CVE-2018-0248: Cisco Wireless LAN Controller Software GUI Configuration Denial of Service Vulnerabilities
First published: Wed Apr 17 2019(Updated: )
A vulnerability in the administrative GUI configuration feature of Cisco Wireless LAN Controller (WLC) Software could allow an aUTHENTICated, remote attacker to cause the device to reload unexpectedly during device configuration when the administrator is using this GUI, causing a denial of service (DoS) condition on an affected device. The attacker would need to have valid administrator credentials on the device. This vulnerability is due to incomplete input validation for unexpected configuration options that the attacker could submit while accessing the GUI configuration menus. An attacker could exploit these vulnerabilities by authenticating to the device and submitting crafted user input when using the administrative GUI configuration feature. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition. Software versions prior to 8.3.150.0, 8.5.140.0, 8.8.111.0 are affected by this vulnerability.
Credit: ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco Wireless LAN Controller Software | <8.3.150.0 | |
| Cisco Wireless LAN Controller Software | >=8.4<8.5.140.0 | |
| Cisco Wireless LAN Controller Software | >=8.6<8.8.111.0 |
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Reference Links
Frequently Asked Questions
What is the vulnerability ID of this issue?
The vulnerability ID of this issue is CVE-2018-0248.
What is the severity of CVE-2018-0248?
The severity of CVE-2018-0248 is medium with a CVSS score of 4.9.
What is affected by CVE-2018-0248?
The vulnerability affects Cisco Wireless LAN Controller (WLC) Software versions up to 8.3.150.0, versions between 8.4 and 8.5.140.0, and versions between 8.6 and 8.8.111.0.
What is the impact of CVE-2018-0248?
The impact of CVE-2018-0248 is that an authenticated remote attacker could cause the device to unexpectedly reload when the administrator is using the GUI, resulting in a denial of service.
Is there a fix available for CVE-2018-0248?
Yes, Cisco has released a security advisory that provides information on how to fix CVE-2018-0248. Please refer to the Cisco Security Advisory for details.
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