CVE-2025-36074 Overview
IBM Security Verify Directory (Container) versions 10.0.0 through 10.0.0.3 contains an unrestricted file upload vulnerability (CWE-434) due to insufficient file type validation. This security flaw allows a privileged user to upload malicious files into the system, which can subsequently be leveraged to conduct further attacks against the affected environment or distributed to victims.
Critical Impact
Privileged attackers can upload malicious files to compromise system integrity and potentially pivot to attack other systems or users.
Affected Products
- IBM Security Verify Directory (Container) 10.0.0
- IBM Security Verify Directory (Container) 10.0.0.1
- IBM Security Verify Directory (Container) 10.0.0.2
- IBM Security Verify Directory (Container) 10.0.0.3
Discovery Timeline
- April 23, 2026 - CVE-2025-36074 published to NVD
- April 23, 2026 - Last updated in NVD database
Technical Details for CVE-2025-36074
Vulnerability Analysis
This vulnerability stems from improper input validation in the file upload functionality of IBM Security Verify Directory. The application fails to adequately validate the file type during the upload process, creating an opportunity for authenticated privileged users to bypass intended security controls. While the requirement for elevated privileges limits the attack surface, successful exploitation could lead to significant impacts on system integrity and partial availability degradation.
The unrestricted file upload weakness allows an attacker with administrative or high-privilege access to introduce malicious content into the containerized directory service environment. Once uploaded, these files could be used for various malicious purposes including serving as a staging point for additional attacks, distributing malware to other users, or potentially achieving code execution within the container environment.
Root Cause
The root cause of CVE-2025-36074 is CWE-434: Unrestricted Upload of File with Dangerous Type. The IBM Security Verify Directory application lacks proper server-side validation to verify that uploaded files match allowed file types. This missing validation allows privileged users to upload files with arbitrary extensions and content, bypassing any client-side restrictions that may exist.
Attack Vector
The attack is conducted over the network against the IBM Security Verify Directory web interface. An attacker must first authenticate with high-privilege credentials to access the file upload functionality. Once authenticated, the attacker can craft a malicious file (such as a web shell, executable, or script) and upload it through the vulnerable file upload mechanism.
The uploaded malicious file can then be used to:
- Distribute malware to other users who access the file
- Execute unauthorized code within the container environment
- Establish persistence within the affected system
- Pivot to attack other connected systems or services
Detection Methods for CVE-2025-36074
Indicators of Compromise
- Unusual file uploads by privileged accounts, particularly files with executable extensions (.php, .jsp, .sh, .exe)
- Unexpected files appearing in upload directories that don't match normal business file types
- Access logs showing privileged users uploading files at unusual times or frequencies
- Network traffic indicating data exfiltration or command-and-control communication from the container
Detection Strategies
- Monitor file upload activities within IBM Security Verify Directory for unexpected file types
- Implement file integrity monitoring (FIM) on container storage volumes to detect unauthorized file additions
- Review authentication logs for suspicious privileged account activity preceding file uploads
- Deploy content inspection capabilities to analyze uploaded file contents for malicious signatures
Monitoring Recommendations
- Enable verbose logging for all file upload operations in IBM Security Verify Directory
- Configure alerts for uploads of potentially dangerous file types (scripts, executables, web shells)
- Implement user behavior analytics to detect anomalous privileged account activities
- Regularly audit uploaded files and compare against known-good baselines
How to Mitigate CVE-2025-36074
Immediate Actions Required
- Review and upgrade IBM Security Verify Directory to a patched version as specified in the IBM security advisory
- Audit existing uploaded files for potentially malicious content
- Restrict privileged account access to only essential personnel
- Implement additional file type validation at the network or application layer as an interim control
Patch Information
IBM has released a security update to address this vulnerability. Administrators should consult the IBM Support Page for detailed patch instructions and download links for the corrected version of IBM Security Verify Directory (Container).
Workarounds
- Implement strict file type whitelisting at the web application firewall (WAF) level
- Disable or restrict the file upload functionality until the patch can be applied
- Enforce principle of least privilege for all administrative accounts
- Deploy additional endpoint protection on systems hosting IBM Security Verify Directory containers to detect and block malicious files
# Example: Restrict file upload permissions in container environment
# Consult IBM documentation for specific configuration options
# Limit privileged account access
kubectl patch role verify-directory-admin -n verify-directory \
--type='json' \
-p='[{"op": "remove", "path": "/rules/0/verbs/0"}]'
# Enable additional logging for file operations
export VERIFY_DIRECTORY_LOG_LEVEL=DEBUG
export VERIFY_DIRECTORY_AUDIT_FILE_OPS=true
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
