CVE-2021-33672 Cross-site scripting in SAP Contact Center
Attackers can inject malicious scripts into chat messages, leading to remote code execution and full system compromise via ActiveX.
- 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-2021-33672?
CVE-2021-33672 is a critical cross-site scripting vulnerability in SAP Contact Center, published on 14 Sep 2021. 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
Due to missing encoding in SAP Contact Center's Communication Desktop component- version 700, an attacker could send malicious script in chat message. When the message is accepted by the chat recipient, the script gets executed in their scope. Due to the usage of ActiveX in the application, the attacker can further execute operating system level commands in the chat recipient's scope. This could lead to a complete compromise of their confidentiality, integrity, and could temporarily impact their availability.
Weakness: CWE-116
Which versions are affected by CVE-2021-33672?
It affects 1 product.
Products include Sap Contact Center.
How do I fix CVE-2021-33672?
No fix has been published for CVE-2021-33672 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2021-33672 being exploited?
There is no known exploitation of CVE-2021-33672 in the wild and no public exploit code.
Other vulnerabilities in SAP Contact Center
Sources
Also known as GHSA-v3pv-ppv6-v9rf.