPTION: A security issue was discovered in ingress-nginx https://github.com/kubernetes/ingress-nginx where the `auth-url` Ingress annotation can be used to inject configuration into nginx. This can lead to arbitrary code execution in the context of the ingress-nginx controller, and disclosure of Secrets accessible to the controller. (Note that in the default installation, the controller can access all Secrets cluster-wide.)
CWE: CWE-20: Improper Input Validation
CVSS Source: jordan@liggitt.net
CVSS Base score: 8.8
CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
Affected Products and Versions
| Affected Product(s) | Version(s) |
| InfoSphere Information Server | 11.7 |
Remediation/Fixes
NOTE: Due to the severity of the issue IBM strongly encourages you to apply the fix as soon as possible, or at least follow the steps listed in the Workarounds and Mitigations section.
| InfoSphere Information Server, InfoSphere Information Server on Cloud | 11.7 |
--Apply IBM InfoSphere Information Server version 11.7.1.0 |
Workarounds and Mitigations
Note: If the microservices tier host does not have outbound internet connectivity, the following workaround will not work, as it requires a connection to the Kubernetes container image registry, registry.k8s.io. In such cases, the patch should be installed.
Update the ingress-nginx component to the vulnerability-free version:
### Run as the user who installed the microservices tier
$ cd /opt/IBM/UGinstall/ugdockerfiles
$ registry_username="$(awk -F: '$1 ~ /registry_username$/ {sub(/^[ \t\r\n]+/,"",$2);print $2}' inventory.yaml)"
$ registry_password="$(awk -F: '$1 ~ /registry_password$/ {sub(/^[ \t\r\n]+/,"",$2);print $2}' inventory.yaml)"
$ bin/skopeo copy --dest-tls-verify=false --dcreds="$registry_username:$registry_password" docker://registry.k8s.io/ingress-nginx/controller:v1.11.5 docker://$(hostname):5000/ingress-nginx/controller:v1.11.5
$ kubectl -n kube-system set image deploy ingress-nginx-controller ingress-nginx-controller="$(hostname):5000/ingress-nginx/controller:v1.11.5"
Get Notified about Future Security Bulletins
References
Acknowledgement
Change History
01 Apr 2025: Initial Publication of mitigation steps
14 Apr 2025: Added fix for Information Server 11.7.1.5 and 11.7.1.6
*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.
Disclaimer
According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES ""AS IS"" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY. In addition to other efforts to address potential vulnerabilities, IBM periodically updates the record of components contained in our product offerings. As part of that effort, if IBM identifies previously unidentified packages in a product/service inventory, we address relevant vulnerabilities regardless of CVE date. Inclusion of an older CVEID does not demonstrate that the referenced product has been used by IBM since that date, nor that IBM was aware of a vulnerability as of that date. We are making clients aware of relevant vulnerabilities as we become aware of them. "Affected Products and Versions" referenced in IBM Security Bulletins are intended to be only products and versions that are supported by IBM and have not passed their end-of-support or warranty date. Thus, failure to reference unsupported or extended-support products and versions in this Security Bulletin does not constitute a determination by IBM that they are unaffected by the vulnerability. Reference to one or more unsupported versions in this Security Bulletin shall not create an obligation for IBM to provide fixes for any unsupported or extended-support products or versions.
Document Location
Worldwide
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Document Information
Modified date:
14 April 2025
UID
ibm17229787