CVE-2023-0352
📋 TL;DR
The Akuvox E11 password recovery webpage is accessible without authentication, allowing attackers to download the device key file and reset the password to default. This affects users of Akuvox E11 devices with vulnerable firmware versions, potentially compromising device security and control.
💻 Affected Systems
- Akuvox E11
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
An attacker gains full administrative control of the device, enabling unauthorized access, data theft, or use as a foothold for further network attacks.
Likely Case
Attackers reset passwords to default, leading to unauthorized device access and potential disruption of operations.
If Mitigated
With proper network segmentation and access controls, impact is limited to isolated devices, reducing broader network compromise.
🎯 Exploit Status
Exploitation involves accessing a specific webpage without credentials, making it straightforward for attackers.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check vendor advisory for specific patched firmware version.
Vendor Advisory: https://www.cisa.gov/news-events/ics-advisories/icsa-23-068-01
Restart Required: Yes
Instructions:
1. Visit the vendor advisory for patch details. 2. Download the latest firmware from Akuvox. 3. Apply the update via device management interface. 4. Restart the device to activate changes.
🔧 Temporary Workarounds
Restrict Network Access
allBlock external access to the device's web interface using firewalls or network segmentation.
Disable Password Recovery Page
allIf supported, disable the vulnerable password recovery webpage via device configuration.
🧯 If You Can't Patch
- Isolate the device on a separate VLAN to limit attack surface.
- Implement strong network monitoring to detect unauthorized access attempts.
🔍 How to Verify
Check if Vulnerable:
Attempt to access the password recovery webpage without authentication; if accessible, device is vulnerable.Check Version:
Check device firmware version via web interface or CLI; refer to vendor documentation.Verify Fix Applied:
After patching, verify the password recovery page requires authentication or is disabled.📡 Detection & Monitoring
Log Indicators:
- Unauthorized access logs to password recovery page
- Failed authentication attempts followed by password resets
Network Indicators:
- Unusual HTTP requests to device-specific URLs
- Traffic spikes to device management ports
SIEM Query:
Example: 'source="akuvox-e11" AND url="/password_recovery" AND status=200'