CVE-2019-5914 : Exploit Details and Defense Strategies

Vulnerability in V20 PRO L-01J software versions L01J20c and L01J20d allows attackers to crash the device through a NULL pointer exception.

Understanding CVE-2019-5914

The vulnerability in V20 PRO L-01J software versions L01J20c and L01J20d can be exploited by attackers to crash the device.

What is CVE-2019-5914?

The software versions L01J20c and L01J20d of V20 PRO L-01J have a vulnerability in the form of a NULL pointer exception. Attackers can exploit this flaw to crash the device if both the attacker's access point and the device are on the same network range.

The Impact of CVE-2019-5914

Attackers can deliberately crash the V20 PRO L-01J device by exploiting the NULL pointer exception vulnerability.

Technical Details of CVE-2019-5914

The technical details of the CVE-2019-5914 vulnerability are as follows:

Vulnerability Description

The vulnerability lies in the software versions L01J20c and L01J20d of V20 PRO L-01J, allowing attackers to cause a device crash through a NULL pointer exception.

Affected Systems and Versions

Product: V20 PRO L-01J
Vendor: NTT DOCOMO, INC.
Versions: software version L01J20c and L01J20d

Exploitation Mechanism

Attackers need to be on the same network range as the device and use a specially engineered access point to exploit the vulnerability.

Mitigation and Prevention

Steps to mitigate and prevent the CVE-2019-5914 vulnerability:

Immediate Steps to Take

Update the device to a patched version provided by NTT DOCOMO, INC.
Avoid connecting to untrusted or suspicious access points.

Long-Term Security Practices

Regularly update the device's software and firmware to the latest versions.
Implement network segmentation to isolate critical devices from potential attackers.

Patching and Updates

NTT DOCOMO, INC. has released patched versions to address the vulnerability in V20 PRO L-01J software versions L01J20c and L01J20d.