Remote code execution in Several Huawei Smartphones

1) Out-of-bounds write

EUVDB-ID: #VU25357

Risk: High

CVSSv4.0: 8.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Amber]

CVE-ID: CVE-2020-0022

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists within the System functionality of Android due to a boundary error when processing untrusted input in "reassemble_and_dispatch" of "packet_fragmenter.cc". A remote attacker can trigger out-of-bounds write and execute arbitrary code over Bluetooth on the target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Huawei P30 Pro: All versions

Huawei P30: All versions

Huawei nova 3e: All versions

Huawei Mate 20 Pro: All versions

Huawei P20 Pro: All versions

Huawei P20: All versions

Huawei Mate 20 X: All versions

Huawei Mate 20: All versions

CPE2.3

• cpe:2.3:a:huawei:huawei_p30_pro:*:*:*:*:*:*:*:*
• cpe:2.3:a:huawei:huawei_p30:*:*:*:*:*:*:*:*
• cpe:2.3:a:huawei:huawei_nova_3e:*:*:*:*:*:*:*:*
• cpe:2.3:a:huawei:huawei_mate_20_pro:*:*:*:*:*:*:*:*
• cpe:2.3:a:huawei:huawei_p20_pro:*:*:*:*:*:*:*:*
• cpe:2.3:a:huawei:huawei_p20:*:*:*:*:*:*:*:*
• cpe:2.3:a:huawei:huawei_mate_20_x:*:*:*:*:*:*:*:*
• cpe:2.3:a:huawei:huawei_mate_20:*:*:*:*:*:*:*:*

External links

https://www.huawei.com/en/psirt/security-advisories/huawei-sa-20200513-03-smartphone-en

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.