spx_restservice KillDupUsr_func Broken Access Control - CVE-2021-44467

CVE-2021-44467

Summary

A broken access control vulnerability in the KillDupUsr_func function of spx_restservice allows an attacker to arbitrarily terminate active sessions of other users, causing a Denial-of-Service (DoS) condition, if an input parameter is correctly guessed.

Impact

An un-authenticated remote attacker would be able to arbitrarily terminate active sessions to the device of any other user, making it inaccessible.

Issue Date

October 21, 2022

Affects

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

CVE Name

CVE-2021-44467

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
Nozomi Networks Threat Intelligence dashboard showing pie charts of targeted industries, countries, and malware types, with detailed threat actor and vulnerability information below.

Latest Labs Blogs

Artificial Intelligence in Modern Cybersecurity: From Payloads to APT Ops

Read

Backdooring CODESYS Applications via Vulnerability Chaining

Read

Resurrecting a Silent Console: From U-Boot to Linux Shell

Read
View All

Take the next step.

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