CVE-2021-3160 : What You Need to Know

A remote code execution vulnerability in the login page of ASSUWEB 359.3 build 1 subcomponent of ACA ASSUREX RENTES product allows an attacker to inject unsecure serialized Java objects, leading to unauthenticated remote code execution on the server.

Understanding CVE-2021-3160

This CVE involves the deserialization of untrusted data in a specific subcomponent of the ACA ASSUREX RENTES product, enabling attackers to execute malicious code remotely.

What is CVE-2021-3160?

The vulnerability in the login page of the ASSUWEB subcomponent permits remote attackers to inject specially crafted data, resulting in unauthorized remote code execution on the server.

The Impact of CVE-2021-3160

The exploitation of this vulnerability can lead to severe consequences, allowing attackers to execute arbitrary code on the server without authentication.

Technical Details of CVE-2021-3160

This section provides a deeper insight into the vulnerability, the affected systems, and the exploitation method.

Vulnerability Description

The vulnerability arises from the improper deserialization of untrusted data in the login page, offering attackers the ability to insert malicious Java objects.

Affected Systems and Versions

The vulnerability affects the ASSUWEB 359.3 build 1 subcomponent of the ACA ASSUREX RENTES product.

Exploitation Mechanism

Attackers can exploit this issue by sending a specially crafted HTTP request to the login page, facilitating the injection of unsecure serialized Java objects for remote code execution.

Mitigation and Prevention

To safeguard systems from this critical vulnerability, immediate actions and long-term security measures are recommended.

Immediate Steps to Take

Apply security patches provided by the vendor promptly.
Implement network controls to restrict access to vulnerable components.

Long-Term Security Practices

Regularly update software and systems to prevent known vulnerabilities.
Conduct security assessments and audits to identify and mitigate risks effectively.

Patching and Updates

Stay informed about security updates for the ACA ASSUREX RENTES product and ensure timely implementation to prevent exploitation.