CVE-2019-1866 Cisco Webex Business Suite Host Header Value Integrity Vulnerability
An attacker in a privileged network position can manipulate host headers to redirect users to arbitrary sites, compromising application integrity.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2019-1866?
CVE-2019-1866 is a low-severity vulnerability in Cisco Webex Business Suite, published on 13 Apr 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Cisco Webex Business Suite before 39.1.0 contains a vulnerability that could allow an unauthenticated, remote attacker to affect the integrity of the application. The vulnerability is due to improper validation of host header values. An attacker with a privileged network position, either a man-in-the-middle or by intercepting wireless network traffic, could exploit this vulnerability to manipulate header values sent by a client to the affected application. The attacker could cause the application to use input from the header to redirect a user from the Cisco Webex Meetings Online site to an arbitrary site of the attacker's choosing.
Which versions are affected by CVE-2019-1866?
It affects 1 product.
Products include Cisco Webex Business Suite 39.
How do I fix CVE-2019-1866?
No fix has been published for CVE-2019-1866 yet. Limit exposure of the affected software until one is available.
Is CVE-2019-1866 being exploited?
There is no known exploitation of CVE-2019-1866 in the wild and no public exploit code.
Sources
Also known as GHSA-6gq6-x7pv-3ggr.