Path traversal in several ZTE Home Gateway Products



Published: 2022-05-16
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2022-23135
CWE-ID CWE-22
Exploitation vector Local network
Public exploit N/A
Vulnerable software
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ZXHN F477
Hardware solutions / Routers for home users

ZXHN F677
Hardware solutions / Routers for home users

Vendor ZTE

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Path traversal

EUVDB-ID: #VU63188

Risk: Medium

CVSSv3.1: 5.3 [CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-23135

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

Exploit availability: No

Description

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

The vulnerability exists due to input validation error when processing directory traversal sequences. A remote user can send a specially crafted HTTP request and modify the FTP access path, obtain sensitive information, and perform a denial of service attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

ZXHN F477: 9.0.0P1N28

ZXHN F677: 9.0.0P1N28


CPE2.3 External links

http://support.zte.com.cn/support/news/LoopholeInfoDetail.aspx?newsId=1023444

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the local network (LAN).

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected device in order to 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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