CVE-2021-27634

Severity Score

5.9

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

SAP NetWeaver AS for ABAP (RFC Gateway), versions - KRNL32NUC - 7.22,7.22EXT, KRNL64NUC - 7.22,7.22EXT,7.49, KRNL64UC - 8.04,7.22,7.22EXT,7.49,7.53,7.73, KERNEL - 7.22,8.04,7.49,7.53,7.73,7.77,7.81,7.82,7.83, allows an unauthenticated attacker without specific knowledge of the system to send a specially crafted packet over a network which will trigger an internal error in the system due to improper input validation in method ThCpicDtCreate () causing the system to crash and rendering it unavailable. In this attack, no data in the system can be viewed or modified.

SAP NetWeaver AS para ABAP (RFC Gateway), versiones - KRNL32NUC - 7.22,7.22EXT, KRNL64NUC - 7.22,7.22EXT, 7.49, KRNL64UC - 8.04,7.22,7.22EXT, 7.49,7.53,7.73, KERNEL - 7.22,8.04,7.49 , 7.53,7.73,7.77,7.81,7.82,7.83, permite a un atacante no autenticado sin conocimiento específico del sistema enviar un paquete especialmente diseñado a través de una red que desencadenará un error interno en el sistema debido a una comprobación inapropiada de entrada en el método ThCpicDtCreate() causando el bloqueo del sistema y hacer que no esté disponible. En este ataque, ningún dato del sistema puede ser visualizado o modificado

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-02-23 CVE Reserved
2021-06-09 CVE Published
2024-02-23 EPSS Updated
2024-08-03 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-787: Out-of-bounds Write

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=578125999	2022-10-31

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Sap Search vendor "Sap"		Netweaver Abap Search vendor "Sap" for product "Netweaver Abap"				kernel_7.22 Search vendor "Sap" for product "Netweaver Abap" and version "kernel_7.22"		-		Affected
Sap Search vendor "Sap"		Netweaver Abap Search vendor "Sap" for product "Netweaver Abap"				kernel_7.49 Search vendor "Sap" for product "Netweaver Abap" and version "kernel_7.49"		-		Affected
Sap Search vendor "Sap"		Netweaver Abap Search vendor "Sap" for product "Netweaver Abap"				kernel_7.53 Search vendor "Sap" for product "Netweaver Abap" and version "kernel_7.53"		-		Affected
Sap Search vendor "Sap"		Netweaver Abap Search vendor "Sap" for product "Netweaver Abap"				kernel_7.73 Search vendor "Sap" for product "Netweaver Abap" and version "kernel_7.73"		-		Affected
Sap Search vendor "Sap"		Netweaver Abap Search vendor "Sap" for product "Netweaver Abap"				kernel_8.04 Search vendor "Sap" for product "Netweaver Abap" and version "kernel_8.04"		-		Affected
Sap Search vendor "Sap"		Netweaver Abap Search vendor "Sap" for product "Netweaver Abap"				krnl32nuc_7.22 Search vendor "Sap" for product "Netweaver Abap" and version "krnl32nuc_7.22"		-		Affected
Sap Search vendor "Sap"		Netweaver Abap Search vendor "Sap" for product "Netweaver Abap"				krnl32nuc_7.22ext Search vendor "Sap" for product "Netweaver Abap" and version "krnl32nuc_7.22ext"		-		Affected
Sap Search vendor "Sap"		Netweaver Abap Search vendor "Sap" for product "Netweaver Abap"				krnl64nuc_7.22 Search vendor "Sap" for product "Netweaver Abap" and version "krnl64nuc_7.22"		-		Affected
Sap Search vendor "Sap"		Netweaver Abap Search vendor "Sap" for product "Netweaver Abap"				krnl64nuc_7.22ext Search vendor "Sap" for product "Netweaver Abap" and version "krnl64nuc_7.22ext"		-		Affected
Sap Search vendor "Sap"		Netweaver Abap Search vendor "Sap" for product "Netweaver Abap"				krnl64nuc_7.49 Search vendor "Sap" for product "Netweaver Abap" and version "krnl64nuc_7.49"		-		Affected
Sap Search vendor "Sap"		Netweaver Abap Search vendor "Sap" for product "Netweaver Abap"				krnl64uc_7.22 Search vendor "Sap" for product "Netweaver Abap" and version "krnl64uc_7.22"		-		Affected
Sap Search vendor "Sap"		Netweaver Abap Search vendor "Sap" for product "Netweaver Abap"				krnl64uc_7.22ext Search vendor "Sap" for product "Netweaver Abap" and version "krnl64uc_7.22ext"		-		Affected
Sap Search vendor "Sap"		Netweaver Abap Search vendor "Sap" for product "Netweaver Abap"				krnl64uc_7.49 Search vendor "Sap" for product "Netweaver Abap" and version "krnl64uc_7.49"		-		Affected
Sap Search vendor "Sap"		Netweaver Abap Search vendor "Sap" for product "Netweaver Abap"				krnl64uc_7.53 Search vendor "Sap" for product "Netweaver Abap" and version "krnl64uc_7.53"		-		Affected
Sap Search vendor "Sap"		Netweaver Abap Search vendor "Sap" for product "Netweaver Abap"				krnl64uc_7.73 Search vendor "Sap" for product "Netweaver Abap" and version "krnl64uc_7.73"		-		Affected
Sap Search vendor "Sap"		Netweaver Abap Search vendor "Sap" for product "Netweaver Abap"				krnl64uc_8.04 Search vendor "Sap" for product "Netweaver Abap" and version "krnl64uc_8.04"		-		Affected