CVE-2023-44184

<br /> An Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in the management daemon (mgd) process of Juniper Networks Junos OS and Junos OS Evolved allows a network-based authenticated low-privileged attacker, by executing a specific command via NETCONF, to cause a CPU Denial of Service to the device&amp;#39;s control plane.<br /> <br /> This issue affects:<br /> <br /> Juniper Networks Junos OS<br /> <br /> <br /> <br /> * All versions prior to 20.4R3-S7;<br /> * 21.2 versions prior to 21.2R3-S5;<br /> * 21.3 versions prior to 21.3R3-S5;<br /> * 21.4 versions prior to 21.4R3-S4;<br /> * 22.1 versions prior to 22.1R3-S2;<br /> * 22.2 versions prior to 22.2R3;<br /> * 22.3 versions prior to 22.3R2-S1, 22.3R3;<br /> * 22.4 versions prior to 22.4R1-S2, 22.4R2.<br /> <br /> <br /> <br /> <br /> Juniper Networks Junos OS Evolved<br /> <br /> <br /> <br /> * All versions prior to 21.4R3-S4-EVO;<br /> * 22.1 versions prior to 22.1R3-S2-EVO;<br /> * 22.2 versions prior to 22.2R3-EVO;<br /> * 22.3 versions prior to 22.3R3-EVO;<br /> * 22.4 versions prior to 22.4R2-EVO.<br /> <br /> <br /> <br /> <br /> An indicator of compromise can be seen by first determining if the NETCONF client is logged in and fails to log out after a reasonable period of time and secondly reviewing the WCPU percentage for the mgd process by running the following command:<br /> <br /> mgd process example:<br /> <br /> user@device-re#&gt; show system processes extensive | match "mgd|PID" | except last<br /> PID USERNAME PRI NICE SIZE RES STATE C TIME WCPU COMMAND<br /> 92476 root 100 0 500M 89024K CPU3 3 57.5H 89.60% mgd