CVSS: 4.3EPSS: 0%CPEs: 93EXPL: 0CVE-2024-20319
https://notcve.org/view.php?id=CVE-2024-20319
A vulnerability in the UDP forwarding code of Cisco IOS XR Software could allow an unauthenticated, adjacent attacker to bypass configured management plane protection policies and access the Simple Network Management Plane (SNMP) server of an affected device. This vulnerability is due to incorrect UDP forwarding programming when using SNMP with management plane protection. An attacker could exploit this vulnerability by attempting to perform an SNMP operation using broadcast as the destination address that could be processed by an affected device that is configured with an SNMP server. A successful exploit could allow the attacker to communicate to the device on the configured SNMP ports. Although an unauthenticated attacker could send UDP datagrams to the configured SNMP port, only an authenticated user can retrieve or modify data using SNMP requests. Una vulnerabilidad en el código de reenvío UDP del software Cisco IOS XR podría permitir que un atacante adyacente no autenticado omita las políticas de protección del plano de administración configuradas y acceda al servidor del Plano simple de administración de red (SNMP) de un dispositivo afectado. • https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-snmp-uhv6ZDeF • CWE-284: Improper Access Control •
CVSS: 6.5EPSS: 0%CPEs: 82EXPL: 0CVE-2024-20262
https://notcve.org/view.php?id=CVE-2024-20262
A vulnerability in the Secure Copy Protocol (SCP) and SFTP feature of Cisco IOS XR Software could allow an authenticated, local attacker to create or overwrite files in a system directory, which could lead to a denial of service (DoS) condition. The attacker would require valid user credentials to perform this attack. This vulnerability is due to a lack of proper validation of SCP and SFTP CLI input parameters. An attacker could exploit this vulnerability by authenticating to the device and issuing SCP or SFTP CLI commands with specific parameters. A successful exploit could allow the attacker to impact the functionality of the device, which could lead to a DoS condition. The device may need to be manually rebooted to recover. Note: This vulnerability is exploitable only when a local user invokes SCP or SFTP commands at the Cisco IOS XR CLI. • https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxr-scp-dos-kb6sUUHw • CWE-269: Improper Privilege Management •
CVSS: 5.3EPSS: 0%CPEs: 91EXPL: 0CVE-2024-20266
https://notcve.org/view.php?id=CVE-2024-20266
A vulnerability in the DHCP version 4 (DHCPv4) server feature of Cisco IOS XR Software could allow an unauthenticated, remote attacker to trigger a crash of the dhcpd process, resulting in a denial of service (DoS) condition. This vulnerability exists because certain DHCPv4 messages are improperly validated when they are processed by an affected device. An attacker could exploit this vulnerability by sending a malformed DHCPv4 message to an affected device. A successful exploit could allow the attacker to cause a crash of the dhcpd process. While the dhcpd process is restarting, which may take approximately two minutes, DHCPv4 server services are unavailable on the affected device. This could temporarily prevent network access to clients that join the network during that time period and rely on the DHCPv4 server of the affected device. Notes: Only the dhcpd process crashes and eventually restarts automatically. • https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxr-dhcp-dos-3tgPKRdm • CWE-476: NULL Pointer Dereference •
CVSS: 7.4EPSS: 0%CPEs: 61EXPL: 0CVE-2024-20327
https://notcve.org/view.php?id=CVE-2024-20327
A vulnerability in the PPP over Ethernet (PPPoE) termination feature of Cisco IOS XR Software for Cisco ASR 9000 Series Aggregation Services Routers could allow an unauthenticated, adjacent attacker to crash the ppp_ma process, resulting in a denial of service (DoS) condition. This vulnerability is due to the improper handling of malformed PPPoE packets that are received on a router that is running Broadband Network Gateway (BNG) functionality with PPPoE termination on a Lightspeed-based or Lightspeed-Plus-based line card. An attacker could exploit this vulnerability by sending a crafted PPPoE packet to an affected line card interface that does not terminate PPPoE. A successful exploit could allow the attacker to crash the ppp_ma process, resulting in a DoS condition for PPPoE traffic across the router. Una vulnerabilidad en la función de terminación de PPP sobre Ethernet (PPPoE) del software Cisco IOS XR para los enrutadores de servicios de agregación Cisco ASR serie 9000 podría permitir que un atacante adyacente no autenticado bloquee el proceso ppp_ma, lo que resultaría en una condición de denegación de servicio (DoS). Esta vulnerabilidad se debe al manejo inadecuado de paquetes PPPoE con formato incorrecto que se reciben en un enrutador que ejecuta la funcionalidad Broadband Network Gateway (BNG) con terminación PPPoE en una tarjeta de línea basada en Lightspeed o Lightspeed-Plus. • https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxr-pppma-JKWFgneW • CWE-20: Improper Input Validation •