Multiple vulnerabilities in Zyxel AX7501-B0



Risk Low
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2022-45439
CVE-2022-45440
CWE-ID CWE-312
CWE-59
Exploitation vector Local
Public exploit N/A
Vulnerable software
 AX7501-B0
Hardware solutions / Firmware

Vendor ZyXEL Communications Corp.

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Cleartext storage of sensitive information

EUVDB-ID: #VU71206

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 - Cleartext Storage of Sensitive Information

Exploit availability: No

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

CPE2.3 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


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) Link following

EUVDB-ID: #VU71208

Risk: Low

CVSSv4.0: 5.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-45440

CWE-ID: CWE-59 - Improper Link Resolution Before File Access ('Link Following')

Exploit availability: No

Description

The vulnerability allows a local user to compromise the target system.

The vulnerability exists due to the FTP server processes symbolic links on external storage media. A local administrator can create a symbolic link on external storage media and access the root file system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

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

CPE2.3 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


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.



###SIDEBAR###