CVE-2025-57788
📋 TL;DR
This vulnerability allows unauthenticated attackers to execute API calls without credentials in Commvault software, bypassing authentication mechanisms. It affects systems using the vulnerable login mechanism, potentially exposing sensitive data and functionality. Organizations running affected Commvault versions are at risk.
💻 Affected Systems
- Commvault software with vulnerable login mechanism
📦 What is this software?
Commvault by Commvault
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise through chained attacks leading to remote code execution, data exfiltration, and lateral movement within the environment.
Likely Case
Unauthorized access to sensitive backup data, configuration information, and potential privilege escalation through API manipulation.
If Mitigated
Limited exposure through RBAC controls, but still allows unauthorized API calls within the attacker's discovered capabilities.
🎯 Exploit Status
Attackers can execute API calls without authentication, but full exploitation may require additional steps or chaining with other vulnerabilities.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Refer to Commvault security advisory for specific patched versions
Vendor Advisory: https://documentation.commvault.com/securityadvisories/CV_2025_08_3.html
Restart Required: No
Instructions:
1. Review Commvault security advisory CV_2025_08_3 2. Apply the recommended patch/update 3. Verify authentication mechanisms are functioning correctly
🔧 Temporary Workarounds
Network Segmentation
allRestrict access to Commvault management interfaces to trusted networks only
API Access Controls
allImplement additional API gateway controls and rate limiting
🧯 If You Can't Patch
- Implement strict network access controls to limit exposure to trusted IPs only
- Enable comprehensive logging and monitoring for unauthorized API access attempts
🔍 How to Verify
Check if Vulnerable:
Check Commvault version against security advisory and test authentication bypass using documented methodsCheck Version:
Check Commvault administrative console or documentation for version informationVerify Fix Applied:
Verify patch installation and test that authentication is required for API calls📡 Detection & Monitoring
Log Indicators:
- Unauthenticated API calls
- Failed authentication attempts followed by successful API access
- Unusual API endpoint access patterns
Network Indicators:
- API requests without authentication headers
- Direct API calls bypassing normal authentication flow
SIEM Query:
source="commvault" AND (event_type="api_call" AND auth_status="none") OR (auth_failure AND immediate_api_success)