CVE-2022-28711 Explained : Impact and Mitigation

A memory corruption vulnerability has been identified in the cgi.c unescape functionality of ArduPilot APWeb's master branch versions 50b6b7ac to 46177cb9. This vulnerability could be exploited by an attacker through a specially-crafted HTTP request, resulting in memory corruption.

Understanding CVE-2022-28711

This section delves into the details of the identified vulnerability in ArduPilot APWeb.

What is CVE-2022-28711?

The CVE-2022-28711 vulnerability is classified under CWE-20, denoting improper input validation. It resides in the cgi.c unescape functionality of ArduPilot APWeb's master branch versions 50b6b7ac to 46177cb9.

The Impact of CVE-2022-28711

With a CVSS base score of 5.3 (Medium severity), this vulnerability allows an attacker to trigger memory corruption through a malicious network request. It has a low integrity impact and requires no special privileges for exploitation.

Technical Details of CVE-2022-28711

This section provides more insight into the technical aspects of the CVE-2022-28711 vulnerability.

Vulnerability Description

The vulnerability arises due to improper input validation in the cgi.c unescape functionality, allowing attackers to corrupt memory in the affected versions of ArduPilot APWeb.

Affected Systems and Versions

The vulnerability affects ArduPilot APWeb's master branch versions ranging from commit 50b6b7ac to commit 46177cb9.

Exploitation Mechanism

By sending a specially-crafted HTTP request, an attacker can exploit this vulnerability to trigger memory corruption in the target system.

Mitigation and Prevention

To safeguard systems from potential exploitation, immediate and long-term security measures should be implemented.

Immediate Steps to Take

System administrators are advised to monitor updates from the vendor, apply patches promptly, and restrict network access to vulnerable systems.

Long-Term Security Practices

Incorporating input validation mechanisms, conducting regular security assessments, and employing secure coding practices can help prevent similar vulnerabilities in the future.

Patching and Updates

Regularly updating the software to the latest secure version provided by ArduPilot is crucial in mitigating the risk posed by CVE-2022-28711.