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| GEN:SID | 1:2336 |
| Message | TFTP NULL command attempt |
| Summary | This event is generated when an attempt is made to exploit a known vulnerability in a Verilink NetEngine Broadband Router. |
| Impact | Denial of Service (DoS) |
| Detailed Information | TFTP is used to transfer files between hosts and devices. This event is indicative of spurious activity in TFTP traffic between hosts. It is possible for an attacker to send a NULL opcode to a Verilink NetEngine Broadband Router, this may cause the router to become unresponsive. |
| Affected Systems | Verilink NetEngine 6100-4 |
| Attack Scenarios | An attacker may use a publicly available exploit script to cause the DoS. |
| Ease of Attack | Simple. Exploit code is available. |
| Corrective Action | Apply the appropriate vendor supplied patches. Upgrade to the latest non-affected version of the software. |
| Additional References | |
| Rule References | bugtraq: 7575 |
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DID:164967
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