Advisory Published
Updated

CVE-2021-27603

First published: Tue Apr 13 2021(Updated: )

An RFC enabled function module SPI_WAIT_MILLIS in SAP NetWeaver AS ABAP, versions - 731, 740, 750, allows to keep a work process busy for any length of time. An attacker could call this function module multiple times to block all work processes thereby causing Denial of Service and affecting the Availability of the SAP system.

Credit: cna@sap.com

Affected SoftwareAffected VersionHow to fix
SAP NetWeaver Application Server=731
SAP NetWeaver Application Server=740
SAP NetWeaver Application Server=750

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Frequently Asked Questions

  • What is the severity of CVE-2021-27603?

    CVE-2021-27603 is classified as a high-severity vulnerability that can lead to Denial of Service.

  • What software is affected by CVE-2021-27603?

    CVE-2021-27603 affects SAP NetWeaver AS ABAP versions 731, 740, and 750.

  • How do I fix CVE-2021-27603?

    To fix CVE-2021-27603, apply the necessary patches provided by SAP for the affected versions.

  • What type of attack does CVE-2021-27603 enable?

    CVE-2021-27603 enables an attacker to block all work processes, resulting in a Denial of Service attack.

  • Is there a workaround for CVE-2021-27603?

    There are no official workarounds for CVE-2021-27603; patching the software is the recommended action.

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