CVE-2024-36480
📋 TL;DR
CVE-2024-36480 is a critical vulnerability in Ricoh Streamline NX PC Client versions 3.7.2 and earlier that uses hard-coded credentials. If exploited, attackers can gain LocalSystem Account privileges on affected Windows PCs, enabling complete system compromise. Organizations using vulnerable versions of this Ricoh printing/scanning software are at risk.
💻 Affected Systems
- Ricoh Streamline NX PC Client
⚠️ 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
Full system compromise with LocalSystem privileges leading to complete data theft, ransomware deployment, persistent backdoor installation, and lateral movement across the network.
Likely Case
Local privilege escalation leading to credential harvesting, installation of malware, and unauthorized access to sensitive documents and system resources.
If Mitigated
Limited impact if proper network segmentation, endpoint protection, and least privilege principles are implemented, though local system access remains possible.
🎯 Exploit Status
Exploitation requires access to the system running the vulnerable client. The hard-coded credentials would need to be discovered/reverse-engineered, but once known, exploitation is straightforward.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version 3.7.3 or later
Vendor Advisory: https://www.ricoh.com/products/security/vulnerabilities/vul?id=ricoh-2024-000005
Restart Required: Yes
Instructions:
1. Download Ricoh Streamline NX PC Client version 3.7.3 or later from Ricoh's official website. 2. Uninstall the current vulnerable version. 3. Install the updated version. 4. Restart the system.
🔧 Temporary Workarounds
Uninstall vulnerable client
windowsRemove the Ricoh Streamline NX PC Client if not essential for operations
Control Panel > Programs > Uninstall a program > Select 'Ricoh Streamline NX PC Client' > Uninstall
Network isolation
allRestrict network access to systems running the vulnerable client using firewall rules
🧯 If You Can't Patch
- Implement strict network segmentation to isolate systems with vulnerable client
- Apply principle of least privilege and monitor for unusual LocalSystem account activity
🔍 How to Verify
Check if Vulnerable:
Check installed programs for 'Ricoh Streamline NX PC Client' and verify version is 3.7.2 or earlierCheck Version:
wmic product where name='Ricoh Streamline NX PC Client' get versionVerify Fix Applied:
Verify installed version is 3.7.3 or later in Programs and Features📡 Detection & Monitoring
Log Indicators:
- Unusual LocalSystem account activity
- Process creation with SYSTEM privileges from Ricoh client processes
- Authentication attempts using hard-coded credentials
Network Indicators:
- Unusual outbound connections from systems with Ricoh client
- Lateral movement attempts from affected systems
SIEM Query:
EventID=4688 AND NewProcessName CONTAINS 'Ricoh' AND SubjectUserName='SYSTEM'