Missing Token Replay Detection in Saml2 Authentication services for ASP.NET
### Impact Token Replay Detection is an important defence in depth measure for Single Sign On solutions. In all previous 2.X versions, the Token Replay Detection is not properly implemented. Note that version 1.0.1 is not affected. It has a correct Token Replay Implementation and is safe to use. ### Patches The 2.5.0 version is patched. ### Workarounds There are no workarounds with existing versions. Fixing the issue requires code updates. ### References https://en.wikipedia.org/wiki/Replay_attack ### For more information If you have any questions or comments about this advisory: * Comment on #711. * Email us at [security@sustainsys.com](mailto:security@susatinsys.com) if you think that there are further security issues.
describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2020-5261US | medium6.8OT elevated | — | ||
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. To… | ||||
references
External citations — patches, advisories, analysis.
Advisories like this name the exposed products attackers go after on your perimeter. See what is exposed on your perimeter with a free passive scan.
Free scan