A buffer overflow was found in the MikroTik RouterOS SMB service when processing NetBIOS session request messages. Remote attackers with access to the service can exploit this vulnerability and gain code execution on the system. The overflow occurs before authentication takes place, so it is possible for an unauthenticated remote attacker to exploit it. All architectures and all devices running RouterOS before versions 6.41.3/6.42rc27 are vulnerable.
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
| Link | Tags |
|---|---|
| http://www.securityfocus.com/bid/103427 | third party advisory vdb entry |
| http://seclists.org/fulldisclosure/2018/Mar/38 | exploit third party advisory mailing list vdb entry |
| https://www.exploit-db.com/exploits/44290/ | exploit third party advisory vdb entry |
| https://www.coresecurity.com/advisories/mikrotik-routeros-smb-buffer-overflow | third party advisory exploit |