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 3303060
was released on
11.04.2023 and deals with
"[CVE-2023-29185] Denial of Service (DOS) in SAP NetWeaver AS for ABAP (Business Server Pages)" within ABAP.
We advice you to follow the instructions, to resolve
denial of service (dos)
with a
medium potential for exploitation
in component BC-BSP.
According to SAP Security Advisory team a workaround does not exist. It is advisable to implement the correction as monthly patch process.
Missing authority checks are still the most common security defect related to authorizations in custom code. Since SAP uses an explicit authorization model, an authority checks must be coded in order to be executed. If an explicit check is not coded, all users have access. This type of vulnerability not only exists in SAP standard it also exists in customer coding. Check your custom developments for vulnerabilities that pose a risk to your systems. SecurityBridge helps detect code vulnerabilities before they are implemented in production. 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
SAP NetWeaver AS for ABAP Business Server Pages allows an authenticated attacker to craft a request which can consume the resources of a server to render it unavailable, resulting in a denial of service vulnerability.Solution
The affected component now runs proper input validation and the consumption of server resources was limited.
Affected System
The advisory 3303060 describes a problem within an ABAP based systems of a specific version. Affected versions are described below. ABAP software is deployed in various software components and is widely used within the SAP product portfolio.
SAP NetWeaver Application Server (formally known as SAP Web Application Server) is a building block of SAP NetWeaver. It is the foundation for most software products developed by SAP SE. SAP NetWeaver systems exist with Java and/or ABAP stacks. The advisory could be relevant for single and dual-stack ABAP installations.
The advisory is valid for
- SAP_BASIS 700-702 66
- SAP_BASIS 731 78
- SAP_BASIS 740 81
- SAP_BASIS 750-757 22
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- 7.5 Denial of service (DOS) in SAP Commerce
- 7.5 [CVE-2020-6186] Denial of Service (DOS) Vulnerability in SAP Host Agent
