{"id":86812,"date":"2026-03-30T09:57:42","date_gmt":"2026-03-30T09:57:42","guid":{"rendered":""},"modified":"-0001-11-30T00:00:00","modified_gmt":"-0001-11-30T00:00:00","slug":"cve-2025-7342-kubernetes-image-builder-security-issue-leading-to-potential-system-compromise-or-data-leakage","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-7342-kubernetes-image-builder-security-issue-leading-to-potential-system-compromise-or-data-leakage\/","title":{"rendered":"CVE-2025-7342: Kubernetes Image Builder Security Issue Leading to Potential System Compromise or Data Leakage<\/strong>"},"content":{"rendered":"

Overview<\/strong><\/p>\n

The vulnerability, identified as CVE-2025-7342, is a significant cybersecurity concern affecting Kubernetes Image Builder. This vulnerability exists due to the utilization of default credentials during the Windows image build process when employing Nutanix or VMware OVA providers. The affected organizations could face serious consequences including system compromise or data leakage, thereby underlining the need for immediate attention and mitigation.<\/p>\n

Vulnerability Summary<\/strong><\/p>\n

CVE ID: CVE-2025-7342
\nSeverity: High (CVSS 7.5)
\nAttack Vector: Local network
\nPrivileges Required: High (root access)
\nUser Interaction: None
\nImpact: Potential system compromise or data leakage<\/p>\n

Affected Products<\/strong><\/p>\n

Product | Affected Versions<\/p>\n

Kubernetes Image Builder | All versions prior to the patch<\/p>\n

How the Exploit Works<\/strong><\/p>\n

The exploit takes advantage of the default credentials being enabled in the Kubernetes Image Builder during the Windows image build process. An attacker with access to the build VM could potentially modify the image while the build is in progress. It requires the attacker to have root access, and once exploited, it could lead to system compromise or data leakage.<\/p>\n

Conceptual Example Code<\/strong><\/p>\n

While the exact code to exploit this vulnerability is not available, a conceptual example would involve an attacker gaining access to the build VM and then modifying the image during the build process. The pseudocode might look something like this:<\/p>\n

# Gain root access to the build VM\nsudo su\n# Navigate to the location of the image being built\ncd \/path\/to\/image\n# Modify the image with malicious code\necho 'malicious code' >> image_file<\/code><\/pre>\n
This example is highly conceptual and the actual exploit could be more complex, requiring a deep understanding of the Kubernetes Image Builder’s internals.<\/p>\n
Mitigation<\/strong><\/p>\n
Users are advised to apply the vendor patch as soon as it becomes available. Until then, a Web Application Firewall (WAF) or Intrusion Detection System (IDS) could be used as temporary mitigation.<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview The vulnerability, identified as CVE-2025-7342, is a significant cybersecurity concern affecting Kubernetes Image Builder. This vulnerability exists due to the utilization of default credentials during the Windows image build process when employing Nutanix or VMware OVA providers. The affected organizations could face serious consequences including system compromise or data leakage, thereby underlining the need […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[],"tags":[],"vendor":[],"product":[],"attack_vector":[],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-86812","post","type-post","status-publish","format-standard","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t