CVE-2019-1830 Cisco Wireless LAN Controller Locally Significant Certificate Denial of Service Vulnerability
An authenticated administrator can cause a denial of service on Cisco Wireless LAN Controllers by configuring a malicious Locally Significant Certificate URL.
- 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-2019-1830?
CVE-2019-1830 is a medium-severity denial of service vulnerability in Cisco Wireless Lan Controller Software, published on 18 Apr 2019. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
A vulnerability in Locally Significant Certificate (LSC) management for the Cisco Wireless LAN Controller (WLC) could allow an authenticated, remote attacker to cause the device to unexpectedly restart, which causes a denial of service (DoS) condition. The attacker would need to have valid administrator credentials. The vulnerability is due to incorrect input validation of the HTTP URL used to establish a connection to the LSC Certificate Authority (CA). An attacker could exploit this vulnerability by authenticating to the targeted device and configuring a LSC certificate. An exploit could allow the attacker to cause a DoS condition due to an unexpected restart of the device.
Weakness: CWE-20
Which versions are affected by CVE-2019-1830?
It affects 1 product.
Products include Cisco Wireless Lan Controller Software.
How do I fix CVE-2019-1830?
No fix has been published for CVE-2019-1830 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-2019-1830 being exploited?
There is no known exploitation of CVE-2019-1830 in the wild and no public exploit code.
Other vulnerabilities in Cisco Wireless Lan Controller Software
Sources
Also known as GHSA-w2qg-wq7x-rcmg.