CVSS: 9.1EPSS: 4%CPEs: 491EXPL: 0CVE-2023-20269 – Cisco Adaptive Security Appliance and Firepower Threat Defense Unauthorized Access Vulnerability
https://notcve.org/view.php?id=CVE-2023-20269
A vulnerability in the remote access VPN feature of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to conduct a brute force attack in an attempt to identify valid username and password combinations or an authenticated, remote attacker to establish a clientless SSL VPN session with an unauthorized user. This vulnerability is due to improper separation of authentication, authorization, and accounting (AAA) between the remote access VPN feature and the HTTPS management and site-to-site VPN features. An attacker could exploit this vulnerability by specifying a default connection profile/tunnel group while conducting a brute force attack or while establishing a clientless SSL VPN session using valid credentials. A successful exploit could allow the attacker to achieve one or both of the following: Identify valid credentials that could then be used to establish an unauthorized remote access VPN session. Establish a clientless SSL VPN session (only when running Cisco ASA Software Release 9.16 or earlier). Notes: Establishing a client-based remote access VPN tunnel is not possible as these default connection profiles/tunnel groups do not and cannot have an IP address pool configured. • https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-ravpn-auth-8LyfCkeC • CWE-288: Authentication Bypass Using an Alternate Path or Channel CWE-863: Incorrect Authorization •
CVSS: 7.5EPSS: 0%CPEs: 7EXPL: 0CVE-2023-20107 – Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Low-Entropy Keys Vulnerability
https://notcve.org/view.php?id=CVE-2023-20107
A vulnerability in the deterministic random bit generator (DRBG), also known as pseudorandom number generator (PRNG), in Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software for Cisco ASA 5506-X, ASA 5508-X, and ASA 5516-X Firewalls could allow an unauthenticated, remote attacker to cause a cryptographic collision, enabling the attacker to discover the private key of an affected device. This vulnerability is due to insufficient entropy in the DRBG for the affected hardware platforms when generating cryptographic keys. An attacker could exploit this vulnerability by generating a large number of cryptographic keys on an affected device and looking for collisions with target devices. A successful exploit could allow the attacker to impersonate an affected target device or to decrypt traffic secured by an affected key that is sent to or from an affected target device. • https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asa5500x-entropy-6v9bHVYP • CWE-331: Insufficient Entropy CWE-332: Insufficient Entropy in PRNG •
CVSS: 5.8EPSS: 0%CPEs: 305EXPL: 0CVE-2022-20928
https://notcve.org/view.php?id=CVE-2022-20928
A vulnerability in the authentication and authorization flows for VPN connections in Cisco Adaptive Security Appliance (ASA) Software and Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to establish a connection as a different user. This vulnerability is due to a flaw in the authorization verifications during the VPN authentication flow. An attacker could exploit this vulnerability by sending a crafted packet during a VPN authentication. The attacker must have valid credentials to establish a VPN connection. A successful exploit could allow the attacker to establish a VPN connection with access privileges from a different user. Una vulnerabilidad en los flujos de autenticación y autorización para conexiones VPN en el software Cisco Adaptive Security Appliance (ASA) y el software Firepower Threat Defense (FTD) podría permitir que un atacante remoto no autenticado establezca una conexión como un usuario diferente. • https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asa-ftd-vp-authz-N2GckjN6 • CWE-863: Incorrect Authorization •
CVSS: 7.7EPSS: 0%CPEs: 65EXPL: 0CVE-2022-20924
https://notcve.org/view.php?id=CVE-2022-20924
A vulnerability in the Simple Network Management Protocol (SNMP) feature of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by sending a crafted SNMP request to an affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition. Una vulnerabilidad en la función del Protocolo Simple de Administración de Red (SNMP) del software Cisco Adaptive Security Appliance (ASA) y del software Cisco Firepower Threat Defense (FTD) podría permitir que un atacante remoto autenticado provoque una condición de Denegación de Servicio (DoS) en el dispositivo afectado. Esta vulnerabilidad se debe a una validación de entrada insuficiente. • https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-snmp-dos-qsqBNM6x • CWE-20: Improper Input Validation CWE-703: Improper Check or Handling of Exceptional Conditions •
CVSS: 8.6EPSS: 0%CPEs: 293EXPL: 0CVE-2022-20947
https://notcve.org/view.php?id=CVE-2022-20947
A vulnerability in dynamic access policies (DAP) functionality of Cisco Adaptive Security Appliance (ASA) Software and Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. This vulnerability is due to improper processing of HostScan data received from the Posture (HostScan) module. An attacker could exploit this vulnerability by sending crafted HostScan data to an affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition. https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asa-ftd-dap-dos-GhYZBxDU ["https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asa-ftd-dap-dos-GhYZBxDU"] This advisory is part of the November 2022 release of the Cisco ASA, FTD, and FMC Security Advisory Bundled publication. Una vulnerabilidad en la funcionalidad de las políticas de acceso dinámico (DAP) del software Cisco Adaptive Security Appliance (ASA) y del software Firepower Threat Defense (FTD) podría permitir que un atacante remoto no autenticado provoque que un dispositivo afectado se recargue, lo que resultaría en una condición de Denegación de Servicio (DoS). • https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asa-ftd-dap-dos-GhYZBxDU • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •