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 3363690
was released on
12.12.2023 and deals with
"[CVE-2023-49058] Directory Traversal vulnerability in SAP Master Data Governance" within ABAP.
We advice you to follow the instructions, to resolve
directory traversal (read/write)
with a
low potential for exploitation
in component CA-MDG-ML.
According to SAP Security Advisory team a workaround does not exist. It is advisable to implement the correction as project.
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.
Risk specification
This note has been re-released with minor textual changes. SAP Master Data Governance File Upload allows an authenticated attacker to exploit insufficient validation of path information provided by users thus characters representing ‘traverse to parent directory’ are passed through to the file access APIs resulting in a Directory Traversal vulnerability.Solution
The application now properly checks the paths submitted by the user and disallowed arbitrary file reads
Affected System
The advisory 3363690 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
- MDG_FND 731
- MDG_FND 732
- MDG_FND 746
- MDG_FND 747
- MDG_FND 748
- MDG_FND 749
- MDG_FND 751
- MDG_FND 752
- MDG_FND 800
- MDG_FND 802
- MDG_FND 803
- MDG_FND 804
- MDG_FND 805
- MDG_FND 806
- MDG_FND 807
- MDG_FND 808
- SAP_BS_FND 702 4
