{"id":26102,"date":"2025-04-18T05:06:24","date_gmt":"2025-04-18T05:06:24","guid":{"rendered":""},"modified":"2025-05-19T23:21:07","modified_gmt":"2025-05-19T23:21:07","slug":"cve-2025-23391-incorrect-privilege-assignment-in-suse-rancher-potentially-leading-to-system-compromise","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-23391-incorrect-privilege-assignment-in-suse-rancher-potentially-leading-to-system-compromise\/","title":{"rendered":"CVE-2025-23391: Incorrect Privilege Assignment in SUSE Rancher Potentially Leading to System Compromise<\/strong>"},"content":{"rendered":"

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

CVE-2025-23391 is a critical cybersecurity vulnerability that exists in SUSE Rancher, a popular open-source software for managing Kubernetes at scale. This vulnerability can allow Restricted Administrators to escalate their privileges by changing the passwords of Administrators and subsequently taking over their accounts. This vulnerability is significant as it could potentially lead<\/a> to unauthorized system control, compromising system integrity and confidentiality and possibly resulting in data leakage. Given the widespread use of SUSE Rancher in managing applications in large scale cloud-native environments, it is crucial that administrators and users are aware of this vulnerability<\/a> and apply the necessary mitigations.<\/p>\n

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

CVE ID: CVE-2025-23391
\nSeverity: Critical (9.1 CVSS Severity Score)
\nAttack Vector: Network
\nPrivileges Required: Low (Restricted Administrator)
\nUser Interaction: None
\nImpact: Potential system<\/a> compromise and data leakage<\/p>\n

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

Product | Affected Versions<\/p>\n

SUSE Rancher | 2.8.0 to 2.8.14
\nSUSE Rancher | 2.9.0 to 2.9.8
\nSUSE Rancher | 2.10.0 to 2.10.4<\/p>\n

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

The exploit takes advantage of a flaw in the privilege assignment<\/a> mechanism within SUSE Rancher. A Restricted Administrator, who typically would not have the authority to alter Administrator accounts, is able to change the passwords of these privileged<\/a> accounts due to the vulnerability. Once the password has been changed, the Restricted Administrator can take over the Administrator account, therefore gaining unauthorized access to system resources beyond their original scope of control<\/a>.<\/p>\n

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

The actual exploitation of this vulnerability would be dependent on the specific configuration<\/a> and usage of the system. However, conceptually, the attack might involve an HTTP POST request to the endpoint responsible for password changes<\/a>. For example:<\/p>\n

POST \/api\/v1\/users\/{admin_id}\/password HTTP\/1.1\nHost: rancher.example.com\nContent-Type: application\/json\nAuthorization: Bearer {restricted_admin_token}\n{\n\"newPassword\": \"malicious_password\"\n}<\/code><\/pre>\n
In this conceptual example, `{admin_id}` would be replaced with the ID of the targeted Administrator account<\/a>, and `{restricted_admin_token}` would be replaced with a valid session token of the Restricted Administrator. The `newPassword` field would be filled with the attacker’s chosen password.
\nThis is purely an illustrative example; actual exploitation may differ based on the system’s<\/a> setup and configuration.<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview CVE-2025-23391 is a critical cybersecurity vulnerability that exists in SUSE Rancher, a popular open-source software for managing Kubernetes at scale. This vulnerability can allow Restricted Administrators to escalate their privileges by changing the passwords of Administrators and subsequently taking over their accounts. This vulnerability is significant as it could potentially lead to unauthorized system […]<\/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":[1],"tags":[],"vendor":[89],"product":[],"attack_vector":[],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-26102","post","type-post","status-publish","format-standard","hentry","category-uncategorized","vendor-kubernetes"],"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