CVE-2014-2650
📋 TL;DR
CVE-2014-2650 is an OS command injection vulnerability in Unify OpenStage/OpenScape Desk Phone IP web management interfaces. Attackers can execute arbitrary commands with root privileges by injecting malicious input through the web interface. This affects all OpenStage/OpenScape Desk Phone IP devices running firmware versions before V3 R3.11.0.
💻 Affected Systems
- Unify OpenStage Desk Phone IP
- Unify OpenScape Desk Phone IP
📦 What is this software?
Openscape Desk Phone Ip 35g Eco Firmware by Atos
View all CVEs affecting Openscape Desk Phone Ip 35g Eco Firmware →
Openscape Desk Phone Ip 35g Firmware by Atos
View all CVEs affecting Openscape Desk Phone Ip 35g Firmware →
⚠️ Risk & Real-World Impact
Worst Case
Complete device compromise allowing attackers to execute arbitrary commands as root, potentially pivoting to internal networks, installing persistent backdoors, or bricking devices.
Likely Case
Remote code execution leading to device takeover, credential theft, or use as a foothold for lateral movement within the network.
If Mitigated
Limited impact if devices are isolated, patched, or have web management disabled, though physical access could still exploit local interfaces.
🎯 Exploit Status
Exploitation requires network access to the web interface but no authentication. Public exploit code exists demonstrating command injection.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: V3 R3.11.0 and later
Vendor Advisory: https://networks.unify.com/security/advisories/OBSO-1403-01.pdf
Restart Required: Yes
Instructions:
1. Download firmware V3 R3.11.0 or later from Unify support portal. 2. Upload firmware via web interface or TFTP. 3. Reboot device after installation. 4. Verify firmware version in web interface.
🔧 Temporary Workarounds
Disable Web Management Interface
allDisable the vulnerable web interface if not required for management
Access phone web interface > Administration > Network > HTTP/HTTPS > Disable
Network Segmentation
allIsolate phones in separate VLAN without internet access
🧯 If You Can't Patch
- Segment phones on isolated network VLAN with strict firewall rules
- Disable web management interface and use alternative management methods
🔍 How to Verify
Check if Vulnerable:
Check firmware version via web interface: Login > System Information > Firmware Version. If version is below V3 R3.11.0, device is vulnerable.Check Version:
curl -k https://<phone-ip>/cgi-bin/version or check web interface System InformationVerify Fix Applied:
Verify firmware version is V3 R3.11.0 or higher in System Information page. Test web interface for command injection attempts.📡 Detection & Monitoring
Log Indicators:
- Unusual command execution in system logs
- Web interface access with suspicious parameters containing shell metacharacters
- Failed authentication attempts followed by command injection patterns
Network Indicators:
- HTTP requests to phone web interface with shell command patterns in parameters
- Outbound connections from phones to unexpected destinations
SIEM Query:
source="phone-logs" AND ("cmd=" OR "exec=" OR "system(" OR "$" OR "|" OR ";" OR "`")🔗 References
- http://assets.yourcircuit.com/Internet/web/Container%20Site/Misc/Footer-content/privacy-policy/security-advisories.aspx
- https://networks.unify.com/security/advisories/OBSO-1403-01.pdf
- http://assets.yourcircuit.com/Internet/web/Container%20Site/Misc/Footer-content/privacy-policy/security-advisories.aspx
- https://networks.unify.com/security/advisories/OBSO-1403-01.pdf
