CVE-2023-30354

Shenzen Tenda Technology IP Camera CP3 V11.10.00.2211041355 does not defend against physical access to U-Boot via the UART: the Wi-Fi password is shown, and the hardcoded boot password can be inserted for console access...

CVE-2021-27952

Hardcoded default root credentials exist on the ecobee3 lite 4.5.81.200 device. This allows a threat actor to gain access to the password-protected bootloader environment through the serial console...

Diagnosing an unresponsive Citrix Hypervisor server

This article describes how to diagnose an unresponsive XenServer or Citrix Hypervisor server. If you cannot connect to your Citrix Hypervisor server from XenCenter or other orchestration tool, you can use the steps in this article to attempt to regain access to the unresponsive server and gather...

How to configure console access on XenServer or Citrix Hypervisor

This article is for customers running Citrix Hypervisor or XenServer who want to configure serial console access to their XenServer hosts. In some support cases, serial console access to the XenServer host is required for debug purposes. The serial connection is to use with HyperTerminal or simil...

How to Generate a Crashdump from an Unresponsive XenServer 7

This article describes how to generate a crashdump from an unresponsive XenServer 7. If XenServer crashes, the running kernel can migrate into a special memory area which is based on kexec functions that loads a special kernel without the need for a server cold restart. This new kernel attempts t...