Improper Multi-Factor Authentication Validation Allows Authentication Bypass

Incorrect authentication vulnerability in the TSplus Remote Access multi-factor authentication (MFA) mechanism. A remote attacker authenticated with valid first-factor credentials could bypass the second-factor verification because the authentication flow does not correctly apply the MFA validation result, allowing the attacker to complete the login without a valid second-factor token and gain access to protected applications and resources.

Improper Access Control Allows Unauthorized Access to Protected Internal Web Resources in TSplus Remote Access

A vulnerability involving improper access control in the TSplus Remote Access web server that allows an unauthenticated remote attacker to access internal resources protected by manipulated paths through the /socket.io/JWN/ endpoint, bypassing the access restrictions intended for certain internal resources.

Insecure Permissions on Shared Startup Scripts Allow Cross-User Code Execution and Potential Privilege Escalation

Vulnerability due to incorrect permissions in TSplus Remote Access shared login scripts. The autostart1.tscr files, located in the shared themes directory, allow users without sufficient privileges to write to them. A local attacker with a valid session on the terminal or remote desktop server could modify these files to execute arbitrary commands within another user’s security context when that user logs in using the same theme or operating mode. Depending on the affected user’s privileges, exploitation could allow lateral movement between users or privilege escalation.

Retrievable password hash protecting TSplus admin console

Access to TSplus Remote Access Admin Tool is restricted to administrators (unless "Disable UAC" option is enabled) and requires a PIN code. In versions below v18.40.6.17 the PIN's hash is stored in a system registry accessible to regular users, making it possible to perform a brute-force attack using rainbow tables, since the hash is not salted. LTS (Long-Term Support) versions also received patches in v17.2025.6.27 and v16.2025.6.27 releases.

An issue was discovered in TSplus Remote Access through 16.0.2.14. There are Full Control permissions for Everyone on some directories under %PROGRAMFILES(X86)%\TSplus\UserDesktop\themes.

An issue was discovered in TSplus Remote Access through 16.0.2.14. Credentials are stored as cleartext within the HTML source code of the login page.

An issue was discovered in TSplus Remote Access through 16.0.2.14. There are Full Control permissions for Everyone on some directories under %PROGRAMFILES(X86)%\TSplus\Clients\www.

TSplus Remote Work 16.0.0.0 has weak permissions for .exe, .js, and .html files under the %PROGRAMFILES(X86)%\TSplus-RemoteWork\Clients\www folder. This may enable privilege escalation if a different local user modifies a file. NOTE: CVE-2023-31067 and CVE-2023-31068 are only about the TSplus Remote Access product, not the TSplus Remote Work product.

TSplus Remote Work 16.0.0.0 places a cleartext password on the "var pass" line of the HTML source code for the secure single sign-on web portal. NOTE: CVE-2023-31069 is only about the TSplus Remote Access product, not the TSplus Remote Work product.