Описание
A vulnerability in the Virtual Shell (VSH) session management for Cisco NX-OS Software could allow an authenticated, remote attacker to cause a VSH process to fail to delete upon termination. This can lead to a build-up of VSH processes that overtime can deplete system memory. When there is no system memory available, this can cause unexpected system behaviors and crashes. The vulnerability is due to the VSH process not being properly deleted when a remote management connection to the device is disconnected. An attacker could exploit this vulnerability by repeatedly performing a remote management connection to the device and terminating the connection in an unexpected manner. A successful exploit could allow the attacker to cause the VSH processes to fail to delete, which can lead to a system-wide denial of service (DoS) condition. The attacker must have valid user credentials to log in to the device using the remote management connection.
Уязвимые конфигурации
Одновременно
Одно из
Одно из
Одновременно
Одно из
Одновременно
Одно из
Одно из
Одновременно
Одно из
Одно из
Одновременно
Одно из
Одно из
Одновременно
Одно из
Одно из
Одновременно
Одно из
Одно из
EPSS
7.7 High
CVSS3
7.7 High
CVSS3
4 Medium
CVSS2
Дефекты
Связанные уязвимости
A vulnerability in the Virtual Shell (VSH) session management for Cisco NX-OS Software could allow an authenticated, remote attacker to cause a VSH process to fail to delete upon termination. This can lead to a build-up of VSH processes that overtime can deplete system memory. When there is no system memory available, this can cause unexpected system behaviors and crashes. The vulnerability is due to the VSH process not being properly deleted when a remote management connection to the device is disconnected. An attacker could exploit this vulnerability by repeatedly performing a remote management connection to the device and terminating the connection in an unexpected manner. A successful exploit could allow the attacker to cause the VSH processes to fail to delete, which can lead to a system-wide denial of service (DoS) condition. The attacker must have valid user credentials to log in to the device using the remote management connection.
Уязвимость службы Virtual Shell (VSH) сетевой операционной системы NX-OS, позволяющая нарушителю вызвать отказ в обслуживании или вызвать аварийное завершение работы приложения
EPSS
7.7 High
CVSS3
7.7 High
CVSS3
4 Medium
CVSS2