Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Wut | At-Modem-Emulator Firmware | < 1.48 |
| Wut | At-Modem-Emulator | - |
| Wut | Com-Server \+\+ Firmware | < 1.48 |
| Wut | Com-Server \+\+ | - |
| Wut | Com-Server 20Ma Firmware | < 1.48 |
| Wut | Com-Server 20Ma | - |
| Wut | Com-Server Highspeed 100Basefx Firmware | < 1.76 |
| Wut | Com-Server Highspeed 100Basefx | - |
| Wut | Com-Server Highspeed 100Baselx Firmware | < 1.76 |
| Wut | Com-Server Highspeed 100Baselx | - |
| Wut | Com-Server Highspeed 19\" 1Port Firmware | < 1.76 |
| Wut | Com-Server Highspeed 19\" 1Port | - |
| Wut | Com-Server Highspeed 19\" 4Port Firmware | < 1.76 |
| Wut | Com-Server Highspeed 19\" 4Port | - |
| Wut | Com-Server Highspeed Compact Firmware | < 1.76 |
| Wut | Com-Server Highspeed Compact | - |
| Wut | Com-Server Highspeed Industry Firmware | < 1.76 |
| Wut | Com-Server Highspeed Industry | - |
| Wut | Com-Server Highspeed Isolated Firmware | < 1.76 |
| Wut | Com-Server Highspeed Isolated | - |
Related Weaknesses (CWE)
References
- https://cert.vde.com/de/advisories/VDE-2022-043Vendor Advisory
- https://cert.vde.com/de/advisories/VDE-2022-043Vendor Advisory
FAQ
What is CVE-2022-42787?
CVE-2022-42787 is a vulnerability with a CVSS score of 8.8 (HIGH). 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 ge...
How severe is CVE-2022-42787?
CVE-2022-42787 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-42787?
Check the references section above for vendor advisories and patch information. Affected products include: Wut At-Modem-Emulator Firmware, Wut At-Modem-Emulator, Wut Com-Server \+\+ Firmware, Wut Com-Server \+\+, Wut Com-Server 20Ma Firmware.