CVE-2019-3955 : What You Need to Know

Dameware Remote Mini Control version 12.1.0.34 and earlier versions have a vulnerability that allows remote heap overflow without authentication.

Understanding CVE-2019-3955

What is CVE-2019-3955?

The vulnerability in Dameware Remote Mini Control arises from improper validation of RsaPubKeyLen during key negotiation, enabling a remote attacker to trigger a heap buffer overflow.

The Impact of CVE-2019-3955

The vulnerability permits unauthenticated remote attackers to exploit the heap overflow, potentially leading to denial of service.

Technical Details of CVE-2019-3955

Vulnerability Description

Dameware Remote Mini Control versions prior to 12.1.0.34 are susceptible to a remote heap overflow due to inadequate validation of RsaPubKeyLen during key negotiation.

Affected Systems and Versions

Solarwinds Dameware Remote Mini Controller: All versions before 12.1.0.34

Exploitation Mechanism

Remote attackers can exploit the vulnerability by specifying a large RsaPubKeyLen, causing a heap buffer overflow and potential denial of service.

Mitigation and Prevention

Immediate Steps to Take

Update Dameware Remote Mini Control to version 12.1.0.34 or later to mitigate the vulnerability.
Implement network security measures to restrict access to vulnerable systems.

Long-Term Security Practices

Regularly monitor and apply security patches to all software and systems.
Conduct security assessments and penetration testing to identify and address vulnerabilities.

Patching and Updates

Stay informed about security advisories and updates from Solarwinds to promptly address any new vulnerabilities.