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The system must limit how many times unacknowledged TCP data is retransmitted.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-4438 | WN08-SO-000048 | SV-48127r1_rule | ECSC-1 | Low |
| Description |
|---|
| In a SYN flood attack, the attacker sends a continuous stream of SYN packets to a server, and the server leaves the half-open connections open until it is overwhelmed and is no longer able to respond to legitimate requests. |
| STIG | Date |
|---|---|
| Windows 8 / 8.1 Security Technical Implementation Guide | 2015-06-24 |
Details
| Check Text ( None ) |
|---|
| None |
| Fix Text (F-41264r1_fix) |
|---|
| Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "MSS: (TcpMaxDataRetransmissions) How many times unacknowledged data is retransmitted (3 recommended, 5 is the default)" to "3" or less. |