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Security Intelligence Operations
| DNS Flood Attack |
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| IPS SIGNATURE | Powered by  |
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| Signature ID: | 4004/0 |
| Original Release: | S343 |
| Release: | S347 (download) |
| Original Release Date: | July 09, 2008 |
| Latest Release Date: | July 28, 2008 |
| Default Enabled: | True |
| Default Retired: | False |
| CVE: | CVE-2008-1447 |
| BugTraq ID: | 30131 |
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| Alarm Severity: | Medium |  |
| Fidelity: | 85 | |
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| Description |
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| This signature detects a DNS flood that could lead to potential DNS cache poisoning, reflection, or amplification attacks. |
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| Recommended Filter |
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| Filter out alerts from servers that legitimately produce a large number of DNS queries. |
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| Benign Triggers |
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| Mail servers may generate a sufficient number of DNS queries to obtain MX records for sending emails. It is recommended to filter these alerts. |
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