CVE-2020-5261
"Microsoft Sustainsys Saml2 Token Replay Detection Vulnerability"
Description
Saml2 Authentication services for ASP.NET (NuGet package Sustainsys.Saml2) greater than 2.0.0, and less than version 2.5.0 has a faulty implementation of Token Replay Detection. Token Replay Detection is an important defence in depth measure for Single Sign On solutions. The 2.5.0 version is patched. Note that version 1.0.1 is not affected. It has a correct Token Replay Implementation and is safe to use. Saml2 Authentication services for ASP.NET (NuGet package Sustainsys.Saml2) greater than 2.0.0, and less than version 2.5.0 have a faulty implementation of Token Replay Detection. Token Replay Detection is an important defense measure for Single Sign On solutions. The 2.5.0 version is patched. Note that version 1.0.1 and prior versions are not affected. These versions have a correct Token Replay Implementation and are safe to use.
INFO
Published Date :
March 25, 2020, 2:15 a.m.
Last Modified :
March 24, 2021, 1:15 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.8
Exploitability Score :
1.8
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-2020-5261.
| URL | Resource |
|---|---|
| https://github.com/Sustainsys/Saml2/commit/e58e0a1aff2b1ead6aca080b7cdced55ee6d5241 | Patch Third Party Advisory |
| https://github.com/Sustainsys/Saml2/issues/711 | Issue Tracking Third Party Advisory |
| https://github.com/Sustainsys/Saml2/security/advisories/GHSA-g6j2-ch25-5mmv | Third Party 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).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2020-5261 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-5261 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 -
Reanalysis by [email protected]
Mar. 24, 2021
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:simplesamlphp:saml2:*:*:*:*:*:*:*:* versions from (including) 2.0.0 up to (excluding) 2.5.0 OR *cpe:2.3:a:sustainsys:saml2:*:*:*:*:*:*:*:* versions from (including) 2.0.0 up to (excluding) 2.5.0 -
Initial Analysis by [email protected]
Mar. 27, 2020
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:M/Au:S/C:P/I:P/A:N) Added CVSS V3.1 NIST AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N Changed Reference Type https://github.com/Sustainsys/Saml2/commit/e58e0a1aff2b1ead6aca080b7cdced55ee6d5241 No Types Assigned https://github.com/Sustainsys/Saml2/commit/e58e0a1aff2b1ead6aca080b7cdced55ee6d5241 Patch, Third Party Advisory Changed Reference Type https://github.com/Sustainsys/Saml2/issues/711 No Types Assigned https://github.com/Sustainsys/Saml2/issues/711 Issue Tracking, Third Party Advisory Changed Reference Type https://github.com/Sustainsys/Saml2/security/advisories/GHSA-g6j2-ch25-5mmv No Types Assigned https://github.com/Sustainsys/Saml2/security/advisories/GHSA-g6j2-ch25-5mmv Third Party Advisory Added CWE NIST CWE-294 Added CPE Configuration OR *cpe:2.3:a:simplesamlphp:saml2:*:*:*:*:*:*:*:* versions from (including) 2.0.0 up to (excluding) 2.5.0 -
CVE Modified by [email protected]
Mar. 25, 2020
Action Type Old Value New Value Changed Description Saml2 Authentication services for ASP.NET (NuGet package Sustainsys.Saml2) before version 2.5.0 has a faulty implementation of Token Replay Detection. Token Replay Detection is an important defence in depth measure for Single Sign On solutions. The 2.5.0 version is patched. Saml2 Authentication services for ASP.NET (NuGet package Sustainsys.Saml2) greater than 2.0.0, and less than version 2.5.0 has a faulty implementation of Token Replay Detection. Token Replay Detection is an important defence in depth measure for Single Sign On solutions. The 2.5.0 version is patched. Note that version 1.0.1 is not affected. It has a correct Token Replay Implementation and is safe to use. Saml2 Authentication services for ASP.NET (NuGet package Sustainsys.Saml2) greater than 2.0.0, and less than version 2.5.0 have a faulty implementation of Token Replay Detection. Token Replay Detection is an important defense measure for Single Sign On solutions. The 2.5.0 version is patched. Note that version 1.0.1 and prior versions are not affected. These versions have a correct Token Replay Implementation and are safe to use.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-5261 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-2020-5261
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.10 }} 0.00%
score
0.39626
percentile