CVE-2024-23626

9.0 CRITICAL

📋 TL;DR

A command injection vulnerability in the Motorola MR2600 router's SaveSysLogParams parameter allows authenticated remote attackers to execute arbitrary commands on the device. Authentication can be bypassed, enabling unauthenticated attackers to gain full control. This affects all users of Motorola MR2600 routers with vulnerable firmware.

💻 Affected Systems

Products:
  • Motorola MR2600
Versions: All firmware versions prior to patched release
Operating Systems: Embedded Linux-based router OS
Default Config Vulnerable: ⚠️ Yes
Notes: All default configurations are vulnerable. The web management interface must be accessible for exploitation.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete device compromise allowing attacker to install persistent malware, intercept all network traffic, pivot to internal networks, and use device as botnet node.

🟠

Likely Case

Router takeover leading to DNS hijacking, credential theft from network traffic, and denial of service to connected devices.

🟢

If Mitigated

Limited impact if device is behind firewall with strict inbound rules and authentication bypass is prevented.

🌐 Internet-Facing: HIGH - Routers are typically internet-facing devices, and authentication bypass makes exploitation trivial from anywhere.
🏢 Internal Only: MEDIUM - Internal attackers could exploit if they gain network access, but external exposure is primary concern.

🎯 Exploit Status

Public PoC: ⚠️ Yes
Weaponized: LIKELY
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

Detailed exploit analysis published by Exodus Intelligence. Authentication bypass makes exploitation straightforward.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Unknown

Vendor Advisory: Not available

Restart Required: Yes

Instructions:

1. Check Motorola support site for firmware updates
2. Download latest firmware
3. Access router web interface
4. Navigate to firmware update section
5. Upload and apply update
6. Reboot router

🔧 Temporary Workarounds

Disable Remote Management

all

Prevent external access to web management interface

Access router admin panel -> Advanced -> Remote Management -> Disable

Restrict Management Interface Access

all

Limit web interface access to specific IP addresses

Access router admin panel -> Firewall -> Access Control -> Add rules to restrict admin interface

🧯 If You Can't Patch

  • Replace vulnerable router with different model
  • Place router behind dedicated firewall with strict inbound rules

🔍 How to Verify

Check if Vulnerable:

Check firmware version in router web interface (Admin -> Status). If no recent security updates applied, assume vulnerable.

Check Version:

curl -s http://router-ip/cgi-bin/getcfg.cgi | grep -i version

Verify Fix Applied:

Verify firmware version matches latest available from vendor. Test if SaveSysLogParams parameter properly validates input.

📡 Detection & Monitoring

Log Indicators:

  • Unusual commands in system logs
  • Multiple failed authentication attempts followed by successful access
  • Unexpected processes running on router

Network Indicators:

  • Unusual outbound connections from router
  • DNS queries to suspicious domains
  • Port scanning originating from router

SIEM Query:

source="router.log" AND ("SaveSysLogParams" OR "command injection" OR suspicious shell commands)

🔗 References

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