CVE-2024-58338

10.0 CRITICAL

📋 TL;DR

Anevia Flamingo XL 3.2.9 contains a restricted shell escape vulnerability that allows remote attackers to bypass the sandboxed environment via the traceroute command. This enables command injection leading to full root access on the device. Organizations using Anevia Flamingo XL 3.2.9 are affected.

💻 Affected Systems

Products:
  • Anevia Flamingo XL
Versions: 3.2.9
Operating Systems: Embedded Linux
Default Config Vulnerable: ⚠️ Yes
Notes: The vulnerability exists in the default configuration where the traceroute command is accessible through the restricted shell environment.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Remote unauthenticated attacker gains full root access to the device, enabling complete system compromise, data theft, and persistent backdoor installation.

🟠

Likely Case

Remote attacker gains root shell access to the device, allowing them to modify configurations, intercept traffic, and use the device as a pivot point for further attacks.

🟢

If Mitigated

Attack is prevented through network segmentation, proper access controls, and disabling vulnerable services.

🌐 Internet-Facing: HIGH - The vulnerability can be exploited remotely without authentication, making internet-facing devices extremely vulnerable.
🏢 Internal Only: HIGH - Even internally, the vulnerability allows unauthenticated attackers to gain root access, posing significant risk to network security.

🎯 Exploit Status

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

Public exploit code is available on Exploit-DB (ID 51516), making this easily weaponizable by attackers with minimal technical skill.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Unknown

Vendor Advisory: https://www.ateme.com

Restart Required: No

Instructions:

Check vendor website for security updates. If no patch is available, implement workarounds immediately.

🔧 Temporary Workarounds

Disable traceroute command

linux

Remove or restrict access to the traceroute command in the restricted shell environment

# Remove traceroute binary or modify shell restrictions
# chmod 000 /usr/bin/traceroute
# Or modify shell configuration to block traceroute

Network segmentation

all

Isolate Anevia Flamingo XL devices from untrusted networks

# Configure firewall rules to restrict access
# iptables -A INPUT -s trusted_networks -p tcp --dport device_port -j ACCEPT
# iptables -A INPUT -p tcp --dport device_port -j DROP

🧯 If You Can't Patch

  • Immediately isolate affected devices from internet and untrusted networks
  • Implement strict network access controls and monitor for suspicious traceroute usage

🔍 How to Verify

Check if Vulnerable:

Check if device is running Anevia Flamingo XL version 3.2.9 and test if traceroute command can be used to execute arbitrary commands in restricted shell

Check Version:

# Check device version through web interface or CLI

Verify Fix Applied:

Verify traceroute command is no longer accessible or cannot be used for command injection in restricted shell

📡 Detection & Monitoring

Log Indicators:

  • Unusual traceroute command usage from restricted shell
  • Multiple failed authentication attempts followed by traceroute commands
  • Sudden root-level system changes

Network Indicators:

  • Unexpected outbound connections from Anevia devices
  • Traffic patterns matching exploit payloads

SIEM Query:

source="anevia" AND (command="traceroute" OR process="traceroute")

🔗 References

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