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AIX7-00-003096 - AIX must set Stack Execution Disable (SED) system wide mode to all.

Information

DoS is a condition when a resource is not available for legitimate users. When this occurs, the organization either cannot accomplish its mission or must operate at degraded capacity.

Managing excess capacity ensures that sufficient capacity is available to counter flooding attacks. Employing increased capacity and service redundancy may reduce the susceptibility to some DoS attacks. Managing excess capacity may include, for example, establishing selected usage priorities, quotas, or partitioning.

Satisfies: SRG-OS-000142-GPOS-00071, SRG-OS-000480-GPOS-00227, SRG-OS-000433-GPOS-00192

Solution

From the command prompt, run the following command to set the SED systemwide mode to select:
# sedmgr -m all

AIX has to be rebooted for the new SED mode to take effect.

See Also

https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_IBM_AIX_7-x_V3R3_STIG.zip

Item Details

Category: CONFIGURATION MANAGEMENT, SYSTEM AND COMMUNICATIONS PROTECTION, SYSTEM AND INFORMATION INTEGRITY

References: 800-53|CM-6b., 800-53|SC-5(2), 800-53|SI-16, CAT|II, CCI|CCI-000366, CCI|CCI-001095, CCI|CCI-002824, Rule-ID|SV-215398r958528_rule, STIG-ID|AIX7-00-003096, STIG-Legacy|SV-101541, STIG-Legacy|V-91443, Vuln-ID|V-215398

Plugin: Unix

Control ID: 3335c5f457db2c3af825c9eec15d6ab35c471149bdd6fcc13f076948f1f9f754