CVSS: 7.1EPSS: 0%CPEs: 156EXPL: 0CVE-2021-0258 – Junos OS: Kernel panic upon receipt of specific TCPv6 packet on management interface
https://notcve.org/view.php?id=CVE-2021-0258
A vulnerability in the forwarding of transit TCPv6 packets received on the Ethernet management interface of Juniper Networks Junos OS allows an attacker to trigger a kernel panic, leading to a Denial of Service (DoS). Continued receipt and processing of these transit packets will create a sustained Denial of Service (DoS) condition. This issue only occurs when TCPv6 packets are routed through the management interface. Other transit traffic, and traffic destined to the management interface, are unaffected by this vulnerability. This issue was introduced as part of a TCP Parallelization feature added in Junos OS 17.2, and affects systems with concurrent network stack enabled. • https://kb.juniper.net/JSA11149 • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') •
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: 7.8EPSS: 0%CPEs: 169EXPL: 1CVE-2021-0253 – Junos OS: NFX Series: Local Command Execution Vulnerability in JDMD Leads to Privilege Escalation
https://notcve.org/view.php?id=CVE-2021-0253
NFX Series devices using Juniper Networks Junos OS are susceptible to a local command execution vulnerability thereby allowing an attacker to elevate their privileges via the Junos Device Management Daemon (JDMD) process. This issue affects Juniper Networks Junos OS on NFX Series 17.2 version 17.2R1 and later versions prior to 18.3R3-S4; 18.4 versions prior to 18.4R2-S5, 18.4R3-S5; 19.1 versions prior to 19.1R1-S3; 19.2 version 19.1R2 and later versions prior to 19.2R3; 19.3 versions prior to 19.3R3; 19.4 versions prior to 19.4R2-S2. 19.4 versions 19.4R3 and above. This issue does not affect Juniper Networks Junos OS versions prior to 17.2R1. This issue does not affect the JDMD as used by Junos Node Slicing such as External Servers use in conjunction with Junos Node Slicing and In-Chassis Junos Node Slicing on MX480, MX960, MX2008, MX2010, MX2020. Los dispositivos de la serie NFX que utilizan Juniper Networks Junos OS son susceptibles a una vulnerabilidad de ejecución de comandos locales, permitiendo a un atacante elevar sus privilegios por medio del proceso Junos Device Management Daemon (JDMD). • https://github.com/orangecertcc/security-research/security/advisories/GHSA-vrf9-cjcp-rwcr https://kb.juniper.net/JSA11146 • CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection') •
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 •