Overview
The cybersecurity realm is repeatedly facing new and evolving challenges. One such recent development pertains to the IBM Storage Virtualize versions 8.4, 8.5, 8.6, and 8.7. A significant vulnerability, identified as CVE-2025-36120, has demonstrated the potential to allow authenticated users to escalate their privileges through an SSH session. This vulnerability is of particular concern due to the incorrect authorization checks involved in accessing resources. Systems administrators, cybersecurity professionals, and users of IBM Storage Virtualize should be aware of this vulnerability, its potential impacts, and the steps necessary to mitigate it.
Vulnerability Summary
CVE ID: CVE-2025-36120
Severity: High (CVSS: 8.8)
Attack Vector: Network
Privileges Required: Low
User Interaction: Required
Impact: System compromise and potential data leakage
Affected Products
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Product | Affected Versions
IBM Storage Virtualize | 8.4, 8.5, 8.6, 8.7
How the Exploit Works
This exploit takes advantage of the incorrect authorization checks in IBM Storage Virtualize. An authenticated user can initiate an SSH session and, due to the faulty authorization checks, escalate their user privileges. This escalation can provide the user with administrative rights, opening the door to unauthorized access to sensitive data or potentially compromising the system.
Conceptual Example Code
Here is a conceptual example of how the vulnerability might be exploited. This shell command is a representation, not an actual exploit code.
ssh user@target.system.com -t 'bash -i'
# After successful login
sudo -l
# If the system is vulnerable, it would allow the user to execute commands with sudo
sudo command-to-escalate-privilegesIn this example, an authenticated user logs into the system via SSH. The user then checks if they can execute commands with sudo. If the system is vulnerable, the user would be allowed to run commands with escalated privileges, leading to potential system compromise or data leakage.
Mitigation
IBM has recognized this vulnerability and issued a patch to correct the authorization checks. All users of IBM Storage Virtualize versions 8.4, 8.5, 8.6, and 8.7 are strongly encouraged to apply this patch as soon as possible. In the interim, users can also use a Web Application Firewall (WAF) or Intrusion Detection System (IDS) for temporary mitigation. However, these should not be considered long-term solutions and can only serve as stopgap measures until the patch can be applied.