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CCE
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CCE-34622-1

Platform: cpe:/o:microsoft:windows_8.1Date: (C)2015-10-14   (M)2023-07-04



MSS: (TcpMaxDataRetransmissions IPv6) How many times unacknowledged data is retransmitted (3 recommended, 5 is default) The registry value entry TCPMaxDataRetransmissions for IPv6 was added to the template file in the HKEY_LOCAL_MACHINESystemCurrentControlSetServicesTcpip6 Parameters registry key. The entry appears as MSS: (TcpMaxDataRetransmissions) IPv6 How many times unacknowledged data is retransmitted (3 recommended, 5 is default) in the SCE. This setting controls the number of times that TCP retransmits an individual data segment (non-connect segment) before the connection is aborted. The retransmission time-out is doubled with each successive retransmission on a connection. It is reset when responses resume. The base time-out value is dynamically determined by the measured round-trip time on the connection.


Parameter:

[value of 3]


Technical Mechanism:

(1) GPO: Computer ConfigurationWindows SettingsSecurity SettingsLocal PoliciesSecurity Options!MSS: (TcpMaxDataRetransmissions IPv6) How many times unacknowledged data is retransmitted (3 recommended, 5 is default) (2) REG: HKEY_LOCAL_MACHINESystemCurrentControlSetServicesTcpip6Parameters!TcpMaxDataRetransmissions

CCSS Severity:CCSS Metrics:
CCSS Score : 8.2Attack Vector: NETWORK
Exploit Score: 3.9Attack Complexity: LOW
Impact Score: 4.2Privileges Required: NONE
Severity: HIGHUser Interaction: NONE
Vector: AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:HScope: UNCHANGED
 Confidentiality: NONE
 Integrity: LOW
 Availability: HIGH
  

References:
Resource IdReference
SCAP Repo OVAL Definitionoval:org.secpod.oval:def:22538


OVAL    1
oval:org.secpod.oval:def:22538
XCCDF    7
xccdf_org.secpod_benchmark_HIPAA_45CFR_164_Windows_8_1
xccdf_org.secpod_benchmark_ISO27001_Windows_8_1
xccdf_org.secpod_benchmark_NIST_800_53_r4_Windows_8_1
xccdf_org.secpod_benchmark_PCI_3_2_Windows_8_1
...

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