CVE-2013-2570
📋 TL;DR
This CVE describes a command injection vulnerability in Zavio IP Cameras that allows remote attackers to execute arbitrary commands on affected devices. Attackers can exploit this by injecting malicious commands into the NTP server parameter, potentially gaining full control of the camera. All Zavio IP Camera users running firmware versions up to 1.6.3 are affected.
💻 Affected Systems
- Zavio IP Cameras
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete device compromise allowing attackers to execute arbitrary commands, install persistent backdoors, pivot to internal networks, or use the camera as part of a botnet.
Likely Case
Remote code execution leading to camera compromise, video stream interception, device repurposing for malicious activities, or denial of service.
If Mitigated
Limited impact if cameras are isolated in separate network segments with strict firewall rules and no internet exposure.
🎯 Exploit Status
Exploitation is straightforward with publicly available proof-of-concept code. The vulnerability requires no authentication and has simple command injection syntax.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Firmware versions after 1.6.3
Vendor Advisory: https://www.coresecurity.com/advisories/zavio-ip-cameras-multiple-vulnerabilities
Restart Required: Yes
Instructions:
1. Download latest firmware from Zavio support site. 2. Backup camera configuration. 3. Upload firmware via web interface. 4. Perform factory reset. 5. Restore configuration. 6. Verify firmware version is >1.6.3.
🔧 Temporary Workarounds
Network Segmentation
allIsolate cameras in separate VLAN with strict firewall rules blocking all inbound traffic except from authorized NTP servers.
NTP Server Restriction
allConfigure firewall to only allow outbound NTP traffic to trusted NTP servers, preventing command injection payloads from reaching external servers.
🧯 If You Can't Patch
- Immediately disconnect affected cameras from internet and place behind strict network segmentation
- Implement application-layer firewall rules to block requests containing shell metacharacters in NTP parameter
🔍 How to Verify
Check if Vulnerable:
Check firmware version via web interface (Settings > System > Firmware Version). If version is 1.6.3 or lower, device is vulnerable.Check Version:
curl -s http://[camera-ip]/cgi-bin/view/param | grep -i versionVerify Fix Applied:
Verify firmware version is greater than 1.6.3 and test NTP parameter with safe test payloads to confirm input validation.📡 Detection & Monitoring
Log Indicators:
- Unusual NTP server entries containing shell metacharacters
- Multiple failed CGI execution attempts
- Unexpected process execution from CGI binaries
Network Indicators:
- HTTP POST requests to /cgi-bin/view/param with shell metacharacters in parameters
- Outbound connections from cameras to unusual IP addresses
SIEM Query:
source="camera_logs" AND (uri="/cgi-bin/view/param" AND (param="*;*" OR param="*|*" OR param="*`*" OR param="*$(*"))🔗 References
- http://www.securityfocus.com/bid/60188
- https://exchange.xforce.ibmcloud.com/vulnerabilities/84567
- https://packetstormsecurity.com/files/cve/CVE-2013-2570
- https://www.coresecurity.com/advisories/zavio-ip-cameras-multiple-vulnerabilities
- http://www.securityfocus.com/bid/60188
- https://exchange.xforce.ibmcloud.com/vulnerabilities/84567
- https://packetstormsecurity.com/files/cve/CVE-2013-2570
- https://www.coresecurity.com/advisories/zavio-ip-cameras-multiple-vulnerabilities
