The version of amazon-ssm-agent installed on the remote host is prior to 3.3.859.0-1. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2024-2645 advisory.

    An attacker may cause an HTTP/2 endpoint to read arbitrary amounts of header data by sending an excessive     number of CONTINUATION frames. Maintaining HPACK state requires parsing and processing all HEADERS and     CONTINUATION frames on a connection. When a request's headers exceed MaxHeaderBytes, no memory is     allocated to store the excess headers, but they are still parsed. This permits an attacker to cause an     HTTP/2 endpoint to read arbitrary amounts of header data, all associated with a request which is going to     be rejected. These headers can include Huffman-encoded data which is significantly more expensive for the     receiver to decode than for an attacker to send. The fix sets a limit on the amount of excess header     frames we will process before closing a connection. (CVE-2023-45288)

    The various Is methods (IsPrivate, IsLoopback, etc) did not work as expected for IPv4-mapped IPv6     addresses, returning false for addresses which would return true in their traditional IPv4 forms.
    (CVE-2024-24790)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Detections

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Amazon Linux 2 : amazon-ssm-agent (ALAS-2024-2645)

critical Nessus Plugin ID 208102

Version 1.2

Version 1.1

Version 1.2 Oct 4, 2024, 4:02 PM Exploit attributes ("Exploitability ease" changed from "No known exploits are available" to "Exploits are available") Plugin Feed: 202410041602
Version 1.1 Oct 4, 2024, 1:49 AM New Plugin Feed: 202410040149