Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2021-27597

Severity CVSS v4.0:
Pending analysis
Type:
CWE-125 Out-of-bounds Read
Publication date:
09/06/2021
Last modified:
31/10/2022

Description

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 memmove() causing the system to crash and rendering it unavailable. In this attack, no data in the system can be viewed or modified.

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x
7.50
Severity 3.x
HIGH
Vector 2.0
AV:N/AC:L/Au:N/C:N/I:N/A:P CVSS v2.0 Severity and Metrics:

Base Score: 5.00 MEDIUM
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Physical

Base Score 2.0
5.00
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:sap:netweaver_abap:kernel_7.22:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_abap:kernel_7.49:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_abap:kernel_7.53:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_abap:kernel_7.73:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_abap:kernel_8.04:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_abap:krnl32nuc_7.22:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_abap:krnl32nuc_7.22ext:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_abap:krnl64nuc_7.22:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_abap:krnl64nuc_7.22ext:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_abap:krnl64nuc_7.49:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_abap:krnl64uc_7.22:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_abap:krnl64uc_7.22ext:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_abap:krnl64uc_7.49:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_abap:krnl64uc_7.53:*:*:*:*:*:*:*
cpe:2.3:a:sap:netweaver_abap:krnl64uc_7.73:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools