CVE-2021-38162

SAP Web Dispatcher HTTP Request Smuggling

Severity Score

9.4

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

SAP Web Dispatcher versions - 7.49, 7.53, 7.77, 7.81, KRNL64NUC - 7.22, 7.22EXT, 7.49, KRNL64UC -7.22, 7.22EXT, 7.49, 7.53, KERNEL - 7.22, 7.49, 7.53, 7.77, 7.81, 7.83 processes allow an unauthenticated attacker to submit a malicious crafted request over a network to a front-end server which may, over several attempts, result in a back-end server confusing the boundaries of malicious and legitimate messages. This can result in the back-end server executing a malicious payload which can be used to read or modify any information on the server or consume server resources making it temporarily unavailable.

SAP Web Dispatcher versiones - 7.49, 7.53, 7.77, 7.81, KRNL64NUC - 7.22, 7.22EXT, 7.49, KRNL64UC -7.22, 7.22EXT, 7.49, 7.53, KERNEL - 7.22, 7.49, 7.53, 7.77, 7.81, 7. 83 unos procesos permiten a un atacante no autenticado enviar una petición maliciosa diseñada a través de una red a un servidor front-end que puede, a lo largo de varios intentos, hacer que un servidor back-end confunda los límites de los mensajes maliciosos y legítimos. Esto puede resultar en que el servidor back-end ejecutar una carga útil maliciosa que puede ser usada para leer o modificar cualquier información en el servidor o consumir recursos del servidor haciéndolo temporalmente no disponible

SAP Web Dispatcher suffers from an HTTP request smuggling vulnerability.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

Low

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

Low

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-08-07 CVE Reserved
2021-09-14 CVE Published
2024-05-30 EPSS Updated
2024-08-04 CVE Updated
2024-08-04 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-444: Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')

CAPEC

References (3)

URL	Tag	Source

URL	Date	SRC
http://packetstormsecurity.com/files/166964/SAP-Web-Dispatcher-HTTP-Request-Smuggling.html	2024-08-04
http://seclists.org/fulldisclosure/2022/May/3	2024-08-04

URL	Date	SRC

URL	Date	SRC
https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=585106405	2023-07-10

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Sap Search vendor "Sap"		Web Dispatcher Search vendor "Sap" for product "Web Dispatcher"				7.22ext Search vendor "Sap" for product "Web Dispatcher" and version "7.22ext"		-		Affected
Sap Search vendor "Sap"		Web Dispatcher Search vendor "Sap" for product "Web Dispatcher"				7.49 Search vendor "Sap" for product "Web Dispatcher" and version "7.49"		-		Affected
Sap Search vendor "Sap"		Web Dispatcher Search vendor "Sap" for product "Web Dispatcher"				7.53 Search vendor "Sap" for product "Web Dispatcher" and version "7.53"		-		Affected
Sap Search vendor "Sap"		Web Dispatcher Search vendor "Sap" for product "Web Dispatcher"				7.77 Search vendor "Sap" for product "Web Dispatcher" and version "7.77"		-		Affected
Sap Search vendor "Sap"		Web Dispatcher Search vendor "Sap" for product "Web Dispatcher"				7.81 Search vendor "Sap" for product "Web Dispatcher" and version "7.81"		-		Affected
Sap Search vendor "Sap"		Web Dispatcher Search vendor "Sap" for product "Web Dispatcher"				7.83 Search vendor "Sap" for product "Web Dispatcher" and version "7.83"		-		Affected
Sap Search vendor "Sap"		Web Dispatcher Search vendor "Sap" for product "Web Dispatcher"				kernel_7.22 Search vendor "Sap" for product "Web Dispatcher" and version "kernel_7.22"		-		Affected
Sap Search vendor "Sap"		Web Dispatcher Search vendor "Sap" for product "Web Dispatcher"				krnl64nuc_7.22 Search vendor "Sap" for product "Web Dispatcher" and version "krnl64nuc_7.22"		-		Affected
Sap Search vendor "Sap"		Web Dispatcher Search vendor "Sap" for product "Web Dispatcher"				krnl64uc_7.22 Search vendor "Sap" for product "Web Dispatcher" and version "krnl64uc_7.22"		-		Affected