Vulnerability identifier: #VU22777

Vulnerability risk: Low

CVSSv3.1: 5 [CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-5211

CWE-ID: CWE-284

Exploitation vector: Local network

Exploit availability: No

Vulnerable software:
Huawei P20
Client/Desktop applications / Multimedia software

Vendor: Huawei

Description

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

The vulnerability exists due to improper file management in the Share function. An attacker on adjacent network can trick the victim to perform certain operations on the mobile phone during file transfer and delete some files on the victim's mobile phone.

Mitigation

Install updates from vendor's website.

Product Name	Affected Version	Resolved Product and Version
P20	Versions earlier than Emily-L29C 9.1.0.311(C10E2R1P13T8)	Emily-L29C 9.1.0.311(C10E2R1P13T8)
	Versions earlier than Emily-L29C 9.1.0.311(C461E2R1P11T8)	Emily-L29C 9.1.0.311(C461E2R1P11T8)
	Versions earlier than Emily-L29C 9.1.0.311(C605E2R1P12T8)	Emily-L29C 9.1.0.311(C605E2R1P12T8)
	Versions earlier than Emily-L29C 9.1.0.311(C432E7R1P11T8)	Emily-L29C 9.1.0.311(C432E7R1P11T8)

Vulnerable software versions

Huawei P20: All versions

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External links
http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20191113-02-share-en

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

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