CVE-2020-35510 : What You Need to Know

A flaw in jboss-remoting before version 5.0.20.SP1-redhat-00001 could allow a malicious attacker to disrupt the EJB server, leading to a denial of service.

Understanding CVE-2020-35510

This CVE involves a vulnerability in jboss-remoting that could be exploited to impact system availability.

What is CVE-2020-35510?

The vulnerability in jboss-remoting before version 5.0.20.SP1-redhat-00001 allows an attacker to disrupt the EJB server, potentially causing a denial of service.

The Impact of CVE-2020-35510

The highest threat posed by this vulnerability is to system availability, as an attacker could cause threads to hold up indefinitely in the EJB server.

Technical Details of CVE-2020-35510

This section provides more technical insights into the vulnerability.

Vulnerability Description

The flaw in jboss-remoting allows an attacker to disrupt the EJB server by manipulating the expected messages of a successful EJB client request, leading to a denial of service.

Affected Systems and Versions

Product: jboss-remoting
Vendor: n/a
Versions affected: jboss-remoting 5.0.20.SP1-redhat-00001

Exploitation Mechanism

Attacker writes a sequence of bytes corresponding to expected messages of a successful EJB client request, omitting ACK messages.
Tampering with jboss-remoting code by deleting lines that send ACK messages from EJB client code.

Mitigation and Prevention

Protecting systems from CVE-2020-35510 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply patches or updates provided by the vendor.
Monitor system logs for any unusual activities.

Long-Term Security Practices

Regularly update software and apply security patches.
Implement network segmentation to limit the impact of potential attacks.

Patching and Updates

Ensure that the affected systems are updated with the latest patches to mitigate the vulnerability.