CVE-2024-5403
📋 TL;DR
This vulnerability allows remote attackers with administrator privileges to execute arbitrary system commands on ASKEY 5G NR Small Cell devices due to improper input filtering. It affects organizations using these cellular infrastructure devices. Attackers can gain full control of affected systems.
💻 Affected Systems
- ASKEY 5G NR Small Cell
⚠️ 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 compromise of the small cell device allowing attackers to disrupt cellular service, intercept communications, pivot to internal networks, or deploy persistent malware.
Likely Case
Attackers with stolen or compromised admin credentials gain full system control to modify configurations, disrupt service, or use the device as a foothold for further attacks.
If Mitigated
With proper network segmentation, credential protection, and monitoring, impact is limited to the isolated device with quick detection and remediation.
🎯 Exploit Status
Exploitation requires admin credentials but command injection is straightforward once authenticated. Attackers with credential access can easily weaponize.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not specified in references
Vendor Advisory: https://www.twcert.org.tw/tw/cp-132-7821-87e38-1.html
Restart Required: Yes
Instructions:
1. Contact ASKEY for specific firmware update. 2. Download latest firmware from vendor portal. 3. Backup current configuration. 4. Apply firmware update via admin interface. 5. Restart device. 6. Verify fix and restore configuration if needed.
🔧 Temporary Workarounds
Restrict Admin Access
allLimit administrative access to specific trusted IP addresses and networks only
Configure firewall rules to restrict admin interface access to management VLAN only
Credential Hardening
allImplement strong, unique admin passwords and enable multi-factor authentication if supported
Change default credentials to complex passwords
Enable MFA if available in admin settings
🧯 If You Can't Patch
- Isolate affected devices in dedicated network segments with strict firewall rules
- Implement network monitoring and IDS/IPS rules to detect command injection attempts
🔍 How to Verify
Check if Vulnerable:
Check if device responds to command injection attempts in admin interface input fields (test in controlled environment only)Check Version:
Check firmware version in device admin interface under System InformationVerify Fix Applied:
After patching, attempt to reproduce command injection in test environment to confirm remediation📡 Detection & Monitoring
Log Indicators:
- Unusual command execution in system logs
- Multiple failed admin login attempts followed by successful login
- Suspicious commands in web server logs
Network Indicators:
- Unusual outbound connections from small cell device
- Command and control traffic patterns
- Unexpected protocol usage
SIEM Query:
source="small-cell-logs" AND (command="*;*" OR command="*|*" OR command="*`*" OR command="*$(*)")