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CVSS: 5.3EPSS: 0%CPEs: 96EXPL: 0

A Time-of-check Time-of-use (TOCTOU) Race Condition vulnerability in telemetry processing of Juniper Networks Junos OS allows a network-based authenticated attacker to flood the system with multiple telemetry requests, causing the Junos Kernel Debugging Streaming Daemon (jkdsd) process to crash, leading to a Denial of Service (DoS). Continued receipt and processing of telemetry requests will repeatedly crash the jkdsd process and sustain the Denial of Service (DoS) condition. This issue is seen on all Junos platforms. The crash is triggered when multiple telemetry requests come from different collectors. As the load increases, the Dynamic Rendering Daemon (drend) decides to defer processing and continue later, which results in a timing issue accessing stale memory, causing the jkdsd process to crash and restart. Note: jkdsd is not shipped with SRX Series devices and therefore are not affected by this vulnerability. This issue affects: Juniper Networks Junos OS: * 20.4 versions prior to 20.4R3-S9; * 21.1 versions 21.1R1 and later; * 21.2 versions prior to 21.2R3-S6; * 21.3 versions prior to 21.3R3-S5; * 21.4 versions prior to 21.4R3-S5; * 22.1 versions prior to 22.1R3-S4; * 22.2 versions prior to 22.2R3-S2; * 22.3 versions prior to 22.3R2-S1, 22.3R3-S1; * 22.4 versions prior to 22.4R2-S2, 22.4R3; * 23.1 versions prior to 23.1R2. This issue does not affect Juniper Networks Junos OS versions prior to 19.4R1. Una vulnerabilidad de condición de ejecución de Tiempo de Verificación y Tiempo de Uso (TOCTOU) en el procesamiento de telemetría de Juniper Networks Junos OS permite que un atacante autenticado basado en red inunde el sistema con múltiples solicitudes de telemetría, lo que provoca que Junos Kernel Debugging Streaming Daemon (jkdsd ) falle el proceso, lo que provoca una Denegación de Servicio (DoS). • https://supportportal.juniper.net/JSA73152 • CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition •

CVSS: 7.5EPSS: 0%CPEs: 183EXPL: 0

An Improper Handling of Exceptional Conditions vulnerability in AS PATH processing of Juniper Networks Junos OS and Junos OS Evolved allows an attacker to send a BGP update message with an AS PATH containing a large number of 4-byte ASes, leading to a Denial of Service (DoS). Continued receipt and processing of these BGP updates will create a sustained Denial of Service (DoS) condition. This issue is hit when the router has Non-Stop Routing (NSR) enabled, has a non-4-byte-AS capable BGP neighbor, receives a BGP update message with a prefix that includes a long AS PATH containing large number of 4-byte ASes, and has to advertise the prefix towards the non-4-byte-AS capable BGP neighbor. Note: NSR is not supported on the SRX Series and is therefore not affected by this vulnerability. This issue affects: Juniper Networks Junos OS: * All versions prior to 20.4R3-S8; * 21.1 versions 21.1R1 and later; * 21.2 versions prior to 21.2R3-S6; * 21.3 versions prior to 21.3R3-S5; * 21.4 versions prior to 21.4R3-S5; * 22.1 versions prior to 22.1R3-S4; * 22.2 versions prior to 22.2R3-S2; * 22.3 versions prior to 22.3R2-S2, 22.3R3-S1; * 22.4 versions prior to 22.4R2-S1, 22.4R3. Juniper Networks Junos OS Evolved * All versions prior to 20.4R3-S8-EVO; * 21.1 versions 21.1R1-EVO and later; * 21.2 versions prior to 21.2R3-S6-EVO; * 21.3 versions prior to 21.3R3-S5-EVO; * 21.4 versions prior to 21.4R3-S5-EVO; * 22.1 versions prior to 22.1R3-S4-EVO; * 22.2 versions prior to 22.2R3-S2-EVO; * 22.3 versions prior to 22.3R2-S2-EVO, 22.3R3-S1-EVO; * 22.4 versions prior to 22.4R2-S1-EVO, 22.4R3-EVO. Una vulnerabilidad de Improper Handling of Exceptional Conditions en el procesamiento AS PATH de Juniper Networks Junos OS y Junos OS Evolved permite a un atacante enviar un mensaje de actualización de BGP con un AS PATH que contiene una gran cantidad de AS de 4 bytes, lo que lleva a una Denegación de Servicio ( DoS). La recepción y el procesamiento continuo de estas actualizaciones de BGP crearán una condición sostenida de Denegación de Servicio (DoS). Este problema se produce cuando el router tiene habilitado Non-Stop Routing (NSR), tiene un vecino BGP que no es de 4 bytes con capacidad AS, recibe un mensaje de actualización de BGP con un prefijo que incluye un AS PATH largo que contiene una gran cantidad de 4 bytes. • https://supportportal.juniper.net/JSA73150 • CWE-755: Improper Handling of Exceptional Conditions •

CVSS: 5.3EPSS: 0%CPEs: 153EXPL: 0

A Missing Authentication for Critical Function vulnerability in Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to cause limited impact to the file system integrity. With a specific request to webauth_operation.php that doesn't require authentication, an attacker is able to upload and download arbitrary files via J-Web, leading to a loss of integrity or confidentiality, which may allow chaining to other vulnerabilities. This issue affects Juniper Networks Junos OS on SRX Series: * 21.2 versions prior to 21.2R3-S8; * 21.4 versions prior to 21.4R3-S6; * 22.1 versions prior to 22.1R3-S5; * 22.2 versions prior to 22.2R3-S3; * 22.3 versions prior to 22.3R3-S2; * 22.4 versions prior to 22,4R2-S2, 22.4R3; * 23.2 versions prior to 23.2R1-S2, 23.2R2. Una vulnerabilidad de autenticación faltante para funciones críticas en Juniper Networks Junos OS en la serie SRX permite que un atacante basado en red no autenticado cause un impacto limitado en la integridad del sistema de archivos. Con una solicitud específica a webauth_operation.php que no requiere autenticación, un atacante puede cargar archivos arbitrarios a través de J-Web, lo que provoca una pérdida de integridad de una determinada parte del sistema de archivos, lo que puede permitir el encadenamiento a otras vulnerabilidades. . Este problema afecta a Juniper Networks Junos OS en la serie SRX: * Versiones 22.4 anteriores a 22,4R2-S2, 22.4R3; * Versiones 23.2 anteriores a 23.2R2. Juniper Junos OS on SRX Series contains a missing authentication for critical function vulnerability that allows an unauthenticated, network-based attacker to cause limited impact to the file system integrity. • https://supportportal.juniper.net/JSA72300 • CWE-306: Missing Authentication for Critical Function •

CVSS: 7.5EPSS: 0%CPEs: 2EXPL: 0

An Improper Input Validation vulnerability in the Routing Protocol Daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS). When certain specific crafted BGP UPDATE messages are received over an established BGP session, one BGP session may be torn down with an UPDATE message error, or the issue may propagate beyond the local system which will remain non-impacted, but may affect one or more remote systems. This issue is exploitable remotely as the crafted UPDATE message can propagate through unaffected systems and intermediate BGP speakers. Continuous receipt of the crafted BGP UPDATE messages will create a sustained Denial of Service (DoS) condition for impacted devices. This issue affects eBGP and iBGP, in both IPv4 and IPv6 implementations. This issue requires a remote attacker to have at least one established BGP session. • https://kb.juniper.net/JSA72510 https://www.juniper.net/documentation/us/en/software/junos/bgp/topics/topic-map/bgp-error-messages.html https://www.rfc-editor.org/rfc/rfc4271 https://www.rfc-editor.org/rfc/rfc7606 • CWE-20: Improper Input Validation •

CVSS: 5.3EPSS: 1%CPEs: 117EXPL: 2

A Missing Authentication for Critical Function vulnerability in Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to cause limited impact to the file system integrity. With a specific request to user.php that doesn't require authentication an attacker is able to upload arbitrary files via J-Web, leading to a loss of integrity for a certain  part of the file system, which may allow chaining to other vulnerabilities. This issue affects Juniper Networks Junos OS on SRX Series: * All versions prior to 20.4R3-S8; * 21.1 versions 21.1R1 and later; * 21.2 versions prior to 21.2R3-S6; * 21.3 versions prior to 21.3R3-S5; * 21.4 versions prior to 21.4R3-S5; * 22.1 versions prior to 22.1R3-S3; * 22.2 versions prior to 22.2R3-S2; * 22.3 versions prior to 22.3R2-S2, 22.3R3; * 22.4 versions prior to 22.4R2-S1, 22.4R3. A Missing Authentication for Critical Function vulnerability in Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to cause limited impact to the file system integrity. With a specific request to user.php that doesn't require authentication an attacker is able to upload arbitrary files via J-Web, leading to a loss of integrity for a certain part of the file system, which may allow chaining to other vulnerabilities. This issue affects Juniper Networks Junos OS on SRX Series: * All versions prior to 20.4R3-S8; * 21.1: versions 21.1R1 and later; * 21.2: versions prior to 21.2R3-S6; * 21.3: versions prior to 21.3R3-S5; * 21.4: versions prior to 21.4R3-S5; * 22.1: versions prior to 22.1R3-S3; * 22.2: versions prior to 22.2R3-S2; * 22.3: versions prior to 22.3R2-S2, 22.3R3; * 22.4: versions prior to 22.4R2-S1, 22.4R3. Juniper Junos OS on SRX Series contains a missing authentication for critical function vulnerability that allows an unauthenticated, network-based attacker to cause limited impact to the file system integrity. • https://github.com/watchtowrlabs/juniper-rce_cve-2023-36844?ref=labs.watchtowr.com https://github.com/Chocapikk/CVE-2023-36846 https://supportportal.juniper.net/JSA72300 • CWE-306: Missing Authentication for Critical Function •