Attacker Value
Unknown
0
CVE-2021-33683
0
CVE ID
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CVE-2021-33683
(Last updated November 28, 2024) ▾
MITRE ATT&CK
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Collection
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Command and Control
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Credential Access
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Defense Evasion
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Discovery
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Execution
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Exfiltration
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Initial Access
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Lateral Movement
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Persistence
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Privilege Escalation
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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.
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CVSS V3 Severity and Metrics
Data provided by the National Vulnerability Database (NVD)
Base Score:
4.3 Medium
Impact Score:
1.4
Exploitability Score:
2.8
Attack Vector (AV):
Network
Attack Complexity (AC):
Low
Privileges Required (PR):
Low
User Interaction (UI):
None
Scope (S):
Unchanged
Confidentiality (C):
None
Integrity (I):
Low
Availability (A):
None
General Information
Offensive Application
Unknown
Utility Class
Unknown
Ports
Unknown
OS
Unknown
Vulnerable Versions
SAP Web Dispatcher and Internet Communication Manager KRNL32NUC 7.21
SAP Web Dispatcher and Internet Communication Manager 7.21EXT
SAP Web Dispatcher and Internet Communication Manager 7.22
SAP Web Dispatcher and Internet Communication Manager 7.22EXT
SAP Web Dispatcher and Internet Communication Manager KRNL32UC 7.21
SAP Web Dispatcher and Internet Communication Manager 7.21EXT
SAP Web Dispatcher and Internet Communication Manager 7.22
SAP Web Dispatcher and Internet Communication Manager 7.22EXT
SAP Web Dispatcher and Internet Communication Manager KRNL64NUC 7.21
SAP Web Dispatcher and Internet Communication Manager 7.21EXT
SAP Web Dispatcher and Internet Communication Manager 7.22
SAP Web Dispatcher and Internet Communication Manager 7.22EXT
SAP Web Dispatcher and Internet Communication Manager 7.49
SAP Web Dispatcher and Internet Communication Manager KRNL64UC 7.21
SAP Web Dispatcher and Internet Communication Manager 7.21EXT
SAP Web Dispatcher and Internet Communication Manager 7.22
SAP Web Dispatcher and Internet Communication Manager 7.22EXT
SAP Web Dispatcher and Internet Communication Manager 7.49
SAP Web Dispatcher and Internet Communication Manager 7.53
SAP Web Dispatcher and Internet Communication Manager 7.73
SAP Web Dispatcher and Internet Communication Manager WEBDISP 7.53
SAP Web Dispatcher and Internet Communication Manager 7.73
SAP Web Dispatcher and Internet Communication Manager 7.77
SAP Web Dispatcher and Internet Communication Manager 7.81
SAP Web Dispatcher and Internet Communication Manager 7.82
SAP Web Dispatcher and Internet Communication Manager 7.83
SAP Web Dispatcher and Internet Communication Manager KERNEL 7.21
SAP Web Dispatcher and Internet Communication Manager 7.22
SAP Web Dispatcher and Internet Communication Manager 7.49
SAP Web Dispatcher and Internet Communication Manager 7.53
SAP Web Dispatcher and Internet Communication Manager 7.73
SAP Web Dispatcher and Internet Communication Manager 7.77
SAP Web Dispatcher and Internet Communication Manager 7.81
SAP Web Dispatcher and Internet Communication Manager 7.82
SAP Web Dispatcher and Internet Communication Manager 7.83
Prerequisites
Unknown
Discovered By
Unknown
PoC Author
Unknown
Metasploit Module
Unknown
Reporter
Unknown
Vendors
Products
- internet communication manager 7.21ext,
- internet communication manager 7.22,
- internet communication manager 7.22ext,
- internet communication manager 7.49,
- internet communication manager 7.53,
- internet communication manager 7.73,
- internet communication manager 7.77,
- internet communication manager 7.81,
- internet communication manager 7.82,
- internet communication manager kernel 7.21,
- internet communication manager krnl32nuc 7.21,
- internet communication manager krnl32uc 7.21,
- internet communication manager krnl64nuc 7.21,
- internet communication manager krnl64uc 7.21,
- internet communication manager webdisp 7.53,
- web dispatcher 7.21ext,
- web dispatcher 7.22,
- web dispatcher 7.22ext,
- web dispatcher 7.49,
- web dispatcher 7.53,
- web dispatcher 7.73,
- web dispatcher 7.77,
- web dispatcher 7.8 kernel 7.21,
- web dispatcher 7.81,
- web dispatcher 7.82,
- web dispatcher krnl32nuc 7.21,
- web dispatcher krnl32uc 7.21,
- web dispatcher krnl64nuc 7.21,
- web dispatcher krnl64uc 7.21,
- web dispatcher webdisp 7.53
References
Additional Info
Authenticated
Unknown
Exploitable
Unknown
Reliability
Unknown
Stability
Unknown
Available Mitigations
Unknown
Shelf Life
Unknown
Userbase/Installbase
Unknown
Patch Effectiveness
Unknown
Rapid7
Technical Analysis
Report as Emergent Threat Response
Report as Zero-day Exploit
Report as Exploited in the Wild
CVE ID
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