CVE-2018-25138

Comprehensive Technical Analysis of CVE-2018-25138

1. Vulnerability Assessment and Severity Evaluation

CVE-2018-25138 affects the FLIR AX8 Thermal Camera version 1.32.16. The vulnerability involves hard-coded SSH and web panel credentials that cannot be changed through normal camera operations. This issue is critical because it allows attackers to gain unauthorized shell access and login to multiple camera interfaces using predefined username and password combinations.

CVSS Score: 9.8

• Attack Vector (AV): Network
• Attack Complexity (AC): Low
• Privileges Required (PR): None
• User Interaction (UI): None
• Scope (S): Unchanged
• Confidentiality (C): High
• Integrity (I): High
• Availability (A): High

The high CVSS score indicates a severe vulnerability that can be easily exploited with significant impact on the confidentiality, integrity, and availability of the affected system.

2. Potential Attack Vectors and Exploitation Methods

Attack Vectors:

• Network Access: Attackers can exploit this vulnerability remotely over the network.
• Credential Abuse: The hard-coded credentials can be used to gain unauthorized access to the camera's SSH and web panel interfaces.

Exploitation Methods:

• SSH Access: Attackers can use the hard-coded SSH credentials to gain shell access to the camera, allowing them to execute commands and potentially compromise the entire system.
• Web Panel Access: Attackers can use the hard-coded web panel credentials to log in to the camera's web interface, allowing them to view and modify camera settings, access video feeds, and potentially exfiltrate data.

3. Affected Systems and Software Versions

Affected Systems:

• FLIR AX8 Thermal Camera

Affected Software Versions:

• Version 1.32.16

4. Recommended Mitigation Strategies

Immediate Actions:

• Network Segmentation: Isolate the affected cameras on a separate network segment to limit access.
• Firewall Rules: Implement strict firewall rules to restrict access to the camera's SSH and web panel interfaces.
• Monitoring: Increase monitoring of network traffic to and from the affected cameras to detect any unauthorized access attempts.

Long-Term Solutions:

• Firmware Update: Contact FLIR for an updated firmware version that addresses this vulnerability.
• Credential Management: Ensure that any future firmware updates allow for the changing of default credentials.
• Regular Audits: Conduct regular security audits to identify and mitigate similar vulnerabilities in other devices.

5. Impact on Cybersecurity Landscape

The presence of hard-coded credentials in IoT devices like the FLIR AX8 Thermal Camera highlights a significant issue in the cybersecurity landscape. Such vulnerabilities can be easily exploited by attackers to gain unauthorized access to critical systems, leading to data breaches, system compromises, and potential physical security risks. This underscores the need for robust security practices in the design and deployment of IoT devices, including secure credential management and regular security updates.

6. Technical Details for Security Professionals

Exploit Details:

• Hard-coded Credentials: The vulnerability involves predefined username and password combinations that are hard-coded into the camera's firmware. These credentials cannot be changed through normal camera operations, making them persistent and easily exploitable.
• SSH Access: The SSH service on the camera uses hard-coded credentials, allowing attackers to gain shell access and execute commands.
• Web Panel Access: The web panel also uses hard-coded credentials, allowing attackers to log in and access camera settings and video feeds.

Detection and Response:

• Log Analysis: Monitor SSH and web panel login attempts for unusual activity.
• Intrusion Detection Systems (IDS): Deploy IDS to detect and alert on unauthorized access attempts.
• Incident Response: Have an incident response plan in place to quickly address any detected exploitation attempts.

References:

• Exploit-DB Entry
• FLIR Official Website
• Zero Science Advisory

By addressing this vulnerability promptly and implementing robust security measures, organizations can mitigate the risk of unauthorized access and ensure the integrity and security of their thermal camera systems.