CVE-2018-0253: Input Validation
First published: Wed May 02 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. This vulnerability affects all releases of Cisco Secure ACS prior to Release 5.8 Patch 7. Cisco Bug IDs: CSCve69037.
Credit: ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco Secure Access Control System | <5.8 | |
| Cisco Secure Access Control System | =5.8 | |
| Cisco Secure Access Control System | =5.8-p1 | |
| Cisco Secure Access Control System | =5.8-p2 | |
| Cisco Secure Access Control System | =5.8-p3 | |
| Cisco Secure Access Control System | =5.8-p4 | |
| Cisco Secure Access Control System | =5.8-p6 | |
| Cisco Secure Access Control System | =5.8\(0.8\) |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2018-0253?
CVE-2018-0253 has been classified with a high severity level as it allows remote command execution.
How do I fix CVE-2018-0253?
To remediate CVE-2018-0253, update Cisco Secure Access Control System to version 5.8 or later.
What software is affected by CVE-2018-0253?
CVE-2018-0253 affects various versions of Cisco Secure Access Control System, specifically versions up to and including 5.8.
Can an attacker exploit CVE-2018-0253 without authentication?
Yes, CVE-2018-0253 can be exploited by unauthenticated remote attackers.
What kinds of commands can be executed through CVE-2018-0253?
An attacker can execute arbitrary commands at the privilege level of the targeted user due to CVE-2018-0253.
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- version/cisco secure access control system/5.8\(0.8\)