CVE-2020-8707

Vulnerability

A buffer overflow vulnerability exists in the daemon (likely the baseboard management controller/BMC firmware) of certain Intel Server Boards, Server Systems, and Compute Modules. The flaw affects firmware versions prior to 1.59 [1]. The overflow can be triggered by an unauthenticated attacker via adjacent network access, meaning the attacker must be on the same Layer 2 network segment as the target [1].

Exploitation

An attacker needs adjacent network access to the affected server device. No authentication is required [1]. The exploit likely involves sending a crafted network packet or sequence of packets to the daemon's listening service. The buffer overflow condition occurs when input data exceeds the allocated buffer size, allowing the attacker to overwrite adjacent memory regions [1].

Impact

Successful exploitation enables an unauthenticated adjacent attacker to achieve escalation of privilege on the target system [1]. This likely grants the attacker administrative or supervisory control over the baseboard management controller or server firmware, potentially allowing arbitrary code execution, configuration changes, or disruption of system management functions.

Mitigation

Intel has released firmware version 1.59 to address this issue [1]. Organizations should update affected Intel Server Boards, Server Systems, and Compute Modules to firmware version 1.59 or later [1]. No workarounds have been published; updates should be obtained from the Intel support site. This CVE is not listed on CISA's Known Exploited Vulnerabilities (KEV) catalog as of the publication date.