CVE-2022-31459: Owl Labs Meeting Owl Information Disclosure

CVE-2022-31459 Overview

CVE-2022-31459 is a cryptographic vulnerability affecting Owl Labs Meeting Owl 5.2.0.15 that allows attackers to retrieve the passcode hash via a certain c 10 value over Bluetooth. This weakness in inadequate encryption strength (CWE-326) enables nearby attackers within Bluetooth range to extract sensitive authentication data from the videoconferencing device.

Critical Impact

Attackers within adjacent network proximity can extract passcode hashes from vulnerable Meeting Owl devices via Bluetooth, potentially compromising device security and enabling unauthorized access to enterprise videoconferencing systems.

Affected Products

• Owl Labs Meeting Owl Pro Firmware versions up to 5.2.0.15
• Owl Labs Meeting Owl Pro hardware devices
• Enterprise videoconferencing deployments using affected firmware

Discovery Timeline

• 2022-06-02 - CVE-2022-31459 published to NVD
• 2024-11-21 - Last updated in NVD database

Technical Details for CVE-2022-31459

Vulnerability Analysis

This vulnerability stems from inadequate encryption strength in how the Owl Labs Meeting Owl device handles passcode protection over Bluetooth communications. The device exposes a Bluetooth Low Energy (BLE) characteristic that, when queried with a specific command value (c 10), returns the passcode hash. This architectural flaw allows any attacker within Bluetooth range to extract the authentication hash without requiring prior authentication or authorization.

The attack requires adjacent network access, meaning the attacker must be within Bluetooth communication range of the vulnerable device, typically around 10 meters for standard Bluetooth. However, no user interaction or special privileges are required to exploit this vulnerability, making it particularly dangerous in shared office environments and conference rooms where these devices are commonly deployed.

Root Cause

The root cause of CVE-2022-31459 is classified under CWE-326 (Inadequate Encryption Strength). The Meeting Owl device's Bluetooth implementation fails to properly protect sensitive passcode information. Rather than implementing robust access controls or strong cryptographic protections for authentication data, the device inadvertently exposes the passcode hash through its BLE interface. The weak encryption mechanism used to protect this sensitive data can be bypassed by simply sending the appropriate Bluetooth command.

Attack Vector

The attack vector is adjacent network-based, requiring the attacker to be within Bluetooth range of the target device. An attacker can exploit this vulnerability by:

1. Scanning for nearby Meeting Owl devices using standard Bluetooth enumeration tools
2. Connecting to the device's BLE interface without authentication
3. Sending the specific c 10 command to the appropriate characteristic
4. Receiving the passcode hash in the response
5. Potentially cracking the weak hash offline to recover the plaintext passcode

Once the passcode is obtained, attackers could gain unauthorized control over the videoconferencing device, potentially enabling eavesdropping on meetings, accessing device configurations, or using the compromised device as a pivot point for further attacks on the corporate network.

The vulnerability is detailed in the Modzero Security Disclosure Report which provides comprehensive technical analysis of the Meeting Owl's security architecture.

Detection Methods for CVE-2022-31459

Indicators of Compromise

• Unusual Bluetooth scanning activity targeting Meeting Owl devices in conference rooms
• Unexpected BLE connections to Meeting Owl devices outside of normal usage patterns
• Multiple failed authentication attempts following potential passcode hash extraction
• Unauthorized configuration changes to Meeting Owl devices

Detection Strategies

• Monitor Bluetooth activity in sensitive areas where Meeting Owl devices are deployed
• Implement network segmentation to isolate IoT/videoconferencing devices
• Review Meeting Owl device logs for unexpected connection attempts or configuration changes
• Deploy Bluetooth intrusion detection systems in high-security environments

Monitoring Recommendations

• Conduct regular firmware version audits across all deployed Meeting Owl devices
• Establish baseline Bluetooth activity patterns to identify anomalous behavior
• Monitor for security advisories from Owl Labs regarding firmware updates
• Implement physical security controls to limit unauthorized proximity to devices

How to Mitigate CVE-2022-31459

Immediate Actions Required

• Update all affected Meeting Owl devices to the latest firmware version immediately
• Review the Owl Labs Update Blog for official guidance
• Audit all Meeting Owl devices in your environment and document firmware versions
• Consider temporary device isolation or removal from sensitive meeting spaces until patched

Patch Information

Owl Labs has released firmware updates to address this vulnerability. Organizations should consult the Owl Labs Update Blog for specific patch details and update instructions. Ensure all Meeting Owl Pro devices are updated beyond version 5.2.0.15 to remediate this vulnerability.

The firmware update process typically involves using the Owl Labs companion application or management console to push updates to deployed devices. Organizations with large deployments should prioritize updates based on device exposure and meeting room sensitivity.

Workarounds

• Physically relocate Meeting Owl devices to areas with restricted physical access
• Disable Bluetooth functionality on devices when not actively required for operation
• Implement RF shielding in conference rooms to limit Bluetooth signal propagation
• Enhance physical security perimeter to prevent unauthorized individuals from approaching within Bluetooth range
• Consider temporary replacement with alternative videoconferencing solutions until firmware can be updated