CVE-2019-9863 : Security Advisory and Response

ABUS Secvest wireless alarm system and remote controls are vulnerable to unauthorized remote control due to an insecure rolling code algorithm.

Understanding CVE-2019-9863

This CVE involves a vulnerability in the ABUS Secvest wireless alarm system and its remote controls, allowing attackers to predict rolling codes and manipulate the alarm system.

What is CVE-2019-9863?

The ABUS Secvest wireless alarm system FUAA50000 3.01.01 and its remote controls FUBE50014 and FUBE50015 are susceptible to unauthorized remote control due to the utilization of an insecure rolling code algorithm. This vulnerability allows an attacker to accurately predict future rolling codes, granting them the ability to manipulate the alarm system without authorization.

The Impact of CVE-2019-9863

The vulnerability in the ABUS Secvest wireless alarm system and remote controls can lead to unauthorized access and control of the alarm system, compromising the security of the premises it is meant to protect.

Technical Details of CVE-2019-9863

The technical aspects of the vulnerability in the ABUS Secvest wireless alarm system and remote controls.

Vulnerability Description

Due to the use of an insecure algorithm for rolling codes in the ABUS Secvest wireless alarm system FUAA50000 3.01.01 and its remote controls FUBE50014 and FUBE50015, an attacker is able to predict valid future rolling codes, and can thus remotely control the alarm system in an unauthorized way.

Affected Systems and Versions

Product: ABUS Secvest wireless alarm system FUAA50000 3.01.01
Remote Controls: FUBE50014, FUBE50015
Versions: All versions are affected

Exploitation Mechanism

The vulnerability allows attackers to predict rolling codes, enabling them to manipulate the alarm system remotely without proper authorization.

Mitigation and Prevention

Steps to mitigate and prevent the exploitation of CVE-2019-9863.

Immediate Steps to Take

Update the firmware of the ABUS Secvest wireless alarm system and remote controls to the latest secure version.
Change the default settings and passwords to strong, unique credentials.
Monitor and restrict network access to the alarm system.

Long-Term Security Practices

Regularly update and patch the firmware of the alarm system and associated devices.
Conduct security audits and assessments to identify and address vulnerabilities.

Patching and Updates

ABUS or the relevant vendor should release patches addressing the insecure rolling code algorithm to prevent unauthorized remote control.