Description
Multiple W&T products of the Comserver Series use a small number space for allocating sessions ids. After login of an user an unathenticated remote attacker can brute force the users session id and get access to his account on the the device. As the user needs to log in for the attack to be successful a user interaction is required.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Wiesemann & Theis | Com-Server LC | 1.0 – < 1.48 | 1.48 |
| Wiesemann & Theis | Com-Server PoE 3 x Isolated | 1.0 – < 1.48 | 1.48 |
| Wiesemann & Theis | Com-Server 20mA | 1.0 – < 1.48 | 1.48 |
| Wiesemann & Theis | Com-Server ++ | 1.0 – < 1.48 | 1.48 |
| Wiesemann & Theis | AT-Modem-Emulator | 1.0 – < 1.48 | 1.48 |
| Wiesemann & Theis | Com-Server UL | 1.0 – < 1.48 | 1.48 |
| Wiesemann & Theis | Com-Server Highspeed 100BaseFX | 1.0 – < 1.76 | 1.76 |
| Wiesemann & Theis | Com-Server Highspeed 100BaseLX | 1.0 – < 1.76 | 1.76 |
| Wiesemann & Theis | Com-Server Highspeed Office 1 Port | 1.0 – < 1.76 | 1.76 |
| Wiesemann & Theis | Com-Server Highspeed Office 4 Port | 1.0 – < 1.76 | 1.76 |
| Wiesemann & Theis | Com-Server Highspeed Industry | 1.0 – < 1.76 | 1.76 |
| Wiesemann & Theis | Com-Server Highspeed OEM | 1.0 – < 1.76 | 1.76 |
| Wiesemann & Theis | Com-Server Highspeed Compact | 1.0 – < 1.76 | 1.76 |
| Wiesemann & Theis | Com-Server Highspeed Isolated | 1.0 – < 1.76 | 1.76 |
| Wiesemann & Theis | Com-Server Highspeed 19" 1Port | 1.0 – < 1.76 | 1.76 |
| Wiesemann & Theis | Com-Server Highspeed 19" 4Port | 1.0 – < 1.76 | 1.76 |
| Wiesemann & Theis | Com-Server Highspeed PoE | 1.0 – < 1.76 | 1.76 |
Advisories 1
- VDE-2022-043 Wiesemann & Theis: Multiple Vulnerabilities in the Com-Server Family CERT@VDE · Nov 7, 2022