CVE-2021-33683
First published: Wed Jul 14 2021(Updated: )
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.
Credit: cna@sap.com cna@sap.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| SAP Web Dispatcher | =7.8_kernel_7.21 | |
| SAP Web Dispatcher | =7.21ext | |
| SAP Web Dispatcher | =7.22 | |
| SAP Web Dispatcher | =7.22ext | |
| SAP Web Dispatcher | =7.49 | |
| SAP Web Dispatcher | =7.53 | |
| SAP Web Dispatcher | =7.73 | |
| SAP Web Dispatcher | =7.77 | |
| SAP Web Dispatcher | =7.81 | |
| SAP Web Dispatcher | =7.82 | |
| SAP Web Dispatcher | =krnl32nuc_7.21 | |
| SAP Web Dispatcher | =krnl32uc_7.21 | |
| SAP Web Dispatcher | =krnl64nuc_7.21 | |
| SAP Web Dispatcher | =krnl64uc_7.21 | |
| SAP Web Dispatcher | =webdisp_7.53 | |
| Sap Internet Communication Manager | =7.21ext | |
| Sap Internet Communication Manager | =7.22 | |
| Sap Internet Communication Manager | =7.22ext | |
| Sap Internet Communication Manager | =7.49 | |
| Sap Internet Communication Manager | =7.53 | |
| Sap Internet Communication Manager | =7.73 | |
| Sap Internet Communication Manager | =7.77 | |
| Sap Internet Communication Manager | =7.81 | |
| Sap Internet Communication Manager | =7.82 | |
| Sap Internet Communication Manager | =kernel_7.21 | |
| Sap Internet Communication Manager | =krnl32nuc_7.21 | |
| Sap Internet Communication Manager | =krnl32uc_7.21 | |
| Sap Internet Communication Manager | =krnl64nuc_7.21 | |
| Sap Internet Communication Manager | =krnl64uc_7.21 | |
| Sap Internet Communication Manager | =webdisp_7.53 |
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Reference Links
Frequently Asked Questions
What is CVE-2021-33683?
CVE-2021-33683 refers to a vulnerability in SAP Web Dispatcher and Internet Communication Manager (ICM) versions.
What is the severity of CVE-2021-33683?
CVE-2021-33683 has a severity level of 4.3, which is considered medium.
Which software versions are affected by CVE-2021-33683?
CVE-2021-33683 affects the following software versions: SAP Web Dispatcher 7.8_kernel_7.21, 7.21ext, 7.22, 7.22ext, 7.49, 7.53, 7.73, 7.77, 7.81, 7.82, 7.83, Kernel_7.21, krnl32nuc_7.21, krnl32uc_7.21, krnl64nuc_7.21, krnl64uc_7.21, webdisp_7.53, Sap Internet Communication Manager 7.21ext, 7.22, 7.22ext, 7.49, 7.53, 7.73, 7.77, 7.81, 7.82, kernel_7.21, krnl32nuc_7.21, krnl32uc_7.21, krnl64nuc_7.21, krnl64uc_7.21, webdisp_7.53.
How severe is the vulnerability in SAP Web Dispatcher and Internet Communication Manager?
The vulnerability in SAP Web Dispatcher and Internet Communication Manager has a severity level of 4.3, which is considered medium.
How can I find more information about CVE-2021-33683?
You can find more information about CVE-2021-33683 in the SAP support portal and the SAP community wiki.
- collector/nvd-api
- collector/nvd-index
- agent/author
- agent/severity
- agent/weakness
- agent/references
- agent/type
- agent/description
- agent/event
- agent/softwarecombine
- agent/first-publish-date
- agent/last-modified-date
- agent/tags
- collector/mitre-cve
- source/MITRE
- vendor/sap
- canonical/sap web dispatcher
- version/sap web dispatcher/7.8_kernel_7.21
- version/sap web dispatcher/7.21ext
- version/sap web dispatcher/7.22
- version/sap web dispatcher/7.22ext
- version/sap web dispatcher/7.49
- version/sap web dispatcher/7.53
- version/sap web dispatcher/7.73
- version/sap web dispatcher/7.77
- version/sap web dispatcher/7.81
- version/sap web dispatcher/7.82
- version/sap web dispatcher/krnl32nuc_7.21
- version/sap web dispatcher/krnl32uc_7.21
- version/sap web dispatcher/krnl64nuc_7.21
- version/sap web dispatcher/krnl64uc_7.21
- version/sap web dispatcher/webdisp_7.53
- canonical/sap internet communication manager
- version/sap internet communication manager/7.21ext
- version/sap internet communication manager/7.22
- version/sap internet communication manager/7.22ext
- version/sap internet communication manager/7.49
- version/sap internet communication manager/7.53
- version/sap internet communication manager/7.73
- version/sap internet communication manager/7.77
- version/sap internet communication manager/7.81
- version/sap internet communication manager/7.82
- version/sap internet communication manager/kernel_7.21
- version/sap internet communication manager/krnl32nuc_7.21
- version/sap internet communication manager/krnl32uc_7.21
- version/sap internet communication manager/krnl64nuc_7.21
- version/sap internet communication manager/krnl64uc_7.21
- version/sap internet communication manager/webdisp_7.53