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CVSS: 7.5EPSS: 0%CPEs: 207EXPL: 0

CVE-2021-0282 – Junos OS: RPD crash while processing a specific BGP UPDATE when Multipath or add-path features are enabled

https://notcve.org/view.php?id=CVE-2021-0282

On Juniper Networks Junos OS devices with Multipath or add-path feature enabled, processing a specific BGP UPDATE can lead to a routing process daemon (RPD) crash and restart, causing a Denial of Service (DoS). Continued receipt and processing of this UPDATE message will create a sustained Denial of Service (DoS) condition. This BGP UPDATE message can propagate to other BGP peers with vulnerable Junos versions on which Multipath or add-path feature is enabled, and cause RPD to crash and restart. This issue affects both IBGP and EBGP deployments in IPv4 or IPv6 network. Junos OS devices that do not have the BGP Multipath or add-path feature enabled are not affected by this issue. • https://kb.juniper.net/JSA11186 • CWE-754: Improper Check for Unusual or Exceptional Conditions •

CVSS: 8.8EPSS: 0%CPEs: 263EXPL: 0

CVE-2021-0277 – Junos OS and Junos OS Evolved: LLDP Out-of-Bounds Read vulnerability in l2cpd

https://notcve.org/view.php?id=CVE-2021-0277

An Out-of-bounds Read vulnerability in the processing of specially crafted LLDP frames by the Layer 2 Control Protocol Daemon (l2cpd) of Juniper Networks Junos OS and Junos OS Evolved may allow an attacker to cause a Denial of Service (DoS), or may lead to remote code execution (RCE). Continued receipt and processing of these frames, sent from the local broadcast domain, will repeatedly crash the l2cpd process and sustain the Denial of Service (DoS) condition. This issue affects: Juniper Networks Junos OS: 12.3 versions prior to 12.3R12-S18; 15.1 versions prior to 15.1R7-S9; 17.3 versions prior to 17.3R3-S12; 17.4 versions prior to 17.4R2-S13, 17.4R3-S5; 18.1 versions prior to 18.1R3-S13; 18.2 versions prior to 18.2R3-S8; 18.3 versions prior to 18.3R3-S5; 18.4 versions prior to 18.4R2-S8, 18.4R3-S8; 19.1 versions prior to 19.1R3-S5; 19.2 versions prior to 19.2R3-S3; 19.3 versions prior to 19.3R2-S6, 19.3R3-S2; 19.4 versions prior to 19.4R1-S4, 19.4R2-S4, 19.4R3-S3; 20.1 versions prior to 20.1R2-S2, 20.1R3; 20.2 versions prior to 20.2R3-S1; 20.3 versions prior to 20.3R2-S1, 20.3R3; 20.4 versions prior to 20.4R2. Juniper Networks Junos OS Evolved versions prior to 20.4R2-EVO. Una vulnerabilidad de Lectura Fuera de Límites en el procesamiento de tramas LLDP especialmente diseñadas por el Protocolo de Control de Capa 2 del Daemon (l2cpd) de Juniper Networks Junos OS y Junos OS Evolved puede permitir a un atacante causar una Denegación de Servicio (DoS), o puede conllevar a la ejecución de código remota (RCE). • https://kb.juniper.net/JSA11181 • CWE-125: Out-of-bounds Read •

CVSS: 9.3EPSS: 0%CPEs: 319EXPL: 0

CVE-2021-0275 – Junos OS: J-Web: Cross-site scripting attack allows an attacker to gain control of another users session.

https://notcve.org/view.php?id=CVE-2021-0275

A Cross-site Scripting (XSS) vulnerability in J-Web on Juniper Networks Junos OS allows an attacker to target another user's session thereby gaining access to the users session. The other user session must be active for the attack to succeed. Once successful, the attacker has the same privileges as the user. If the user has root privileges, the attacker may be able to gain full control of the device. This issue affects: Juniper Networks Junos OS: 12.3 versions prior to 12.3R12-S15 on EX Series; 12.3X48 versions prior to 12.3X48-D95 on SRX Series; 15.1 versions prior to 15.1R7-S6 on EX Series; 15.1X49 versions prior to 15.1X49-D200 on SRX Series; 16.1 versions prior to 16.1R7-S7; 16.2 versions prior to 16.2R2-S11, 16.2R3; 17.1 versions prior to 17.1R2-S11, 17.1R3-S2; 17.2 versions prior to 17.2R3-S3; 17.3 versions prior to 17.3R2-S5, 17.3R3-S7; 17.4 versions prior to 17.4R2-S9, 17.4R3; 18.1 versions prior to 18.1R3-S9; 18.2 versions prior to 18.2R2-S7, 18.2R3-S3; 18.3 versions prior to 18.3R1-S7, 18.3R2-S3, 18.3R3-S1; 18.4 versions prior to 18.4R1-S6, 18.4R2-S4, 18.4R3; 19.1 versions prior to 19.1R2-S1, 19.1R3; 19.2 versions prior to 19.2R1-S3, 19.2R2; 19.3 versions prior to 19.3R2. • https://kb.juniper.net/JSA11166 • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') •

CVSS: 6.5EPSS: 0%CPEs: 81EXPL: 0

CVE-2021-0271 – Junos OS: EX2200-C Series, EX3200 Series, EX3300 Series, EX4200 Series, EX4500 Series, EX4550 Series, EX6210 Series, EX8208 Series, EX8216 Series: Receipt of a crafted ARP packet by an adjacent attacker will cause the sfid process to core.

https://notcve.org/view.php?id=CVE-2021-0271

A Double Free vulnerability in the software forwarding interface daemon (sfid) process of Juniper Networks Junos OS allows an adjacently-connected attacker to cause a Denial of Service (DoS) by sending a crafted ARP packet to the device. Continued receipt and processing of the crafted ARP packets will create a sustained Denial of Service (DoS) condition. This issue affects: Juniper Networks Junos OS on EX2200-C Series, EX3200 Series, EX3300 Series, EX4200 Series, EX4500 Series, EX4550 Series, EX6210 Series, EX8208 Series, EX8216 Series. 12.3 versions prior to 12.3R12-S17; 15.1 versions prior to 15.1R7-S8. This issue only affects the listed Marvell-chipset based EX Series devices. No other products or platforms are affected. • https://kb.juniper.net/JSA11162 • CWE-415: Double Free •

CVSS: 7.5EPSS: 0%CPEs: 324EXPL: 0

CVE-2021-0261 – Junos OS: Denial of Service vulnerability in J-Web and web based (HTTP/HTTPS) services caused by a high number of specific requests

https://notcve.org/view.php?id=CVE-2021-0261

A vulnerability in the HTTP/HTTPS service used by J-Web, Web Authentication, Dynamic-VPN (DVPN), Firewall Authentication Pass-Through with Web-Redirect, and Captive Portal allows an unauthenticated attacker to cause an extended Denial of Service (DoS) for these services by sending a high number of specific requests. This issue affects: Juniper Networks Junos OS 12.3 versions prior to 12.3R12-S17 on EX Series; 12.3X48 versions prior to 12.3X48-D105 on SRX Series; 15.1 versions prior to 15.1R7-S8; 15.1X49 versions prior to 15.1X49-D230 on SRX Series; 16.1 versions prior to 16.1R7-S8; 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-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, 19.2R3; 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; 20.2 versions prior to 20.2R1-S1, 20.2R2. Una vulnerabilidad en el servicio HTTP/HTTPS utilizado por -Web, Web Authentication, Dynamic-VPN (DVPN), Firewall Authentication Pass-Through con Web-Redirect, y Captive Portal, permite a un atacante no autenticado causar una Denegación de Servicio extendida (DoS) para estos servicios mediante el envío de un gran número de peticiones específicas. Este problema afecta a: Juniper Networks Junos OS versiones 12.3 anteriores a 12.3R12-S17 en la serie EX; Versiones de 12.3X48 anteriores a 12.3X48-D105 en la serie SRX; versiones 15.1 anteriores a 15.1R7-S8; Versiones de 15.1X49 anteriores a 15.1X49-D230 en la serie SRX; versiones 16.1 anteriores a 16.1R7-S8; 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-S3; versiones 18.4 anteriores a 18.4R2-S5, 18.4R3-S4; versiones 19.1 anteriores a 19.1R2-S2, 19.1R3-S2; versiones 19. 2 anteriores a 19.2R1-S5, 19.2R3; versiones 19.3 anteriores a 19.3R2-S4, 19.3R3; versiones 19.4 anteriores a 19.4R1-S3, 19.4R2-S2, 19.4R3; versiones 20.1 anteriores a 20.1R1-S3, 20.1R2; Versiones 20.2 anteriores a 20.2R1-S1, 20.2R2 • https://kb.juniper.net/JSA11152 • CWE-125: Out-of-bounds Read CWE-770: Allocation of Resources Without Limits or Throttling •