#VU83321 Untrusted search path in SecuExtender SSL VPN client for macOS

Vulnerability identifier: #VU83321

Vulnerability risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: N/A

CWE-ID: CWE-426

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
SecuExtender SSL VPN client for macOS
Client/Desktop applications / Antivirus software/Personal firewalls

Vendor: ZyXEL Communications Corp.

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to usage of an untrusted search path during helper update. A local user can place a malicious binary into a specific location on the system and execute arbitrary code with escalated privileges.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

SecuExtender SSL VPN client for macOS: 1.0.0 - 1.1.7

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External links
https://download.zyxel.com/SecuExtender_VPN_Client/software/SecuExtender%20VPN%20Client_SSL_VPN_Client_1.2.6_2.pdf#1.2.3

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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.