CVSS: 7.5EPSS: 0%CPEs: 130EXPL: 0CVE-2020-1672 – Junos OS: jdhcpd process crash when processing a specific DHCPDv6 packet in DHCPv6 relay configuration.
https://notcve.org/view.php?id=CVE-2020-1672
On Juniper Networks Junos OS devices configured with DHCPv6 relay enabled, receipt of a specific DHCPv6 packet might crash the jdhcpd daemon. The jdhcpd daemon automatically restarts without intervention, but continuous receipt of specific crafted DHCP messages will repeatedly crash jdhcpd, leading to an extended Denial of Service (DoS) condition. Only DHCPv6 packet can trigger this issue. DHCPv4 packet cannot trigger this issue. This issue affects Juniper Networks Junos OS: 17.3 versions prior to 17.3R3-S9; 17.4 versions prior to 17.4R2-S11, 17.4R3-S2, 17.4R3-S3; 18.1 versions prior to 18.1R3-S11; 18.2 versions prior to 18.2R3-S5; 18.3 versions prior to 18.3R2-S4, 18.3R3-S3; 18.4 versions prior to 18.4R2-S5, 18.4R3-S4; 19.1 versions prior to 19.1R2-S2, 19.1R3-S2; 19.2 versions prior to 19.2R1-S5, 19.2R2-S1, 19.2R3; 19.3 versions prior to 19.3R2-S4, 19.3R2-S4, 19.3R3; 19.4 versions prior to 19.4R1-S3, 19.4R2-S1, 19.4R3; 20.1 versions prior to 20.1R1-S3, 20.1R2. • https://kb.juniper.net/JSA11069 • CWE-20: Improper Input Validation •
CVSS: 7.5EPSS: 0%CPEs: 125EXPL: 0CVE-2020-1671 – Junos OS: Receipt of malformed DHCPv6 packets causes jdhcpd to crash.
https://notcve.org/view.php?id=CVE-2020-1671
On Juniper Networks Junos OS platforms configured as DHCPv6 local server or DHCPv6 Relay Agent, Juniper Networks Dynamic Host Configuration Protocol Daemon (JDHCPD) process might crash with a core dump if a malformed DHCPv6 packet is received, resulting with the restart of the daemon. This issue only affects DHCPv6, it does not affect DHCPv4. This issue affects: Juniper Networks Junos OS 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; 18.2X75 versions prior to 18.2X75-D65; 18.3 versions prior to 18.3R2-S4, 18.3R3-S3; 18.4 versions prior to 18.4R2-S5, 18.4R3-S4; 19.1 versions prior to 19.1R3-S2; 19.2 versions prior to 19.2R1-S5, 19.2R3; 19.2 version 19.2R2 and later versions; 19.3 versions prior to 19.3R2-S4, 19.3R3; 19.4 versions prior to 19.4R1-S3, 19.4R2-S2, 19.4R3; 20.1 versions prior to 20.1R1-S3, 20.1R2; This issue does not affect Juniper Networks Junos OS prior to 17.4R1. En las plataformas Juniper Networks Junos OS configuradas como servidor local DHCPv6 o DHCPv6 Relay Agent, el proceso Juniper Networks Dynamic Host Configuration Protocol Daemon (JDHCPD) puede bloquearse con un volcado del núcleo si un paquete DHCPv6 malformado es recibido, resultando en el reinicio del demonio. Este problema solo afecta a DHCPv6, no afecta a DHCPv4. • https://kb.juniper.net/JSA11068 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-125: Out-of-bounds Read •
CVSS: 6.5EPSS: 0%CPEs: 121EXPL: 0CVE-2020-1670 – Junos OS: EX4300 Series: High CPU load due to receipt of specific IPv4 packets
https://notcve.org/view.php?id=CVE-2020-1670
On Juniper Networks EX4300 Series, receipt of a stream of specific IPv4 packets can cause Routing Engine (RE) high CPU load, which could lead to network protocol operation issue and traffic interruption. This specific packets can originate only from within the broadcast domain where the device is connected. This issue occurs when the packets enter to the IRB interface. Only IPv4 packets can trigger this issue. IPv6 packets cannot trigger this issue. • https://kb.juniper.net https://kb.juniper.net/InfoCenter/index?page=content&id=JSA11067&actp=SUBSCRIPTION • CWE-400: Uncontrolled Resource Consumption •
CVSS: 6.3EPSS: 0%CPEs: 9EXPL: 0CVE-2020-1669 – Junos OS: NFX350: Password hashes stored in world-readable format
https://notcve.org/view.php?id=CVE-2020-1669
The Juniper Device Manager (JDM) container, used by the disaggregated Junos OS architecture on Juniper Networks NFX350 Series devices, stores password hashes in the world-readable file /etc/passwd. This is not a security best current practice as it can allow an attacker with access to the local filesystem the ability to brute-force decrypt password hashes stored on the system. This issue affects Juniper Networks Junos OS on NFX350: 19.4 versions prior to 19.4R3; 20.1 versions prior to 20.1R1-S4, 20.1R2. El contenedor Juniper Device Manager (JDM), utilizado por la arquitectura de Junos OS desagregado en los dispositivos Juniper Networks NFX350 Series, almacena hashes de contraseña en el archivo /etc/passwd de tipo world-readable. Esta no es una de las mejores prácticas de seguridad actuales, ya que puede permitir a un atacante con acceso al sistema de archivos local la capacidad de descifrar por fuerza bruta los hashes de contraseña almacenados en el sistema. • https://kb.juniper.net/JSA11066 • CWE-256: Plaintext Storage of a Password CWE-522: Insufficiently Protected Credentials •
CVSS: 6.5EPSS: 0%CPEs: 93EXPL: 0CVE-2020-1668 – Junos OS: EX2300 Series: High CPU load due to receipt of specific multicast packets on layer 2 interface
https://notcve.org/view.php?id=CVE-2020-1668
On Juniper Networks EX2300 Series, receipt of a stream of specific multicast packets by the layer2 interface can cause high CPU load, which could lead to traffic interruption. This issue occurs when multicast packets are received by the layer 2 interface. To check if the device has high CPU load due to this issue, the administrator can issue the following command: user@host> show chassis routing-engine Routing Engine status: ... Idle 2 percent the "Idle" value shows as low (2 % in the example above), and also the following command: user@host> show system processes summary ... PID USERNAME PRI NICE SIZE RES STATE TIME WCPU COMMAND 11639 root 52 0 283M 11296K select 12:15 44.97% eventd 11803 root 81 0 719M 239M RUN 251:12 31.98% fxpc{fxpc} the eventd and the fxpc processes might use higher WCPU percentage (respectively 44.97% and 31.98% in the above example). • https://kb.juniper.net/JSA11065 • CWE-400: Uncontrolled Resource Consumption •