Information disclosure in several Huawei smartphones

1) Input validation error

EUVDB-ID: #VU22804

Risk: Low

CVSSv4.0: 4.2 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2019-5230

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a local attacker to gain access to sensitive information on the target system.

The vulnerability exists due to the affected software does not perform a properly validation of certain input models. A local attacker can trick a victim to install a malicious application, then craft a malformed model to get and tamper certain output data information.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Huawei P20: before 9.1.0.321

Huawei P20 Pro: before 9.1.0.321

Huawei Mate RS: before 9.1.0.321

CPE2.3

• cpe:2.3:a:huawei:huawei_p20:*:*:*:*:*:*:*:*
• cpe:2.3:a:huawei:huawei_p20_pro:*:*:*:*:*:*:*:*
• cpe:2.3:a:huawei:huawei_mate_rs:*:*:*:*:*:*:*:*

External links

https://www.huawei.com/en/psirt/security-advisories/huawei-sa-20190925-03-smartphone-en

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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