CVE-2019-6260 Information

Description

The ASPEED ast2400 and ast2500 Baseband Management Controller (BMC) hardware and firmware implement Advanced High-performance Bus (AHB) bridges which allow arbitrary read and write access to the BMC’s physical address space from the host (or from the network in unusual cases where the BMC console uart is attached to a serial concentrator). This CVE applies to the specific cases of iLPC2AHB bridge Pt I iLPC2AHB bridge Pt II PCIe VGA P2A bridge DMA from/to arbitrary BMC memory via X-DMA UART-based SoC Debug interface LPC2AHB bridge PCIe BMC P2A bridge and Watchdog setup.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Reference

https://security.netapp.com/advisory/ntap-20190314-0001/ https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2019-785 https://www.flamingspork.com/blog/2019/01/23/cve-2019-6260:-gaining-control-of-bmc-from-the-host-processor/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8