CVSS: 6.5EPSS: 0%CPEs: 241EXPL: 0CVE-2021-0228 – Junos OS: MX Series: DDoS LACP violation upon receipt of specific layer 2 frames in EVPN-VXLAN deployment
https://notcve.org/view.php?id=CVE-2021-0228
An improper check for unusual or exceptional conditions vulnerability in Juniper Networks MX Series platforms with Trio-based MPC (Modular Port Concentrator) deployed in (Ethernet VPN) EVPN-(Virtual Extensible LAN) VXLAN configuration, may allow an attacker sending specific Layer 2 traffic to cause Distributed Denial of Service (DDoS) protection to trigger unexpectedly, resulting in traffic impact. Continued receipt and processing of this specific Layer 2 frames will sustain the Denial of Service (DoS) condition. An indication of compromise is to check DDOS LACP violations: user@device> show ddos-protection protocols statistics brief | match lacp This issue only affects the MX Series platforms with Trio-based MPC. No other products or platforms are affected. This issue affects: Juniper Networks Junos OS on MX Series: 15.1 versions prior to 15.1R7-S9; 17.3 versions prior to 17.3R3-S11; 17.4 versions prior to 17.4R3-S4; 18.1 versions prior to 18.1R3-S12; 18.2 versions prior to 18.2R2-S8, 18.2R3-S8; 18.3 versions prior to 18.3R3-S4; 18.4 versions prior to 18.4R1-S8, 18.4R2-S7, 18.4R3-S7; 19.1 versions prior to 19.1R3-S4; 19.2 versions prior to 19.2R1-S6; 19.3 versions prior to 19.3R3-S2; 19.4 versions prior to 19.4R2-S4, 19.4R3-S2; 20.1 versions prior to 20.1R2, 20.1R3; 20.2 versions prior to 20.2R2-S1, 20.2R3; 20.3 versions prior to 20.3R1-S1, 20.3R2; Una vulnerabilidad comprobación inapropiada para condiciones inusuales o excepcionales en las plataformas Juniper Networks MX Series con MPC (Modular Port Concentrator) basado en Trio implementado en (Ethernet VPN) EVPN- (Virtual Extensible LAN) configuración VXLAN, puede permitir a un atacante enviar tráfico específico de Capa 2 para causar que la protección de Denegación de Servicio distribuida (DDoS) se active inesperadamente, resultando en un impacto en el tráfico. • https://kb.juniper.net/JSA11123 • CWE-754: Improper Check for Unusual or Exceptional Conditions •
CVSS: 7.8EPSS: 0%CPEs: 197EXPL: 0CVE-2021-0223 – Junos OS: telnetd.real Local Privilege Escalation vulnerabilities in SUID binaries
https://notcve.org/view.php?id=CVE-2021-0223
A local privilege escalation vulnerability in telnetd.real of Juniper Networks Junos OS may allow a locally authenticated shell user to escalate privileges and execute arbitrary commands as root. telnetd.real is shipped with setuid permissions enabled and is owned by the root user, allowing local users to run telnetd.real with root privileges. This issue affects Juniper Networks Junos OS: all versions prior to 15.1R7-S9; 17.3 versions prior to 17.3R3-S11; 17.4 versions prior to 17.4R2-S12, 17.4R3-S3; 18.1 versions prior to 18.1R3-S11; 18.2 versions prior to 18.2R3-S6; 18.3 versions prior to 18.3R2-S4, 18.3R3-S4; 18.4 versions prior to 18.4R2-S7, 18.4R3-S6; 19.1 versions prior to 19.1R2-S2, 19.1R3-S4; 19.2 versions prior to 19.2R1-S6, 19.2R3-S1; 19.3 versions prior to 19.3R3-S1; 19.4 versions prior to 19.4R2-S2, 19.4R3; 20.1 versions prior to 20.1R1-S4, 20.1R2; 20.2 versions prior to 20.2R2. Una vulnerabilidad de escalada de privilegios local en telnetd.real de Juniper Networks Junos OS, puede permitir a un usuario de shell autenticado local escalar privilegios y ejecutar comandos arbitrarios como root. telnetd.real es enviado con permisos setuid habilitados y es propiedad del usuario root, permitiendo a usuarios locales ejecutar telnetd.real con privilegios root. Este problema afecta a Juniper Networks Junos OS: todas las versiones anteriores a 15.1R7-S9; versiones 17.3 anteriores a 17.3R3-S11; versiones 17.4 anteriores a 17.4R2-S12, 17.4R3-S3; versiones 18.1 anteriores a 18.1R3-S11; versiones 18.2 anteriores a 18.2R3-S6; versiones 18.3 anteriores a 18.3R2-S4, 18.3R3-S4; versiones 18.4 anteriores a 18.4R2-S7, 18.4R3-S6; versiones 19.1 anteriores a 19.1R2-S2, 19.1R3-S4; versiones 19.2 anteriores a 19.2R1-S6, 19.2R3-S1; versiones 19.3 anteriores a 19.3R3-S1; versiones 19.4 anteriores a 19.4R2-S2, 19.4R3; versiones 20.1 anteriores a 20. • https://kb.juniper.net/JSA11114 • CWE-250: Execution with Unnecessary Privileges CWE-269: Improper Privilege Management •
CVSS: 7.4EPSS: 0%CPEs: 285EXPL: 0CVE-2021-0222 – Junos OS: Upon receipt of certain protocol packets with invalid payloads a self-propagating Denial of Service may occur.
https://notcve.org/view.php?id=CVE-2021-0222
A vulnerability in Juniper Networks Junos OS allows an attacker to cause a Denial of Service (DoS) to the device by sending certain crafted protocol packets from an adjacent device with invalid payloads to the device. These crafted packets, which should be discarded, are instead replicated and sent to the RE. Over time, a Denial of Service (DoS) occurs. Continued receipt of these crafted protocol packets will cause an extended Denial of Service (DoS) condition, which may cause wider traffic impact due to protocol flapping. An indication of compromise is to check "monitor interface traffic" on the ingress and egress port packet counts. • https://kb.juniper.net/JSA11094 • CWE-16: Configuration •
CVSS: 6.5EPSS: 0%CPEs: 221EXPL: 1CVE-2021-0215 – Junos OS: EX Series, QFX Series, SRX Branch Series, MX Series: Memory leak in packet forwarding engine due to 802.1X authenticator port interface flaps
https://notcve.org/view.php?id=CVE-2021-0215
On Juniper Networks Junos EX series, QFX Series, MX Series and SRX branch series devices, a memory leak occurs every time the 802.1X authenticator port interface flaps which can lead to other processes, such as the pfex process, responsible for packet forwarding, to crash and restart. An administrator can use the following CLI command to monitor the status of memory consumption: user@device> show task memory detail Please refer to https://kb.juniper.net/KB31522 for details. This issue affects Juniper Networks Junos OS: 14.1X53 versions prior to 14.1X53-D54; 15.1X49 versions prior to 15.1X49-D240 ; 15.1X53 versions prior to 15.1X53-D593; 16.1 versions prior to 16.1R7-S8; 17.2 versions prior to 17.2R3-S4; 17.3 versions prior to 17.3R3-S8; 17.4 versions prior to 17.4R2-S11, 17.4R3-S2; 18.1 versions prior to 18.1R3-S10 ; 18.2 versions prior to 18.2R2-S7, 18.2R3-S3; 18.3 versions prior to 18.3R2-S4, 18.3R3-S2; 18.4 versions prior to 18.4R1-S7, 18.4R2-S4, 18.4R3-S2; 19.1 versions prior to 19.1R1-S5, 19.1R2-S2, 19.1R3; 19.2 versions prior to 19.2R1-S5, 19.2R2; 19.3 versions prior to 19.3R2-S3, 19.3R3; 19.4 versions prior to 19.4R1-S2, 19.4R2. This issue does not affect Juniper Networks Junos OS 12.3, 15.1. En los dispositivos de Juniper Networks Junos serie EX, Serie QFX y serie de la rama SRX, ocurre un filtrado de memoria cada vez que la interfaz del puerto del autenticador 802.1X se interrumpe, lo que puede conllevar a que otros procesos, tales como el proceso pfex, responsable del reenvío de paquetes, se bloquee y reinicie. • https://kb.juniper.net/JSA11105 • CWE-400: Uncontrolled Resource Consumption CWE-401: Missing Release of Memory after Effective Lifetime •
CVSS: 10.0EPSS: 0%CPEs: 336EXPL: 0CVE-2021-0211 – Junos OS and Junos OS Evolved: Upon receipt of a specific BGP FlowSpec message network traffic may be disrupted.
https://notcve.org/view.php?id=CVE-2021-0211
An improper check for unusual or exceptional conditions in Juniper Networks Junos OS and Junos OS Evolved Routing Protocol Daemon (RPD) service allows an attacker to send a valid BGP FlowSpec message thereby causing an unexpected change in the route advertisements within the BGP FlowSpec domain leading to disruptions in network traffic causing a Denial of Service (DoS) condition. Continued receipt of these update messages will cause a sustained Denial of Service condition. This issue affects Juniper Networks: Junos OS: All versions prior to 17.3R3-S10 with the exceptions of 15.1X49-D240 on SRX Series and 15.1R7-S8 on EX Series; 17.3 versions prior to 17.3R3-S10; 17.4 versions prior to 17.4R2-S12, 17.4R3-S4; 18.1 versions prior to 18.1R3-S12; 18.2 versions prior to 18.2R2-S8, 18.2R3-S6; 18.3 versions prior to 18.3R3-S4; 18.4 versions prior to 18.4R1-S8, 18.4R2-S6, 18.4R3-S6; 19.1 versions prior to 19.1R1-S6, 19.1R2-S2, 19.1R3-S3; 19.2 versions prior to 19.2R3-S1; 19.3 versions prior to 19.3R2-S5, 19.3R3-S1; 19.4 versions prior to 19.4R1-S3, 19.4R2-S3, 19.4R3; 20.1 versions prior to 20.1R2; 20.2 versions prior to 20.2R1-S3 20.2R2; 20.3 versions prior to 20.3R1-S1, 20.3R2. Junos OS Evolved: All versions prior to 20.3R1-S1-EVO, 20.3R2-EVO. Una comprobación inapropiada de condiciones inusuales o excepcionales en Juniper Networks. • https://kb.juniper.net/JSA11101 • CWE-754: Improper Check for Unusual or Exceptional Conditions •