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CloudLinux AlmaLinux OS 9 Security Technical Implementation Guide

Rules, Groups, and Values defined within the XCCDF Benchmark

  • SRG-OS-000480-GPOS-00227

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  • SRG-OS-000480-GPOS-00227

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  • AlmaLinux OS 9 must limit the number of bogus Internet Control Message Protocol (ICMP) response errors logs.

    Some routers will send responses to broadcast frames that violate RFC-1122, which fills up a log file system with many useless error messages. An attacker may take advantage of this and attempt to ...
    Rule Medium Severity
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  • SRG-OS-000480-GPOS-00227

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  • AlmaLinux OS 9 must not respond to Internet Control Message Protocol (ICMP) echoes sent to a broadcast address.

    Responding to broadcast (ICMP) echoes facilitates network mapping and provides a vector for amplification attacks. Ignoring ICMP echo requests (pings) sent to broadcast or multicast addresses make...
    Rule Medium Severity
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