A vulnerability in the web server authentication of Cisco IOS XE Software could allow an authenticated, remote attacker to crash the web server on the device. The vulnerability is due to insufficient input validation during authentication. An attacker could exploit this vulnerability by entering unexpected characters during a valid authentication. A successful exploit could allow the attacker to crash the web server on the device, which must be manually recovered by disabling and re-enabling the web server. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

A vulnerability in the web server authentication of Cisco IOS XE Software could allow an authenticated, remote attacker to crash the web server on the device. The vulnerability is due to insufficient input validation during authentication. An attacker could exploit this vulnerability by entering unexpected characters during a valid authentication. A successful exploit could allow the attacker to crash the web server on the device, which must be manually recovered by disabling and re-enabling the web server.

A vulnerability in the web server authentication of Cisco IOS XE Software could allow an authenticated, remote attacker to crash the web server on the device. The vulnerability is due to insufficient input validation during authentication. An attacker could exploit this vulnerability by entering unexpected characters during a valid authentication. A successful exploit could allow the attacker to crash the web server on the device, which must be manually recovered by disabling and re-enabling the web server.

The administrator graphical user interface (GUI) lacks correct handling of RBAC, which may allow a malicious user to send modified HTTP requests to the targeted device. If exploited, a read-only remote attacker could potentially execute commands or configuration changes as the administrator. Due to insufficient validation of user input, this vulnerability could allow a malicious user to inject custom input into the web user interface. If exploited, a remote attacker could potentially execute arbitrary code with administrative privileges on the operating system. A vulnerability in the DNS application layer gateway (ALG) functionality used by Network Address Translation (NAT) in Cisco IOS XE software could allow an unauthenticated, remote attacker to reload an affected device. A vulnerability in the Secure Shell (SSH) server code of Cisco IOS software and Cisco IOS XE software could allow an authenticated, remote attacker to reload an affected device. Due to improper input sanitization, this vulnerability could allow a malicious user with administrative privileges to submit specially crafted input in the web user interface. If exploited, a remote attacker could potentially execute arbitrary commands with root privileges on the operating system. Due to improper validation of user supplied input, a malicious user could potentially create a file on the target device and upload a second malicious file to the device. If exploited, a user could execute arbitrary code with root privi…