CVE-2021-21474: Weak Encryption
First published: Tue Feb 09 2021(Updated: )
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.
Credit: cna@sap.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| SAP HANA Database | =1.00 | |
| SAP HANA Database | =2.00 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2021-21474?
The severity of CVE-2021-21474 is medium (6.5).
How does CVE-2021-21474 impact SAP HANA Database versions 1.0 and 2.0?
CVE-2021-21474 allows an attacker who manages to obtain an MD5-digest signed SAML Assertion issued for an SAP HANA instance to tamper with it and alter it without invalidating the digest.
Which software versions are affected by CVE-2021-21474?
SAP HANA Database versions 1.0 and 2.0 are affected by CVE-2021-21474.
How can an attacker exploit CVE-2021-21474?
An attacker can exploit CVE-2021-21474 by obtaining an MD5-digest signed SAML Assertion for an SAP HANA instance and tampering with it.
Where can I find more information about CVE-2021-21474?
You can find more information about CVE-2021-21474 at the SAP support portal and the SAP community wiki.
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