Input Validation Flaw in SAP NetWeaver ABAP Server Allows System Crash
CVE-2021-27630

7.5HIGH

Key Information:

Vendor

SAP
Status
SAP Netweaver Abap Server And Abap Platform (enqueue Server)
Vendor
CVE Published:
9 June 2021

What is CVE-2021-27630?

The SAP NetWeaver ABAP Server and ABAP Platform are susceptible to an input validation flaw that allows an unauthenticated attacker to send specially crafted packets over the network. This exploitation may trigger an internal error in the method EnqConvUniToSrvReq(), resulting in a system crash and making the server unavailable. During this incident, no data within the system is accessible or modifiable, highlighting a significant pathway for denial-of-service attacks on affected versions.

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Affected Version(s)

SAP NetWeaver ABAP Server and ABAP Platform (Enqueue Server) < KRNL32NUC - 7.22 < KRNL32NUC - 7.22

SAP NetWeaver ABAP Server and ABAP Platform (Enqueue Server) < 7.22EXT < 7.22EXT

SAP NetWeaver ABAP Server and ABAP Platform (Enqueue Server) < KRNL64NUC - 7.22 < KRNL64NUC - 7.22

References

https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageI...
https://launchpad.support.sap.com/#/notes/3020104

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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