CVE-2020-5261
CVSS V2 Medium 4.9
CVSS V3 Medium 6.8
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.
Overview
- CVE ID
- CVE-2020-5261
- Assigner
- security-advisories@github.com
- Vulnerability Status
- Analyzed
- Published Version
- 2020-03-25T02:15:11
- Last Modified Date
- 2021-03-24T13:15:43
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:sustainsys:saml2:*:*:*:*:*:*:*:* | 1 | OR | 2.0.0 | 2.5.0 |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:M/Au:S/C:P/I:P/A:N
- Access Vector
- NETWORK
- Access Compatibility
- MEDIUM
- Authentication
- SINGLE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- PARTIAL
- Availability Impact
- NONE
- Base Score
- 4.9
- Severity
- MEDIUM
- Exploitability Score
- 6.8
- Impact Score
- 4.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
- Attack Vector
- NETWORK
- Attack Compatibility
- HIGH
- Privileges Required
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- NONE
- Base Score
- 6.8
- Base Severity
- MEDIUM
- Exploitability Score
- 1.6
- Impact Score
- 5.2
References
| Reference URL | Reference Tags |
|---|---|
| https://github.com/Sustainsys/Saml2/security/advisories/GHSA-g6j2-ch25-5mmv | Third Party Advisory |
| https://github.com/Sustainsys/Saml2/issues/711 | Issue Tracking Third Party Advisory |
| https://github.com/Sustainsys/Saml2/commit/e58e0a1aff2b1ead6aca080b7cdced55ee6d5241 | Patch Third Party Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2020-5261 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-5261 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 07:19:00 | Added to TrackCVE | |||
| 2022-12-04 13:30:02 | 2020-03-25T02:15Z | 2020-03-25T02:15:11 | CVE Published Date | updated |
| 2022-12-04 13:30:02 | 2021-03-24T13:15:43 | CVE Modified Date | updated | |
| 2022-12-04 13:30:02 | Analyzed | Vulnerability Status | updated |