Path traversal in several Huawei Smartphones

1) Path traversal

EUVDB-ID: #VU23412

Risk: Low

CVSSv4.0: 4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2019-5251

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. A local attacker can trick the victim to install, backup up and restore a malicious application and read arbitrary files on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Huawei Honor V10: All versions

P30: All versions

Huawei Enjoy 7S: All versions

Huawei Mate 20: All versions

Huawei Honor 9 Lite: All versions

Huawei Honor 9i: All versions

Huawei M6: All versions

P30 Pro: All versions

Huawei Honor 20s: All versions

CPE2.3

• cpe:2.3:a:huawei:huawei_honor_v10:*:*:*:*:*:*:*:*
• cpe:2.3:a:huawei:p30:*:*:*:*:*:*:*:*
• cpe:2.3:a:huawei:huawei_enjoy_7s:*:*:*:*:*:*:*:*
• cpe:2.3:a:huawei:huawei_mate_20:*:*:*:*:*:*:*:*
• cpe:2.3:a:huawei:huawei_honor_9_lite:*:*:*:*:*:*:*:*
• cpe:2.3:a:huawei:huawei_honor_9i:*:*:*:*:*:*:*:*
• cpe:2.3:a:huawei:huawei_m6:*:*:*:*:*:*:*:*
• cpe:2.3:a:huawei:p30_pro:*:*:*:*:*:*:*:*
• cpe:2.3:a:huawei:huawei_honor_20s:*:*:*:*:*:*:*:*

External links

https://www.huawei.com/en/psirt/security-advisories/huawei-sa-20191204-03-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.