Path traversal in Some Huawei Products

1) Path traversal

EUVDB-ID: #VU54505

Risk: Low

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

CVE-ID: CVE-2021-22440

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Exploit availability: No

Description

The vulnerability allows a local attacker to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences. An attacker with physical access can connect to the smartphone through a USB cable and access a location that is outside of the restricted directory by a crafted filename

Mitigation

Install update from vendor's website.

Vulnerable software versions

Huawei Mate 20: 9.0.0.195(C01E195R2P1) - 9.1.0.139(C00E133R3P1)

Huawei Mate 20 Pro: 9.0.0.187(C432E10R1P16) - 9.0.0.278(C185E10R2P1)

Hima-L29C: 9.0.0.105(C10E9R1P16) - 9.0.0.105(C636E9R1P16)

Laya-AL00EP: 9.1.0.139(C786E133R3P1)

OxfordS-AN00A: 10.1.0.223(C00E210R5P1)

Huawei Tony-AL00B: 9.1.0.257(C00E222R2P1)

External links

http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20210630-01-pathtraversal-en

Q & A

Can this vulnerability be exploited remotely?

No. The attacker should have physical access to the system in order to successfully exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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