Signature Detail
Short Name |
NETBIOS:NBNS:INVALID:HDR-OPCODE |
|---|---|
Severity |
High |
Recommended |
No |
Category |
NETBIOS |
Release Date |
2004/01/29 |
Update Number |
1213 |
Supported Platforms |
di-5.3+, idp-4.0+, isg-3.0+, j-series-9.5+, mx-9.4+, srx-9.2+, srx-branch-9.4+, vsrx-12.1+ |
NETBIOS NS: Invalid Header OPCODE
This protocol anomaly detects a header with an OPCODE field value that is not 0, 5, 6, 7, or 8.
Extended Description
The value of the OPCODE field in a NetBIOS name service packets should be in the range of 0,5,6,7 or 8. The value outside the range would be treated as a protocol anomaly.
References