spx_restservice First_network_func Broken Access Control<br>CVE-2021-26732

CVE-2021-26732

Summary

A broken access control vulnerability in the First_network_func function of spx_restservice allows an attacker to arbitrarily change the network configuration of the BMC..

Impact

An un-authenticated remote attacker would be able to arbitrarily change the network configuration of the BMC, e.g., change the DNS server or gateway address.

Issue Date

October 21, 2022

Affects

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

CVE Name

CVE-2021-26732

CVSS Details

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

CVSS Score

6.5

Solution

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

Mitigations

Acknowledgements

Andrea Palanca of Nozomi Networks

Threat Intelligence

Curated and maintained by Nozomi Networks Labs, the Threat Intelligence™ service provides threat and vulnerability updates to Guardian, making it easy for IT/OT professionals to stay on top of current OT and IoT risks.

Learn more
Threat Intel screenshot
Nozomi Logo circle

“Threat actors love finding new ways to attack critical infrastructure. We love finding new ways to detect their malware before damage occurs.”

Research Projects

TRITON

TRITON is the first known cyberattack that directly interacted with a Safety Instrumented System (SIS). Labs reverse engineered the TriStation suite of software and delivered a report and two free tools for security researchers. This research was presented at Black Hat USA 2018.

GreyEnergy

The Labs team reverse engineered the GreyEnergy malicious document (maldoc) that leads to the installation of the malware (backdoor) on a victim’s network. Project outcomes include a report, multiple blogs and two free tools for security researchers.

IEC 62351

IEC Working Group 15 (WG15) is developing technology standards for secure-by-design power systems. Labs contributes to the standards and has demonstrated how they can be used to identify hard-to-detect cyberattacks. Research from this effort was presented at Black Hat USA 2019.

See all

Take the next step.

Discover how easy it is to identify and respond to cyber threats by automating your IoT and OT asset discovery, inventory, and management.