Directory Traversal in GeoVision GV-LPC2011 and GV-LPC2211

Detection Guidance

This vulnerability involves an unauthenticated directory traversal in the get_fcont.cgi component of GeoVision GV-LPC2011 and GV-LPC2211 devices. Detection typically involves identifying attempts to access files outside the intended directory via crafted HTTP requests targeting get_fcont.cgi.

To detect exploitation attempts on your network or system, you can monitor web server logs or network traffic for suspicious requests containing directory traversal patterns such as "../" or encoded equivalents targeting get_fcont.cgi.

• Use command-line tools like grep to search web server logs for directory traversal patterns, for example:
• grep -i 'get_fcont.cgi' /var/log/httpd/access_log | grep -E '(\.\./|%2e%2e%2f)'
• Use network monitoring tools like tcpdump or Wireshark to capture HTTP requests and filter for suspicious URI patterns:
• tcpdump -A -s 0 'tcp port 80 and (((ip[2:2] - ((ip[0]&0xf)<<2)) - ((tcp[12]&0xf0)>>2)) != 0)' | grep 'get_fcont.cgi'

Note that these commands are generic suggestions based on the nature of the vulnerability and the affected CGI script. Specific detection tools or signatures may be available from GeoVision or security vendors.

Useful 0 Not Useful 0

Compliance Impact

The vulnerability allows unauthenticated remote attackers to read arbitrary files accessible to the affected process, resulting in information disclosure. Such unauthorized access to sensitive information could potentially lead to non-compliance with data protection regulations like GDPR and HIPAA, which mandate strict controls over personal and sensitive data.

GeoVision maintains a comprehensive cybersecurity policy and a structured vulnerability management process, including prompt disclosure and remediation efforts. Their commitment to high security standards and timely updates helps mitigate risks associated with vulnerabilities like this one, supporting compliance with recognized security standards.

Useful 0 Not Useful 0

Mitigation Strategies

To mitigate this vulnerability, it is important to apply any available security updates or patches provided by GeoVision as soon as possible.

GeoVision follows a structured vulnerability management process that includes prompt updates for critical vulnerabilities like this one, so monitoring their official security advisories and applying recommended firmware or software updates is essential.

Additionally, restricting access to the affected devices from untrusted networks and implementing network-level protections such as firewalls or intrusion detection systems can help reduce exposure.

Useful 0 Not Useful 0

Executive Summary

This vulnerability is an unauthenticated directory traversal issue in the get_fcont.cgi component of GeoVision GV-LPC2011 and GV-LPC2211 devices running version 1.12 and earlier.

It occurs because the software does not properly validate user-supplied file path input before accessing files.

An attacker can exploit this by sending a specially crafted request to the device, allowing them to read arbitrary files that the affected process has access to.

This results in unauthorized information disclosure.

Useful 0 Not Useful 0

Impact Analysis

This vulnerability can impact you by allowing a remote attacker to read arbitrary files on the affected device without any authentication.

Since the attacker can access sensitive files, this can lead to information disclosure, potentially exposing confidential or sensitive data.

The CVSS score of 7.5 indicates a high severity impact on confidentiality, although integrity and availability are not affected.

Useful 0 Not Useful 0