CVE-2021-33683 Other in SAP Web Dispatcher and Internet Communication Manager
Attackers can exploit HTTP request smuggling to bypass firewalls and intercept sensitive data like session credentials in SAP Web Dispatcher.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-33683?
CVE-2021-33683 is a medium-severity vulnerability in SAP Web Dispatcher and Internet Communication Manager, published on 14 Jul 2021. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
SAP Web Dispatcher and Internet Communication Manager (ICM), versions - KRNL32NUC 7.21, 7.21EXT, 7.22, 7.22EXT, KRNL32UC 7.21, 7.21EXT, 7.22, 7.22EXT, KRNL64NUC 7.21, 7.21EXT, 7.22, 7.22EXT, 7.49, KRNL64UC 7.21, 7.21EXT, 7.22, 7.22EXT, 7.49, 7.53, 7.73, WEBDISP 7.53, 7.73, 7.77, 7.81, 7.82, 7.83, KERNEL 7.21, 7.22, 7.49, 7.53, 7.73, 7.77, 7.81, 7.82, 7.83, process invalid HTTP header. The incorrect handling of the invalid Transfer-Encoding header in a particular manner leads to a possibility of HTTP Request Smuggling attack. An attacker could exploit this vulnerability to bypass web application firewall protection, divert sensitive data such as customer requests, session credentials, etc.
Weakness: CWE-444
Which versions are affected by CVE-2021-33683?
It affects 2 products.
Products include Sap Internet Communication Manager, Sap Web Dispatcher.
How do I fix CVE-2021-33683?
No fix has been published for CVE-2021-33683 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-33683 being exploited?
There is no known exploitation of CVE-2021-33683 in the wild and no public exploit code.
Other vulnerabilities in SAP Web Dispatcher and Internet Communication Manager
Sources
Also known as GHSA-wp36-xpj5-g4w9.