CVE-2018-0248 Cisco Wireless LAN Controller Software GUI Configuration Denial of Service Vulnerabilities
Authenticated attackers can cause Cisco Wireless LAN Controllers to reload unexpectedly via crafted GUI input, resulting in a denial of service.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2018-0248?
CVE-2018-0248 is a medium-severity denial of service vulnerability in Cisco Wireless Lan Controller Software, published on 17 Apr 2019. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
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.
Weakness: CWE-20
Which versions are affected by CVE-2018-0248?
It affects 1 product.
Products include Cisco Wireless Lan Controller Software.
How do I fix CVE-2018-0248?
No fix has been published for CVE-2018-0248 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2018-0248 being exploited?
There is no known exploitation of CVE-2018-0248 in the wild and no public exploit code.
Other vulnerabilities in Cisco Wireless Lan Controller Software
Sources
Also known as GHSA-9qwv-6vp9-5hpm.