CVE-2021-27607 Information

Description

SAP NetWeaver ABAP Server and ABAP Platform (Dispatcher) versions - KRNL32NUC - 7.227.22EXT KRNL32UC - 7.227.22EXT KRNL64NUC - 7.227.22EXT7.49 KRNL64UC - 8.047.227.22EXT7.497.537.73 KERNEL - 7.228.047.497.537.737.777.817.827.83 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 ThSncIn() causing the system to crash and rendering it unavailable. In this attack no data in the system can be viewed or modified.

CVSS Vector

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

Reference

https://launchpad.support.sap.com/#/notes/3021197 https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=578125999 http://seclists.org/fulldisclosure/2021/Oct/27 http://packetstormsecurity.com/files/164591/SAP-NetWeaver-ABAP-Dispatcher-Service-Memory-Corruption.html

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5