CVE-2020-15490 : What You Need to Know

An issue was discovered on Wavlink WL-WN530HG4 M30HG4.V5030.191116 devices. Multiple buffer overflow vulnerabilities exist in CGI scripts, leading to remote code execution with root privileges. (The set of affected scripts is similar to CVE-2020-12266.)

Understanding CVE-2020-15490

This CVE involves buffer overflow vulnerabilities in Wavlink WL-WN530HG4 M30HG4.V5030.191116 devices, allowing remote code execution with root privileges.

What is CVE-2020-15490?

CVE-2020-15490 is a security issue found in Wavlink WL-WN530HG4 M30HG4.V5030.191116 devices, enabling attackers to execute malicious code remotely with elevated privileges.

The Impact of CVE-2020-15490

The vulnerability poses a severe risk as it allows threat actors to exploit buffer overflows in CGI scripts, potentially leading to unauthorized remote code execution with root access.

Technical Details of CVE-2020-15490

This section provides more in-depth technical insights into the CVE.

Vulnerability Description

The vulnerability stems from multiple buffer overflow flaws in CGI scripts on the affected devices, enabling attackers to execute arbitrary code remotely.

Affected Systems and Versions

Product: Wavlink WL-WN530HG4 M30HG4.V5030.191116
Vendor: Wavlink
Version: n/a

Exploitation Mechanism

Attackers can exploit the buffer overflow vulnerabilities in CGI scripts to inject and execute malicious code remotely, gaining root privileges on the target device.

Mitigation and Prevention

Protecting systems from CVE-2020-15490 requires immediate action and long-term security measures.

Immediate Steps to Take

Disable affected services or scripts if possible to mitigate the risk of exploitation.
Implement network segmentation to limit the impact of potential attacks.
Monitor network traffic for any suspicious activities that could indicate an ongoing exploit attempt.

Long-Term Security Practices

Regularly update and patch all software and firmware to address known vulnerabilities.
Conduct security assessments and penetration testing to identify and remediate weaknesses in the system.

Patching and Updates

Stay informed about security advisories from the vendor and apply patches promptly to fix the vulnerability.