CVE-2018-0436 Cisco Webex Teams Information Disclosure and Modification Vulnerability

High 8.7 Published 5 Oct 2018 Updated 26 Nov 2024

Authenticated attackers with admin privileges can view and modify data for other organizations due to insufficient account association checks.

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-2018-0436?

CVE-2018-0436 is a high-severity missing authorization vulnerability in Cisco Webex Teams, published on 5 Oct 2018. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

A vulnerability in Cisco Webex Teams, formerly Cisco Spark, could allow an authenticated, remote attacker to view and modify data for an organization other than their own organization. The vulnerability exists because the affected software performs insufficient checks for associations between user accounts and organization accounts. An attacker who has administrator or compliance officer privileges for one organization account could exploit this vulnerability by using those privileges to view and modify data for another organization account. No customer data was impacted by this vulnerability.

Weakness: CWE-269, CWE-284

Which versions are affected by CVE-2018-0436?

It affects 1 product.

Products include Cisco Webex Teams.

How do I fix CVE-2018-0436?

No fix has been published for CVE-2018-0436 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2018-0436 being exploited?

There is no known exploitation of CVE-2018-0436 in the wild and no public exploit code.

Sources

Also known as GHSA-jr8m-x5pc-vrvr.