Advisory

SAP takes the security of its vast product portfolio very seriously and thus releases security fixes for vulnerabilities reported by external researchers and their customers every second Tuesday of the month.

SAP Note 3249990 was released on 08.11.2022 and deals with "[CVE-2021-20223] Multiple Vulnerabilities in SQlite bundled with SAPUI5" within ABAP, Java. We advice you to follow the instructions, to resolve denial of service (dos) with a high potential for exploitation in component CA-UI5-VTK-VIT.

According to SAP Security Advisory team a workaround does not exist. It is advisable to implement the correction as monthly patch process .

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

UPDATE 16th November 2022: CVE-2021-20223 was withdrawn by its CNA as further investigation showed that it was not a security issue. Hence the severity of the security note has been reduced from 'Very High' to 'High'. The SAPUI5 framework using SQLite allows an unauthenticated user to manipulate a Unicode 61 tokenizer resulting in a Denial of service vulnerability on the browser showing SAPUI5 applications.

Solution

The issue was fixed with the latest versions of SQLite and fixed within the patch releases mentioned in the note.

The advisory is valid for

SAP_UI 754 ²⁶
SAP_UI 755 ²²
SAP_UI 756 ¹⁶
SAP_UI 757 ⁸
UISAPUI5_STANDALONE 1000
UISAPUI5_STANDALONE 600
UISAPUI5_STANDALONE 700
UISAPUI5_STANDALONE 800
UISAPUI5_STANDALONE 900

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 ABAP, Java

CVSS 7.5

Component CA-UI5-VTK-VIT

Patch Day2022-11

Released on2022/11/08

SAP Note 3249990

Workaround No

Advisory

Risk specification

Solution

Disclaimer

_{Affected system}
ABAP, Java

_CVSS
7.5

_Component
CA-UI5-VTK-VIT

_{Patch Day}
2022-11

_{Released
on}
2022/11/08

_{SAP Note}
3249990

_Workaround
No