#VU71206 Cleartext storage of sensitive information in AX7501-B0 - CVE-2022-45439

Vulnerability identifier: #VU71206

Vulnerability risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-45439

CWE-ID: CWE-312

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
AX7501-B0
Hardware solutions / Firmware

Vendor: ZyXEL Communications Corp.

Description

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

The vulnerability exists due to a pair of spare WiFi credentials is stored in the configuration file in cleartext. A local user can use the credentials to access the WLAN service.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

AX7501-B0: before 5.17(ABPC.3)C0

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External links
https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-cleartext-storage-of-wifi-credentials-and-improper-symbolic-links-of-ftp-for-ax7501-b0-cpe

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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.