CVSS: 9.8EPSS: 0%CPEs: 235EXPL: 0CVE-2021-0254 – Junos OS: Remote code execution vulnerability in overlayd service
https://notcve.org/view.php?id=CVE-2021-0254
A buffer size validation vulnerability in the overlayd service of Juniper Networks Junos OS may allow an unauthenticated remote attacker to send specially crafted packets to the device, triggering a partial Denial of Service (DoS) condition, or leading to remote code execution (RCE). Continued receipt and processing of these packets will sustain the partial DoS. The overlayd daemon handles Overlay OAM packets, such as ping and traceroute, sent to the overlay. The service runs as root by default and listens for UDP connections on port 4789. This issue results from improper buffer size validation, which can lead to a buffer overflow. • https://kb.juniper.net/JSA11147 • CWE-131: Incorrect Calculation of Buffer Size CWE-787: Out-of-bounds Write •
CVSS: 10.0EPSS: 0%CPEs: 127EXPL: 0CVE-2021-0249 – Junos OS: SRX Series: A remote attacker may be able to cause a PFE buffer overflow to arbitrarily remotely execute code or commands on the target device with UTM enabled.
https://notcve.org/view.php?id=CVE-2021-0249
On SRX Series devices configured with UTM services a buffer overflow vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS may allow an attacker to arbitrarily execute code or commands on the target to take over or otherwise impact the device by sending crafted packets to or through the device. This issue affects: Juniper Networks Junos OS on SRX Series: 15.1X49 versions prior to 15.1X49-D190; 17.4 versions prior to 17.4R2-S9; 17.4R3 and later versions prior to 18.1R3-S9; 18.2 versions prior to 18.2R3-S1; 18.3 versions prior to 18.3R2-S3, 18.3R3; 18.4 versions prior to 18.4R2-S3, 18.4R3; 19.1 versions prior to 19.1R1-S4, 19.1R2; 19.2 versions prior to 19.2R1-S1, 19.2R2. An indicator of compromise can be the following text in the UTM log: RT_UTM: AV_FILE_NOT_SCANNED_PASSED_MT: En los dispositivos de la Serie SRX configurados con servicios UTM, una vulnerabilidad de desbordamiento de búfer en el Packet Forwarding Engine (PFE) de Juniper Networks Junos OS, puede permitir a un atacante ejecutar código o comandos arbitrarios en el objetivo para tomar el control o afectar el dispositivo mediante el envío de paquetes diseñados hacia por medio del dispositivo. Este problema afecta a: Juniper Networks Junos OS en la serie SRX: versiones 15.1X49 anteriores a 15.1X49-D190; versiones 17.4 anteriores a 17.4R2-S9; versiones 17.4R3 y posteriores anteriores a 18.1R3-S9; versiones 18.2 anteriores a 18.2R3-S1; versiones 18.3 anteriores a 18.3R2-S3, 18.3R3; versiones 18.4 anteriores a 18.4R2-S3, 18.4R3; versiones 19.1 anteriores a 19.1R1-S4, 19.1R2; versiones 19.2 anteriores a 19.2R1-S1, 19.2R2. Un indicador de compromiso puede ser el siguiente texto en el registro de UTM: RT_UTM: AV_FILE_NOT_SCANNED_PASSED_MT • https://kb.juniper.net/JSA11142 • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') •
CVSS: 10.0EPSS: 0%CPEs: 5EXPL: 0CVE-2021-0248 – NFX Series: Hard-coded credentials allow an attacker to take control of any instance through administrative interfaces.
https://notcve.org/view.php?id=CVE-2021-0248
This issue is not applicable to NFX NextGen Software. On NFX Series devices the use of Hard-coded Credentials in Juniper Networks Junos OS allows an attacker to take over any instance of an NFX deployment. This issue is only exploitable through administrative interfaces. This issue affects: Juniper Networks Junos OS versions prior to 19.1R1 on NFX Series. No other platforms besides NFX Series devices are affected. • https://kb.juniper.net/JSA11141 • CWE-798: Use of Hard-coded Credentials •
CVSS: 6.8EPSS: 0%CPEs: 344EXPL: 0CVE-2021-0247 – Junos OS: PTX Series, QFX Series: Due to a race condition input loopback firewall filters applied to interfaces may not operate even when listed in the running configuration.
https://notcve.org/view.php?id=CVE-2021-0247
A Race Condition (Concurrent Execution using Shared Resource with Improper Synchronization) vulnerability in the firewall process (dfwd) of Juniper Networks Junos OS allows an attacker to bypass the firewall rule sets applied to the input loopback filter on any interfaces of a device. This issue is detectable by reviewing the PFE firewall rules, as well as the firewall counters and seeing if they are incrementing or not. For example: show firewall Filter: __default_bpdu_filter__ Filter: FILTER-INET-01 Counters: Name Bytes Packets output-match-inet 0 0 <<<<<< missing firewall packet count This issue affects: Juniper Networks Junos OS 14.1X53 versions prior to 14.1X53-D53 on QFX Series; 14.1 versions 14.1R1 and later versions prior to 15.1 versions prior to 15.1R7-S6 on QFX Series, PTX Series; 15.1X53 versions prior to 15.1X53-D593 on QFX Series; 16.1 versions prior to 16.1R7-S7 on QFX Series, PTX Series; 16.2 versions prior to 16.2R2-S11, 16.2R3 on QFX Series, PTX Series; 17.1 versions prior to 17.1R2-S11, 17.1R3-S2 on QFX Series, PTX Series; 17.2 versions prior to 17.2R1-S9, 17.2R3-S3 on QFX Series, PTX Series; 17.3 versions prior to 17.3R2-S5, 17.3R3-S7 on QFX Series, PTX Series; 17.4 versions prior to 17.4R2-S9, 17.4R3 on QFX Series, PTX Series; 18.1 versions prior to 18.1R3-S9 on QFX Series, PTX Series; 18.2 versions prior to 18.2R2-S6, 18.2R3-S3 on QFX Series, PTX Series; 18.3 versions prior to 18.3R1-S7, 18.3R2-S3, 18.3R3-S1 on QFX Series, PTX Series; 18.4 versions prior to 18.4R1-S5, 18.4R2-S3, 18.4R2-S7, 18.4R3 on QFX Series, PTX Series; 19.1 versions prior to 19.1R1-S4, 19.1R2-S1, 19.1R3 on QFX Series, PTX Series; 19.2 versions prior to 19.2R1-S3, 19.2R2 on QFX Series, PTX Series. Una vulnerabilidad de Condición de Carrera (Ejecución Concurrente usando Recursos Compartidos con Sincronización Inapropiada) en el proceso de firewall (dfwd) de Juniper Networks Junos OS, permite a un atacante omitir los conjuntos de reglas de firewall aplicados al filtro de bucle de entrada en cualquier interfaz de un dispositivo. Este problema es detectable al revisar las reglas de firewall de PFE, así como los contadores de firewall y visualizar si aumentan o no. • https://kb.juniper.net/JSA11140 • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') •
CVSS: 7.8EPSS: 0%CPEs: 184EXPL: 0CVE-2021-0245 – Junos OS: Junos Fusion: Hard-coded credentials on satellite devices allows a locally authenticated attacker to elevate their privileges.
https://notcve.org/view.php?id=CVE-2021-0245
A Use of Hard-coded Credentials vulnerability in Juniper Networks Junos OS on Junos Fusion satellite devices allows an attacker who is local to the device to elevate their privileges and take control of the device. This issue affects: Juniper Networks Junos OS Junos Fusion Satellite Devices. 16.1 versions prior to 16.1R7-S7; 17.1 versions prior to 17.1R2-S12, 17.1R3-S2; 17.2 versions prior to 17.2R3-S4; 17.3 versions prior to 17.3R3-S8; 17.4 versions prior to 17.4R2-S10; 17.4 version 17.4R3 and later versions; 18.1 versions prior to 18.1R3-S10; 18.2 versions prior to 18.2R2-S7, 18.2R3-S3; 18.3 versions prior to 18.3R1-S7, 18.3R2-S4, 18.3R3-S2; 18.4 versions prior to 18.4R1-S6, 18.4R2-S4, 18.4R3-S1; 19.1 versions prior to 19.1R1-S5, 19.1R2-S1, 19.1R3; 19.2 versions prior to 19.2R1-S4, 19.2R2; 19.3 versions prior to 19.3R2-S5, 19.3R3; 19.4 versions prior to 19.4R1-S1, 19.4R2; 20.1 versions prior to 20.1R1-S1, 20.1R2. This issue does not affected Junos OS releases prior to 16.1R1 or all 19.2R3 and 19.4R3 release versions. Una vulnerabilidad de Uso de Credenciales Embebidas en Juniper Networks Junos OS en dispositivos satelitales Junos Fusion, permite a un atacante que es local al dispositivo elevar sus privilegios y tomar el control del dispositivo. Este problema afecta a: Juniper Networks Junos OS Junos Fusion Satellite Devices versiones 16.1 anteriores a 16.1R7-S7; versiones 17.1 anteriores a 17.1R2-S12, 17.1R3-S2; versiones 17.2 anteriores a 17.2R3-S4; versiones 17.3 anteriores a 17.3R3-S8; versiones 17.4 anteriores a 17.4R2-S10; versiones 17.4, 17.4R3 y versiones posteriores; versiones 18.1 anteriores a 18.1R3-S10; versiones 18.2 anteriores a 18.2R2-S7, 18.2R3-S3; versiones 18.3 anteriores a 18.3R1-S7, 18.3R2-S4, 18.3R3-S2; versiones 18.4 anteriores a 18.4R1-S6, 18.4R2-S4, 18.4R3-S1;  versiones 19.1anteriores a 19.1R1-S5, 19.1R2-S1, 19.1R3; 19.2 versiones anteriores a 19.2R1-S4, 19.2R2; versiones 19.3 anteriores a 19.3R2-S5, 19.3R3; versiones 19. • https://kb.juniper.net/JSA11138 • CWE-798: Use of Hard-coded Credentials •