CVE-2025-32977
📋 TL;DR
This vulnerability allows unauthenticated attackers to upload malicious backup files to Quest KACE Systems Management Appliance due to weaknesses in signature validation. Successful exploitation could compromise system integrity. Affected versions include SMA 13.0.x before 13.0.385, 13.1.x before 13.1.81, 13.2.x before 13.2.183, 14.0.x before 14.0.341 (Patch 5), and 14.1.x before 14.1.101 (Patch 4).
💻 Affected Systems
- Quest KACE Systems Management Appliance (SMA)
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise allowing remote code execution, data theft, and lateral movement within the network.
Likely Case
Unauthorized file upload leading to system manipulation, potential backdoor installation, and privilege escalation.
If Mitigated
Limited impact with proper network segmentation and access controls preventing exploitation attempts.
🎯 Exploit Status
Technical details and proof-of-concept are publicly available in security advisories. Exploitation requires crafting malicious backup files but is straightforward.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 13.0.385, 13.1.81, 13.2.183, 14.0.341 (Patch 5), 14.1.101 (Patch 4)
Vendor Advisory: https://support.quest.com/kb/4379499/quest-response-to-kace-sma-vulnerabilities-cve-2025-32975-cve-2025-32976-cve-2025-32977-cve-2025-32978
Restart Required: Yes
Instructions:
1. Download the appropriate patch from Quest support portal. 2. Apply patch following vendor instructions. 3. Restart the SMA appliance. 4. Verify version is updated.
🔧 Temporary Workarounds
Network Access Restriction
allRestrict network access to SMA appliance to trusted IP addresses only.
Configure firewall rules to allow only specific source IPs to access SMA ports (typically 443/HTTPS)
Disable Unauthenticated Backup Upload
allIf possible, disable backup upload functionality for unauthenticated users via configuration.
Check SMA documentation for disabling specific API endpoints or backup upload features
🧯 If You Can't Patch
- Isolate SMA appliance in a segmented network with strict access controls
- Implement web application firewall (WAF) rules to block malicious backup file upload attempts
🔍 How to Verify
Check if Vulnerable:
Check SMA web interface or CLI for current version. Compare against affected versions listed in advisory.Check Version:
Check via SMA web interface (Admin > About) or SSH to appliance and run: cat /etc/versionVerify Fix Applied:
Verify version number matches patched versions: 13.0.385, 13.1.81, 13.2.183, 14.0.341, or 14.1.101.📡 Detection & Monitoring
Log Indicators:
- Unauthenticated backup upload attempts
- Failed signature validation logs
- Unusual file upload activity to backup endpoints
Network Indicators:
- HTTP POST requests to backup upload endpoints from unauthenticated sources
- Unusual traffic patterns to SMA appliance
SIEM Query:
source="sma_logs" AND (event="backup_upload" OR event="signature_validation_failed") AND user="unauthenticated"