Vulnerabilities

<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

<br /> An Improper Input Validation vulnerability in the routing protocol daemon (rpd) of Juniper Networks allows an attacker to cause a Denial of Service (DoS )to the device upon receiving and processing a specific malformed ISO VPN BGP UPDATE packet.<br /> <br /> Continued receipt of this packet will cause a sustained Denial of Service condition.<br /> <br /> This issue affects:<br /> <br /> <br /> <br /> * Juniper Networks Junos OS:<br /> * All versions prior to 20.4R3-S6;<br /> * 21.1 versions prior to 21.1R3-S5;<br /> * 21.2 versions prior to 21.2R3-S4;<br /> * 21.3 versions prior to 21.3R3-S3;<br /> * 21.4 versions prior to 21.4R3-S3;<br /> * 22.1 versions prior to 22.1R2-S2, 22.1R3;<br /> * 22.2 versions prior to 22.2R2-S1, 22.2R3;<br /> * 22.3 versions prior to 22.3R1-S2, 22.3R2.<br /> <br /> <br /> <br /> <br /> Juniper Networks Junos OS Evolved:<br /> <br /> <br /> <br /> * All versions prior to 20.4R3-S6-EVO;<br /> * 21.1-EVO version 21.1R1-EVO and later versions prior to 21.2R3-S4-EVO;<br /> * 21.3-EVO versions prior to 21.3R3-S3-EVO;<br /> * 21.4-EVO versions prior to 21.4R3-S3-EVO;<br /> * 22.1-EVO versions prior to 22.1R3-EVO;<br /> * 22.2-EVO versions prior to 22.2R2-S1-EVO, 22.2R3-EVO;<br /> * 22.3-EVO versions prior to 22.3R1-S2-EVO, 22.3R2-EVO.<br /> <br /> <br /> <br /> <br /> <br /> <br />

<br /> An Allocation of Resources Without Limits or Throttling vulnerability in Juniper Networks Junos OS allows an unauthenticated, network-based attacker to cause Denial of Service (DoS).<br /> <br /> On all Junos OS QFX5000 Series and EX4000 Series platforms, when a high number of VLANs are configured, a specific DHCP packet will cause PFE hogging which will lead to dropping of socket connections.<br /> <br /> This issue affects:<br /> <br /> Juniper Networks Junos OS on QFX5000 Series and EX4000 Series<br /> <br /> <br /> <br /> * 21.1 versions prior to 21.1R3-S5;<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-S3;<br /> * 22.2 versions prior to 22.2R3-S1;<br /> * 22.3 versions prior to 22.3R2-S2, 22.3R3;<br /> * 22.4 versions prior to 22.4R2.<br /> <br /> <br /> <br /> <br /> This issue does not affect Juniper Networks Junos OS versions prior to 21.1R1<br /> <br /> <br /> <br />

<br /> An Improper Input Validation vulnerability in the Packet Forwarding Engine of Juniper Networks Junos OS allows an unauthenticated, network-based attacker to cause memory leak, leading to Denial of Service (DoS).<br /> <br /> On all Junos OS QFX5000 Series platforms, when pseudo-VTEP (Virtual Tunnel End Point) is configured under EVPN-VXLAN scenario, and specific DHCP packets are transmitted, DMA memory leak is observed. Continuous receipt of these specific DHCP packets will cause memory leak to reach 99% and then cause the protocols to stop working and traffic is impacted, leading to Denial of Service (DoS) condition. A manual reboot of the system recovers from the memory leak.<br /> <br /> To confirm the memory leak, monitor for "sheaf:possible leak" and "vtep not found" messages in the logs.<br /> <br /> This issue affects:<br /> <br /> Juniper Networks Junos OS QFX5000 Series:<br /> <br /> <br /> <br /> * All versions prior to 20.4R3-S6;<br /> * 21.1 versions prior to 21.1R3-S5;<br /> * 21.2 versions prior to 21.2R3-S5;<br /> * 21.3 versions prior to 21.3R3-S4;<br /> * 21.4 versions prior to 21.4R3-S3;<br /> * 22.1 versions prior to 22.1R3-S2;<br /> * 22.2 versions prior to 22.2R2-S2, 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 /> <br /> <br />

<br /> An Improper Release of Memory Before Removing Last Reference vulnerability in Packet Forwarding Engine (PFE) of Juniper Networks Junos OS allows a local, low privileged attacker to cause an FPC crash, leading to Denial of Service (DoS).<br /> <br /> On all Junos MX Series with MPC1 - MPC9, LC480, LC2101, MX10003, and MX80, when Connectivity-Fault-Management (CFM) is enabled in a VPLS scenario, and a specific LDP related command is run, an FPC will crash and reboot. Continued execution of this specific LDP command can lead to sustained Denial of Service condition.<br /> <br /> This issue affects:<br /> <br /> Juniper Networks Junos OS on MX Series:<br /> <br /> <br /> <br /> * All versions prior to 20.4R3-S7;<br /> * 21.1 versions prior to 21.1R3-S5;<br /> * 21.2 versions prior to 21.2R3-S4;<br /> * 21.3 versions prior to 21.3R3-S4;<br /> * 21.4 versions prior to 21.4R3-S3;<br /> * 22.1 versions prior to 22.1R3-S1;<br /> * 22.2 versions prior to 22.2R2-S1, 22.2R3;<br /> * 22.3 versions prior to 22.3R1-S2, 22.3R2.<br /> <br /> <br /> <br /> <br /> <br /> <br />

<br /> An Incorrect Default Permissions vulnerability in Juniper Networks Junos OS allows an unauthenticated attacker with local access to the device to create a backdoor with root privileges. The issue is caused by improper directory permissions on a certain system directory, allowing an attacker with access to this directory to create a backdoor with root privileges.<br /> <br /> This issue affects Juniper Networks Junos OS:<br /> <br /> <br /> <br /> * All versions prior to 20.4R3-S5;<br /> * 21.1 versions prior to 21.1R3-S4;<br /> * 21.2 versions prior to 21.2R3-S4;<br /> * 21.3 versions prior to 21.3R3-S3;<br /> * 21.4 versions prior to 21.4R3-S1.<br /> <br /> <br /> <br /> <br /> <br /> <br />

<br /> An Improper Restriction of Communication Channel to Intended Endpoints vulnerability in the NetworkStack agent daemon (nsagentd) of Juniper Networks Junos OS Evolved allows an unauthenticated network based attacker to cause limited impact to the availability of the system.<br /> <br /> If specific packets reach the Routing-Engine (RE) these will be processed normally even if firewall filters are in place which should have prevented this. This can lead to a limited, increased consumption of resources resulting in a Denial-of-Service (DoS), and unauthorized access.<br /> <br /> CVE-2023-44196 is a prerequisite for this issue.<br /> <br /> This issue affects Juniper Networks Junos OS Evolved:<br /> <br /> <br /> <br /> * 21.3-EVO versions prior to 21.3R3-S5-EVO;<br /> * 21.4-EVO versions prior to 21.4R3-S4-EVO;<br /> * 22.1-EVO version 22.1R1-EVO and later;<br /> * 22.2-EVO version 22.2R1-EVO and later;<br /> * 22.3-EVO versions prior to 22.3R2-S2-EVO, 22.3R3-S1-EVO;<br /> * 22.4-EVO versions prior to 22.4R3-EVO.<br /> <br /> <br /> <br /> <br /> This issue doesn&amp;#39;t not affected Junos OS Evolved versions prior to 21.3R1-EVO.<br /> <br /> <br /> <br />

<br /> An Improper Check for Unusual or Exceptional Conditions in the Packet Forwarding Engine (pfe) of Juniper Networks Junos OS Evolved on PTX10003 Series allows an unauthenticated adjacent attacker to cause an impact to the integrity of the system.<br /> <br /> When specific transit MPLS packets are received by the PFE, these packets are internally forwarded to the RE. This issue is a prerequisite for CVE-2023-44195.<br /> <br /> This issue affects Juniper Networks Junos OS Evolved:<br /> <br /> <br /> <br /> * All versions prior to 20.4R3-S8-EVO;<br /> * 21.1-EVO version 21.1R1-EVO and later;<br /> * 21.2-EVO versions prior to 21.2R3-S6-EVO;<br /> * 21.3-EVO version 21.3R1-EVO and later;<br /> * 21.4-EVO versions prior to 21.4R3-S3-EVO;<br /> * 22.1-EVO versions prior to 22.1R3-S4-EVO;<br /> * 22.2-EVO versions prior to 22.2R3-S3-EVO;<br /> * 22.3-EVO versions prior to 22.3R2-S2-EVO, 22.3R3-EVO;<br /> * 22.4-EVO versions prior to 22.4R2-EVO.<br /> <br /> <br /> <br /> <br /> <br /> <br />

<br /> An Out-of-Bounds Write vulnerability in the Routing Protocol Daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS).<br /> <br /> On all Junos OS and Junos OS Evolved devices an rpd crash and restart can occur while processing BGP route updates received over an established BGP session. This specific issue is observed for BGP routes learned via a peer which is configured with a BGP import policy that has hundreds of terms matching IPv4 and/or IPv6 prefixes.<br /> <br /> This issue affects Juniper Networks Junos OS:<br /> <br /> <br /> <br /> * All versions prior to 20.4R3-S8;<br /> * 21.1 version 21.1R1 and later versions;<br /> * 21.2 versions prior to 21.2R3-S2;<br /> * 21.3 versions prior to 21.3R3-S5;<br /> * 21.4 versions prior to 21.4R2-S1, 21.4R3-S5.<br /> <br /> <br /> <br /> <br /> This issue affects Juniper Networks Junos OS Evolved:<br /> <br /> <br /> <br /> * All versions prior to 20.4R3-S8-EVO;<br /> * 21.1-EVO version 21.1R1-EVO and later versions;<br /> * 21.2-EVO versions prior to 21.2R3-S2-EVO;<br /> * 21.3-EVO version 21.3R1-EVO and later versions;<br /> * 21.4-EVO versions prior to 21.4R2-S1-EVO, 21.4R3-S5-EVO.<br /> <br /> <br /> <br /> <br /> <br /> <br />

<br /> An Improper Check for Unusual or Exceptional Conditions vulnerability in the SIP ALG of Juniper Networks Junos OS on SRX Series and MX Series allows an unauthenticated network-based attacker to cause an integrity impact in connected networks.<br /> <br /> If the SIP ALG is configured and a device receives a specifically malformed SIP packet, the device prevents this packet from being forwarded, but any subsequently received retransmissions of the same packet are forwarded as if they were valid.<br /> <br /> This issue affects Juniper Networks Junos OS on SRX Series and MX Series:<br /> <br /> <br /> <br /> * 20.4 versions prior to 20.4R3-S5;<br /> * 21.1 versions prior to 21.1R3-S4;<br /> * 21.2 versions prior to 21.2R3-S4;<br /> * 21.3 versions prior to 21.3R3-S3;<br /> * 21.4 versions prior to 21.4R3-S2;<br /> * 22.1 versions prior to 22.1R2-S2, 22.1R3;<br /> * 22.2 versions prior to 22.2R2-S1, 22.2R3;<br /> * 22.3 versions prior to 22.3R1-S2, 22.3R2.<br /> <br /> <br /> <br /> <br /> This issue doesn&amp;#39;t not affected releases prior to 20.4R1.<br /> <br /> <br /> <br />

<br /> An Improper Check for Unusual or Exceptional Conditions vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on MX Series allows a network-based, unauthenticated attacker to cause a Denial of Service (DoS).<br /> <br /> On Junos MX Series platforms with Precision Time Protocol (PTP) configured, a prolonged routing protocol churn can lead to an FPC crash and restart.<br /> <br /> This issue affects Juniper Networks Junos OS on MX Series:<br /> <br /> <br /> <br /> * All versions prior to 20.4R3-S4;<br /> * 21.1 version 21.1R1 and later versions;<br /> * 21.2 versions prior to 21.2R3-S2;<br /> * 21.3 versions prior to 21.3R3-S5;<br /> * 21.4 versions prior to 21.4R3;<br /> * 22.1 versions prior to 22.1R3;<br /> * 22.2 versions prior to 22.2R1-S1, 22.2R2.<br /> <br /> <br /> <br /> <br /> <br /> <br />

<br /> An Incorrect Permission Assignment for Critical Resource vulnerability in a specific file of Juniper Networks Junos OS and Junos OS Evolved allows a local authenticated attacker to read configuration changes without having the permissions.<br /> <br /> When a user with the respective permissions commits a configuration change, a specific file is created. That file is readable even by users with no permissions to access the configuration. This can lead to privilege escalation as the user can read the password hash when a password change is being committed.<br /> <br /> This issue affects:<br /> <br /> Juniper Networks Junos OS<br /> <br /> <br /> <br /> * All versions prior to 20.4R3-S4;<br /> * 21.1 versions prior to 21.1R3-S4;<br /> * 21.2 versions prior to 21.2R3-S2;<br /> * 21.3 versions prior to 21.3R2-S2, 21.3R3-S1;<br /> * 21.4 versions prior to 21.4R2-S1, 21.4R3.<br /> <br /> <br /> <br /> <br /> Juniper Networks Junos OS Evolved<br /> <br /> <br /> <br /> * All versions prior to 20.4R3-S4-EVO;<br /> * 21.1 versions prior to 21.1R3-S2-EVO;<br /> * 21.2 versions prior to 21.2R3-S2-EVO;<br /> * 21.3 versions prior to 21.3R3-S1-EVO;<br /> * 21.4 versions prior to 21.4R2-S2-EVO.<br /> <br /> <br /> <br /> <br /> <br /> <br />