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CVE-2021-33683

MEDIUM
Published 2021-07-14T11:04:45
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CVSS Score

V3.0
5.4
/10
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Base Score Metrics
Exploitability: N/A Impact: N/A

EPSS Score

v2025.03.14
0.001
probability
of exploitation in the wild

There is a 0.1% chance that this vulnerability will be exploited in the wild within the next 30 days.

Updated: 2025-06-25
Exploit Probability
Percentile: 0.272
Higher than 27.2% of all CVEs

Attack Vector Metrics

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED

Impact Metrics

Confidentiality
LOW
Integrity
LOW
Availability
NONE

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.

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

Affected Products

SAP SE

SAP Web Dispatcher and Internet Communication Manager

Affected Versions:

< KRNL32NUC 7.21 < 7.21EXT < 7.22 < 7.22EXT < KRNL32UC 7.21 < KRNL64NUC 7.21 < 7.49 < KRNL64UC 7.21 < 7.53 < 7.73 < WEBDISP 7.53 < 7.77 < 7.81 < 7.82 < 7.83 < KERNEL 7.21

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

⚠ Unreviewed MODERATE

GHSA-wp36-xpj5-g4w9

Advisory Details

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.

CVSS Scoring

CVSS Score

5.0

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

References

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2021-33683
WEB https://launchpad.support.sap.com/#/notes/3000663
WEB https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=580617506

Advisory provided by GitHub Security Advisory Database. Published: May 24, 2022, Modified: September 28, 2023

References

https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=580617506
https://launchpad.support.sap.com/#/notes/3000663
Published: 2021-07-14T11:04:45
Last Modified: 2024-08-03T23:58:22.780Z
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