Advisory

A note with CVSS 4.9 for component BC-CST-WDP was released by SAP on 12.04.2022. The correction/advisory 3111293 was described with "[CVE-2022-28773] Denial of service (DOS) in SAP Web Dispatcher and SAP Netweaver (Internet Communication Manager)" and affects the system type Kernel.

A workaround exists, according to SAP Security Advisory team. It is advisable to implement the correction as part of maintenance.

The vulnerability addressed is denial of service (dos) within Kernel.

Denial of Service (DoS) attacks that take a system offline may lead to significant cost for the company, studies quantify the costs in average between 4 and 5 millions dollars. Business continuity requires SAP systems staying online. The CVSS scores or vulnerability descriptions are not enough to represent how a simple bug can lead to a significant loss for companies.

Risk specification

Due to an uncontrolled recursion in SAP Web Dispatcher and SAP Internet Communication Manager, the application may crash and become temporarily unavailable but can be restarted automatically.

Solution

The affected code has been updated to prevent the denial of service vulnerability Although an alternative solution exists, it is advisable to apply the correction! This is the workaround, which was suggested by the SAP security experts: "Disable the administration UI.".

The advisory is valid for

Releated advisories

Disclaimer

SecurityBridge takes the security of SAP products very seriously. We very much encourage the responsible disclosure of security vulnerabilities. If you have detected a vulnerability concerning one of the SAP software products – either in the latest or in a former product version follow the guidelines and processes in accordance with the SAP portal page “Report a Security Vulnerability to SAP”.

The advisories found within the SecurityBridge advisory are generated and continuously enriched by our Team at SecurityBridge and affiliated security consultants, partners, customers of the SecurityBridge Platform, SAP support, and advisory groups.

We do not disclose zero-day vulnerabilities unless a security patch has been made available to the public. In such case, the platform only provides details on which version or signature updates are available within the SecurityBridge platform in order to monitor or measure the vulnerability.

In accordance with SAP guidelines, SecurityBridge only discloses issues where the fixing security note has been released. The vulnerability platform makes no references to available exploits or Proof of Concepts (PoC). Advisories and vulnerabilities will always mention the fixing security note or hints to the corresponding SAP documentation.

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Notifications

Affected system Kernel

CVSS 4.9

Component BC-CST-WDP

Patch Day2022-04

Released on2022/04/12

SAP Note 3111293

Workaround Yes

Advisory

Risk specification

Solution

Disclaimer

_{Affected system}
Kernel

_CVSS
4.9

_Component
BC-CST-WDP

_{Patch Day}
2022-04

_{Released
on}
2022/04/12

_{SAP Note}
3111293

_Workaround
Yes