Event ID - 9

Port No9
Service NameUDP Ascend Reboot DoS
RFC Doc0
ProtocolTCP
DescriptionOn certain versions of the Ascend operating system, the router can be forced to cause an internal error, resulting in the router rebooting. This signature detects the malformed packet.
Reference LinkPort Number:9 Service Name:UDP Ascend Reboot DoS Port:UDP
AttackAccording to Symantec

Resolution:
Ascend has published a filter set that, when implemented, will filter all UDP port 9 traffic. This will resolve the unauthorized access to Ascend configuration utilities.

This vulnerability can be addressed by upgrading your router software. Paths to the upgrades are listed in the 'Credit' section of this advisory.

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