PT-2021-17543 · Sap · Sap Netweaver Abap Server+1

Published 2021-06-09 · Updated 2022-10-31 · CVE-2021-27607

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions SAP NetWeaver ABAP Server and ABAP Platform (Dispatcher) versions 7.22 through 7.83

Description The issue allows an unauthenticated attacker without specific knowledge of the system to send a specially crafted packet over a network, triggering an internal error in the system due to improper input validation in the ThSncIn() method. This causes the system to crash and renders it unavailable. In this attack, no data in the system can be viewed or modified.

Recommendations For SAP NetWeaver ABAP Server and ABAP Platform (Dispatcher) version 7.22, update to a version outside of the affected range. For SAP NetWeaver ABAP Server and ABAP Platform (Dispatcher) versions 7.22EXT through 7.83, update to a version outside of the affected range. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

CVE-2021-27607

Affected Products

Abap Platform

Sap Netweaver Abap Server

References · 5

• https://osv.dev/vulnerability/CVE-2021-27607 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-27607 · Security Note
• https://launchpad.support.sap.com/#/notes/3021197 · Vendor Advisory
• https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=578125999 · Vendor Advisory
• https://t.me/cvenotify/15977 · Telegram Post