CVE-2021-40425 Denial of service in Secure Anywhere
A local attacker can cause a denial of service in Webroot Secure Anywhere by sending a specially crafted IOCTL request to the device driver.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-40425?
CVE-2021-40425 is a high-severity denial of service vulnerability in Webroot Secure Anywhere, published on 14 Apr 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
An out-of-bounds read vulnerability exists in the IOCTL GetProcessCommand and B_03 of Webroot Secure Anywhere 21.4. A specially-crafted executable can lead to denial of service. An attacker can issue an ioctl to trigger this vulnerability. An out-of-bounds read vulnerability exists in the IOCTL GetProcessCommand and B_03 of Webroot Secure Anywhere 21.4. An IOCTL_B03 request with specific invalid data causes a similar issue in the device driver WRCore_x64. An attacker can issue an ioctl to trigger this vulnerability.
Weakness: CWE-125
Which versions are affected by CVE-2021-40425?
It affects 1 product.
Products include Webroot Secureanywhere.
How do I fix CVE-2021-40425?
No fix has been published for CVE-2021-40425 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-2021-40425 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-40425 exists.
Other vulnerabilities in Webroot Secure Anywhere
Sources
Also known as GHSA-8p6g-qcgj-whg4.