Improper access control in Gurunavi Apps

1) Improper access control

EUVDB-ID: #VU52213

Risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-20693

CWE-ID: CWE-284 - Improper Access Control

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions. A remote attacker can trick a victim to visit a mlaicious website and perform a phishing attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Gurunavi App for Android: 10.0.10

Gurunavi App for iOS: 11.1.2

External links

http://jvn.jp/en/jp/JVN54025691/index.html

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to perform certain actions on the device.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.