CVE-2025-55625
📋 TL;DR
An open redirect vulnerability in Reolink firmware allows attackers to craft URLs that redirect users to malicious websites. This affects users of Reolink devices running vulnerable firmware versions. The vendor disputes this as a vulnerability, claiming the behavior is intentional for Alexa integration.
💻 Affected Systems
- Reolink cameras and NVRs
📦 What is this software?
Reolink by Reolink
⚠️ Risk & Real-World Impact
Worst Case
Users could be tricked into visiting phishing sites that steal credentials or deliver malware, potentially leading to account compromise or system infection.
Likely Case
Attackers could use crafted links in phishing campaigns to redirect users to malicious sites, though effectiveness depends on user interaction.
If Mitigated
With proper user education and URL filtering, the impact is limited to failed phishing attempts with minimal damage.
🎯 Exploit Status
Exploitation requires user interaction (clicking a crafted link). No authentication is needed to trigger the redirect.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not applicable - vendor disputes vulnerability
Vendor Advisory: None available
Restart Required: No
Instructions:
No official patch available as vendor disputes this is a vulnerability. Monitor for future firmware updates that may address the issue.
🔧 Temporary Workarounds
User Education and URL Filtering
allEducate users about phishing risks and implement URL filtering at network perimeter
Disable Unnecessary Features
Reolink devicesIf Alexa integration is not needed, consider disabling related features in device settings
🧯 If You Can't Patch
- Implement network-level URL filtering to block malicious redirects
- Use web application firewalls to detect and block open redirect patterns
🔍 How to Verify
Check if Vulnerable:
Test with crafted URLs containing redirect parameters to external domainsCheck Version:
Check firmware version in Reolink device web interface or mobile appVerify Fix Applied:
Verify that redirects only go to approved domains and external redirects are blocked📡 Detection & Monitoring
Log Indicators:
- Unusual redirect patterns in web server logs
- Multiple failed redirect attempts
Network Indicators:
- HTTP 302 redirects to external domains from Reolink devices
- Suspicious URL parameters in requests
SIEM Query:
source="reolink" AND (url="*redirect=*" OR status=302) AND dest_ip NOT IN [approved_domains]