cisco-sa-20180502-acs1: Cisco Secure Access Control System Remote Code Execution Vulnerability

Published May 2, 2018
·
Updated

A vulnerability in the ACS Report component of Cisco Secure Access Control System (ACS) could allow an unauthenticated, remote attacker to execute arbitrary commands on an affected system. Commands executed by the attacker are processed at the targeted user's privilege level. The vulnerability is due to insufficient validation of the Action Message Format (AMF) protocol. An attacker could exploit this vulnerability by sending a crafted AMF message that contains malicious code to a targeted user. A successful exploit could allow the attacker to execute arbitrary commands on the ACS device. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. This advisory is available at the following link: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180502-acs1

Credit

security researchers Mikhail Klyuchnikov(Positive Technologies for finding), Yury Aleynov(Positive Technologies for finding), reporting this vulnerability.

Affected Software

1 affected component
Cisco Secure Access Control System

Event History

May 2, 2018
Advisory Published
04:00 PM
Data Sourced
04:00 PM
DescriptionSeverityWeaknessAffected Software

Child vulnerabilities

Contains the following vulnerabilities.

Frequently Asked Questions

1

What is the severity of cisco-sa-20180502-acs1?

The severity of cisco-sa-20180502-acs1 is classified as critical due to its potential for remote command execution.

2

How do I fix cisco-sa-20180502-acs1?

To fix cisco-sa-20180502-acs1, apply the latest security patches provided by Cisco for the Secure Access Control System.

3

Who is affected by cisco-sa-20180502-acs1?

Organizations using vulnerable versions of Cisco Secure Access Control System are at risk from cisco-sa-20180502-acs1.

4

What type of attacker can exploit cisco-sa-20180502-acs1?

An unauthenticated remote attacker can exploit cisco-sa-20180502-acs1 to execute arbitrary commands.

5

What are the potential impacts of cisco-sa-20180502-acs1?

The potential impacts of cisco-sa-20180502-acs1 include unauthorized access and command execution at the user's privilege level.

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203