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CVE-2020-13128 : Security Advisory and Response

Discover the impact of CVE-2020-13128, a denial of service vulnerability in Manolo GWTUpload 1.0.3. Learn about affected systems, exploitation risks, and mitigation steps to secure your server.

An issue was discovered in Manolo GWTUpload 1.0.3 that can lead to denial of service by causing server threads to sleep.

Understanding CVE-2020-13128

What is CVE-2020-13128?

This CVE identifies a vulnerability in Manolo GWTUpload 1.0.3 where the server's UploadServlet.java allows a delay parameter that can make all server threads sleep, potentially resulting in a denial of service.

The Impact of CVE-2020-13128

Exploiting this vulnerability can lead to a denial of service by causing server threads to sleep indefinitely, disrupting normal server operations.

Technical Details of CVE-2020-13128

Vulnerability Description

The issue lies in the server's UploadServlet.java, which accepts a delay parameter that can be exploited to make all server threads sleep, impacting server availability.

Affected Systems and Versions

        Product: Manolo GWTUpload 1.0.3
        Vendor: N/A
        Version: N/A

Exploitation Mechanism

The vulnerability can be exploited by sending a specially crafted request with a delay parameter, causing server threads to sleep and potentially leading to a denial of service.

Mitigation and Prevention

Immediate Steps to Take

        Disable or restrict access to the affected servlet to mitigate the risk of exploitation.
        Monitor server performance for any signs of unusual delays or thread sleeping.

Long-Term Security Practices

        Regularly update and patch the software to address known vulnerabilities.
        Implement network and application firewalls to filter and monitor incoming traffic.
        Conduct regular security assessments and penetration testing to identify and address potential vulnerabilities.

Patching and Updates

        Check for patches or updates from the software vendor to fix the vulnerability and apply them promptly to secure the system.

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