Multiple vulnerabilities in Huawei Smartphones



Published: 2020-07-16 | Updated: 2020-08-27
Risk Low
Patch available YES
Number of vulnerabilities 3
CVE-ID CVE-2020-9252
CVE-2020-9251
CVE-2020-9082
CWE-ID CWE-22
CWE-285
CWE-200
Exploitation vector Local
Public exploit N/A
Vulnerable software
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Huawei Mate 20
Client/Desktop applications / Multimedia software

Huawei Mate 20 X
Client/Desktop applications / Multimedia software

Huawei Mate 20 RS
Client/Desktop applications / Multimedia software

Huawei Honor Magic 2
Client/Desktop applications / Multimedia software

Vendor Huawei

Security Bulletin

This security bulletin contains information about 3 vulnerabilities.

Updated 22.07.2020
Added vulnerability #2
Updated 27.08.2020
Added vulnerability #3

1) Path traversal

EUVDB-ID: #VU30114

Risk: Low

CVSSv3.1: 2 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-9252

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

Exploit availability: No

Description

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

The vulnerability exists due to input validation error when processing directory traversal sequences. A local administrator can send a specially crafted HTTP request and write files to a crafted path.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Huawei Mate 20: before 10.1.0.160

Huawei Mate 20 X : before 10.1.0.135

Huawei Mate 20 RS: before 10.1.0.160

Huawei Honor Magic 2: before 10.1.0.160

External links

http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20200715-07-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.

2) Improper Authorization

EUVDB-ID: #VU31758

Risk: Low

CVSSv3.1: 2.1 [CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-9251

CWE-ID: CWE-285 - Improper Authorization

Exploit availability: No

Description

The vulnerability allows a local attacker to bypass authorization checks.

The vulnerability exists due to the affected software does not properly restrict certain operation in certain scenario. An attacker with physical access to the device can do certain configuration before the user turns on student mode function and bypass the limit of student mode function.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Huawei Mate 20: before 10.1.0.160

External links

http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20200722-02-smartphone-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.

3) Information disclosure

EUVDB-ID: #VU46091

Risk: Low

CVSSv3.1: 4 [CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-9082

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows a local attacker to gain access to potentially sensitive information.

The vulnerability exists due to the system has a logic judging error under certain scenario. An attacker with physical access can gain certain information from certain apps locked by Applock

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Huawei Mate 20: before 10.1.0.160

External links

http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20200826-16-smartphone-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.



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