Local Privilege Escalation in Securepoint SSL VPN Client 2.0.30
Release Date: 29-Jun-2021
Author: Florian Bogner @ https://bee-itsecurity.at
Affected product: Securepoint SSL VPN Client
Fixed in: version 2.0.32
Tested on: Windows 10 x64 fully patched
Vulnerability Status: Fixed with new release
Vulnerability Description (copied from the CVE Details)
Securepoint SSL VPN Client v2 before 2.0.32 on Windows has unsafe configuration handling that enables local privilege escalation to NT AUTHORITY\SYSTEM. A non-privileged local user can modify the OpenVPN configuration stored under "%APPDATA%\Securepoint SSL VPN" and add a external script file that is executed as privileged user.
A full vulnerability description is available here: https://bogner.sh/2021/06/local-privilege-escalation-in-securepoint-ssl-vpn-client-2-0-30/
End-users should update to the latest available version.
14.04.2021: The vulnerability was discovered and reported to email@example.com
15.04.2021: The report was triaged
26.04.2021: Securepoint SSL VPN Client Version 2.0.32 was released, which contains an initial fix for the vulnerability
23.06.2021: Securepoint SSL VPN Client Version 2.0.34 was released, which contains additional security measures.
28.06.2021: CVE-2021-35523 was assigned: https://nvd.nist.gov/vuln/detail/CVE-2021-35523
29.06.2021: Responsible disclosure in cooperation with Securepoint: https://github.com/Securepoint/openvpn-client/security/advisories/GHSA-v8p8-4w8f-qh34
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