CVE-2021-26733 | Nozomi Networks Labs

Summary

A broken access control vulnerability in the FirstReset_handler_func function of spx_restservice allows an attacker to arbitrarily send reboot commands to the BMC, causing a Denial-of-Service (DoS) condition.

Impact

An un-authenticated remote attacker would be able to arbitrarily send reboot commands to the BMC, making it inaccessible to users.

Issue Date

October 21, 2022

Affects

The vulnerability affects: Lanner Inc IAC-AST2500A standard firmware version 1.10.0

CVE Name

CVE-2021-26733

CVSS Details

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

CVSS Score

5.3

Solution

Updated BMC firmware versions that fix the issue are available from Lanner technical support

Mitigations

Acknowledgements

Andrea Palanca of Nozomi Networks

Nozomi Threat Intelligence

Nozomi Networks Labs curates threat and vulnerability insights that are continuously fed into the Nozomi Networks platform to ensure our sensors can detect existing and emerging threats and vulnerabilities that threaten customers environments.

Learn more