CVE-2022-43630 : What You Need to Know

A critical vulnerability has been identified in D-Link DIR-1935 1.03 routers that could allow attackers to execute arbitrary code without requiring authentication.

Understanding CVE-2022-43630

This CVE discloses a flaw in the handling of http requests to the web management portal of D-Link DIR-1935 1.03 routers.

What is CVE-2022-43630?

The vulnerability in D-Link DIR-1935 1.03 routers allows network-adjacent attackers to execute arbitrary code without needing authentication. The flaw lies in the inaccurate validation of user-supplied data length in the SOAPAction header.

The Impact of CVE-2022-43630

An attacker exploiting this vulnerability can execute code within the root context of the affected system, potentially leading to severe consequences due to the high confidentiality, integrity, and availability impact.

Technical Details of CVE-2022-43630

This section provides more insights into the vulnerability.

Vulnerability Description

The specific flaw in the handling of http requests does not properly validate the length of user-supplied data before copying it to a fixed-length stack-based buffer, enabling attackers to execute arbitrary code.

Affected Systems and Versions

Vendor: D-Link Product: DIR-1935 Affected Version: 1.03

Exploitation Mechanism

Attack Vector: ADJACENT_NETWORK Attack Complexity: LOW Privileges Required: NONE User Interaction: NONE Scope: UNCHANGED Confidentiality Impact: HIGH Integrity Impact: HIGH Availability Impact: HIGH Base Score: 8.8 (High Severity)

Mitigation and Prevention

Discover the necessary steps to secure your systems.

Immediate Steps to Take

Update the affected D-Link DIR-1935 1.03 routers to a patched version.
Implement network security controls to restrict unauthorized access.

Long-Term Security Practices

Regularly monitor for security advisories and updates from D-Link.
Conduct security assessments and penetration testing to identify vulnerabilities.

Patching and Updates

Refer to the vendor's security advisory and apply patches promptly to address the CVE-2022-43630 vulnerability.