CVE-2021-21474
SAP HANA Database SAML Token Digest Impersonation Vulnerability
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.
INFO
Published Date :
Feb. 9, 2021, 9:15 p.m.
Last Modified :
July 12, 2022, 5:42 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.2
Exploitability Score :
1.2
Public PoC/Exploit Available at Github
CVE-2021-21474 has a 1 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-21474.
| URL | Resource |
|---|---|
| https://launchpad.support.sap.com/#/notes/2992154 | Permissions Required |
| https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=568460543 | Vendor Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Personal repository of publications and presentations
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-21474 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-21474 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CWE Remap by [email protected]
Jul. 12, 2022
Action Type Old Value New Value Changed CWE CWE-347 CWE-326 -
Initial Analysis by [email protected]
Feb. 16, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:S/C:P/I:P/A:N) Added CVSS V3.1 NIST AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N Changed Reference Type https://launchpad.support.sap.com/#/notes/2992154 No Types Assigned https://launchpad.support.sap.com/#/notes/2992154 Permissions Required Changed Reference Type https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=568460543 No Types Assigned https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=568460543 Vendor Advisory Added CWE NIST CWE-347 Added CPE Configuration OR *cpe:2.3:a:sap:hana_database:1.00:*:*:*:*:*:*:* *cpe:2.3:a:sap:hana_database:2.00:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-21474 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-21474
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.06 }} 0.00%
score
0.26415
percentile