CVSS: 6.5EPSS: 0%CPEs: 122EXPL: 1CVE-2020-1625 – Junos OS: Kernel memory leak in virtual-memory due to interface flaps
https://notcve.org/view.php?id=CVE-2020-1625
The kernel memory usage represented as "temp" via 'show system virtual-memory' may constantly increase when Integrated Routing and Bridging (IRB) is configured with multiple underlay physical interfaces, and one interface flaps. This memory leak can affect running daemons (processes), leading to an extended Denial of Service (DoS) condition. Usage of "temp" virtual memory, shown here by a constantly increasing value of outstanding Requests, can be monitored by executing the 'show system virtual-memory' command as shown below: user@junos> show system virtual-memory |match "fpc|type|temp" fpc0: -------------------------------------------------------------------------- Type InUse MemUse HighUse Requests Size(s) temp 2023 431K - 10551 16,32,64,128,256,512,1024,2048,4096,65536,262144,1048576,2097152,4194304,8388608 fpc1: -------------------------------------------------------------------------- Type InUse MemUse HighUse Requests Size(s) temp 2020 431K - 6460 16,32,64,128,256,512,1024,2048,4096,65536,262144,1048576,2097152,4194304,8388608 user@junos> show system virtual-memory |match "fpc|type|temp" fpc0: -------------------------------------------------------------------------- Type InUse MemUse HighUse Requests Size(s) temp 2023 431K - 16101 16,32,64,128,256,512,1024,2048,4096,65536,262144,1048576,2097152,4194304,8388608 fpc1: -------------------------------------------------------------------------- Type InUse MemUse HighUse Requests Size(s) temp 2020 431K - 6665 16,32,64,128,256,512,1024,2048,4096,65536,262144,1048576,2097152,4194304,8388608 user@junos> show system virtual-memory |match "fpc|type|temp" fpc0: -------------------------------------------------------------------------- Type InUse MemUse HighUse Requests Size(s) temp 2023 431K - 21867 16,32,64,128,256,512,1024,2048,4096,65536,262144,1048576,2097152,4194304,8388608 fpc1: -------------------------------------------------------------------------- Type InUse MemUse HighUse Requests Size(s) temp 2020 431K - 6858 16,32,64,128,256,512,1024,2048,4096,65536,262144,1048576,2097152,4194304,8388608 This issue affects Juniper Networks Junos OS: 16.1 versions prior to 16.1R7-S6; 17.1 versions prior to 17.1R2-S11, 17.1R3-S1; 17.2 versions prior to 17.2R2-S8, 17.2R3-S3; 17.2X75 versions prior to 17.2X75-D44; 17.3 versions prior to 17.3R2-S5, 17.3R3-S6; 17.4 versions prior to 17.4R2-S5, 17.4R3; 18.1 versions prior to 18.1R3-S7; 18.2 versions prior to 18.2R2-S5, 18.2R3; 18.2X75 versions prior to 18.2X75-D33, 18.2X75-D411, 18.2X75-D420, 18.2X75-D60; 18.3 versions prior to 18.3R1-S5, 18.3R2-S3, 18.3R3; 18.4 versions prior to 18.4R2-S2, 18.4R3; 19.1 versions prior to 19.1R1-S3, 19.1R2; 19.2 versions prior to 19.2R1-S3, 19.2R2. This issue does not affect Juniper Networks Junos OS 12.3 and 15.1. El uso de la memoria del kernel representado como "temp" por medio de “show system virtual-memory” puede incrementar constantemente cuando el Integrated Routing and Bridging (IRB) es configurado con múltiples interfaces físicas subyacentes y flaps de una interfaz. • https://kb.juniper.net/JSA11004 • CWE-400: Uncontrolled Resource Consumption CWE-401: Missing Release of Memory after Effective Lifetime •
CVSS: 6.7EPSS: 0%CPEs: 123EXPL: 0CVE-2020-1619 – Junos OS: QFX10K Series, EX9200 Series, MX Series, PTX Series: Privilege escalation vulnerability in NG-RE.
https://notcve.org/view.php?id=CVE-2020-1619
A privilege escalation vulnerability in Juniper Networks QFX10K Series, EX9200 Series, MX Series, and PTX Series with Next-Generation Routing Engine (NG-RE), allows a local authenticated high privileged user to access the underlying WRL host. This issue only affects QFX10K Series with NG-RE, EX9200 Series with NG-RE, MX Series with NG-RE and PTX Series with NG-RE; which uses vmhost. This issue affects Juniper Networks Junos OS: 16.1 versions prior to 16.1R7-S6; 16.2 versions prior to 16.2R2-S11; 17.1 versions prior to 17.1R2-S11, 17.1R3; 17.2 versions prior to 17.2R1-S9, 17.2R3-S3; 17.3 versions prior to 17.3R2-S5, 17.3R3-S7; 17.4 versions prior to 17.4R2-S7, 17.4R3; 18.1 versions prior to 18.1R3-S4; 18.2 versions prior to 18.2R3; 18.2X75 versions prior to 18.2X75-D50; 18.3 versions prior to 18.3R2; 18.4 versions prior to 18.4R2. To identify whether the device has NG-RE with vmhost, customer can run the following command: > show vmhost status Compute cluster: rainier-re-cc Compute Node: rainier-re-cn, Online If the "show vmhost status" is not supported, then the device does not have NG-RE with vmhost. Una vulnerabilidad de escalada de privilegios en Juniper Networks QFX10K Series, EX9200 Series, MX Series, y PTX Series con Next-Generation Routing Engine (NG-RE), permite a un usuario autenticado local con privilegios elevados acceder al host WRL subyacente. • https://kb.juniper.net/JSA11002 • CWE-20: Improper Input Validation CWE-264: Permissions, Privileges, and Access Controls •
CVSS: 6.9EPSS: 0%CPEs: 218EXPL: 0CVE-2020-1618 – Junos OS: EX and QFX Series: Console port authentication bypass vulnerability
https://notcve.org/view.php?id=CVE-2020-1618
On Juniper Networks EX and QFX Series, an authentication bypass vulnerability may allow a user connected to the console port to login as root without any password. This issue might only occur in certain scenarios: • At the first reboot after performing device factory reset using the command “request system zeroize”; or • A temporary moment during the first reboot after the software upgrade when the device configured in Virtual Chassis mode. This issue affects Juniper Networks Junos OS on EX and QFX Series: 14.1X53 versions prior to 14.1X53-D53; 15.1 versions prior to 15.1R7-S4; 15.1X53 versions prior to 15.1X53-D593; 16.1 versions prior to 16.1R7-S4; 17.1 versions prior to 17.1R2-S11, 17.1R3-S1; 17.2 versions prior to 17.2R3-S3; 17.3 versions prior to 17.3R2-S5, 17.3R3-S6; 17.4 versions prior to 17.4R2-S9, 17.4R3; 18.1 versions prior to 18.1R3-S8; 18.2 versions prior to 18.2R2; 18.3 versions prior to 18.3R1-S7, 18.3R2. This issue does not affect Juniper Networks Junos OS 12.3. En Juniper Networks EX y QFX Series, una vulnerabilidad de omisión de autenticación puede permitir a un usuario conectado al puerto de la consola iniciar sesión como root sin ninguna contraseña. • https://kb.juniper.net/JSA11001 • CWE-287: Improper Authentication CWE-288: Authentication Bypass Using an Alternate Path or Channel •
CVSS: 7.8EPSS: 0%CPEs: 63EXPL: 0CVE-2020-1617 – Junos OS: PTX1000 and PTX10000 Series, QFX10000 Series using non-AFT architectures: A specific genuine packet inspected by sFlow will cause a reboot.
https://notcve.org/view.php?id=CVE-2020-1617
This issue occurs on Juniper Networks Junos OS devices which do not support Advanced Forwarding Interface (AFI) / Advanced Forwarding Toolkit (AFT). Devices using AFI and AFT are not exploitable to this issue. An improper initialization of memory in the packet forwarding architecture in Juniper Networks Junos OS non-AFI/AFT platforms which may lead to a Denial of Service (DoS) vulnerability being exploited when a genuine packet is received and inspected by non-AFT/AFI sFlow and when the device is also configured with firewall policers. This first genuine packet received and inspected by sampled flow (sFlow) through a specific firewall policer will cause the device to reboot. After the reboot has completed, if the device receives and sFlow inspects another genuine packet seen through a specific firewall policer, the device will generate a core file and reboot. • https://github.com/Juniper/AFI https://kb.juniper.net/JSA11000 https://www.juniper.net/documentation/en_US/junos/topics/example/example-configuring-vpws-service-with-evpn-signaling-mechanisms.html • CWE-665: Improper Initialization •
CVSS: 10.0EPSS: 0%CPEs: 123EXPL: 0CVE-2020-1615 – Junos OS: vMX: Default credentials supplied in vMX configuration
https://notcve.org/view.php?id=CVE-2020-1615
The factory configuration for vMX installations, as shipped, includes default credentials for the root account. Without proper modification of these default credentials by the administrator, an attacker could exploit these credentials and access the vMX instance without authorization. This issue affects Juniper Networks Junos OS: 17.1 versions prior to 17.1R2-S11, 17.1R3-S2 on vMX; 17.2 versions prior to 17.2R3-S3 on vMX; 17.3 versions prior to 17.3R2-S5, 17.3R3-S7 on vMX; 17.4 versions prior to 17.4R2-S9, 17.4R3 on vMX; 18.1 versions prior to 18.1R3-S9 on vMX; 18.2 versions prior to 18.2R2-S7, 18.2R3-S3 on vMX; 18.2X75 versions prior to 18.2X75-D420, 18.2X75-D60 on vMX; 18.3 versions prior to 18.3R1-S7, 18.3R2-S3, 18.3R3-S1 on vMX; 18.4 versions prior to 18.4R1-S5, 18.4R2-S3, 18.4R3 on vMX; 19.1 versions prior to 19.1R1-S4, 19.1R2, 19.1R3 on vMX; 19.2 versions prior to 19.2R1-S3, 19.2R2 on vMX; 19.3 versions prior to 19.3R1-S1, 19.3R2 on vMX. La configuración de fábrica para instalaciones de vMX, tal como es entregado, incluye credenciales predeterminadas para la cuenta root. Sin una modificación apropiada de estas credenciales predeterminadas por el administrador, un atacante podría explotar estas credenciales y acceder a la instancia de vMX sin autorización. • https://kb.juniper.net/JSA10998 • CWE-798: Use of Hard-coded Credentials •