Описание
A vulnerability in Server Name Identification (SNI) request filtering of Cisco Web Security Appliance (WSA), Cisco Firepower Threat Defense (FTD), and the Snort detection engine could allow an unauthenticated, remote attacker to bypass filtering technology on an affected device and exfiltrate data from a compromised host. This vulnerability is due to inadequate filtering of the SSL handshake. An attacker could exploit this vulnerability by using data from the SSL client hello packet to communicate with an external server. A successful exploit could allow the attacker to execute a command-and-control attack on a compromised host and perform additional data exfiltration attacks.
Ссылки
- PatchVendor Advisory
- PatchVendor Advisory
Уязвимые конфигурации
Одно из
EPSS
5.8 Medium
CVSS3
8.6 High
CVSS3
5 Medium
CVSS2
Дефекты
Связанные уязвимости
A vulnerability in Server Name Identification (SNI) request filtering of Cisco Web Security Appliance (WSA), Cisco Firepower Threat Defense (FTD), and the Snort detection engine could allow an unauthenticated, remote attacker to bypass filtering technology on an affected device and exfiltrate data from a compromised host. This vulnerability is due to inadequate filtering of the SSL handshake. An attacker could exploit this vulnerability by using data from the SSL client hello packet to communicate with an external server. A successful exploit could allow the attacker to execute a command-and-control attack on a compromised host and perform additional data exfiltration attacks.
A vulnerability in Server Name Identification (SNI) request filtering ...
A vulnerability in Server Name Identification (SNI) request filtering of Cisco Web Security Appliance (WSA), Cisco Firepower Threat Defense (FTD), and the Snort detection engine could allow an unauthenticated, remote attacker to bypass filtering technology on an affected device and exfiltrate data from a compromised host. This vulnerability is due to inadequate filtering of the SSL handshake. An attacker could exploit this vulnerability by using data from the SSL client hello packet to communicate with an external server. A successful exploit could allow the attacker to execute a command-and-control attack on a compromised host and perform additional data exfiltration attacks.
Уязвимость компонента Server Name Identification (SNI) интернет-шлюза Cisco Web Security Appliance, микропрограммного обеспечения межсетевых экранов Cisco Firepower Threat Defense, системы обнаружения вторжений Snort, позволяющая нарушителю получить полный контроль над скомпрометированным хостом и получить несанкционированный доступ к защищаемой информации
EPSS
5.8 Medium
CVSS3
8.6 High
CVSS3
5 Medium
CVSS2