Executive Summary

Informations
Name CVE-2020-26276 First vendor Publication 2020-12-17
Vendor Cve Last vendor Modification 2024-11-21

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Overall CVSS Score 9.8
Base Score 9.8 Environmental Score 9.8
impact SubScore 5.9 Temporal Score 9.8
Exploitabality Sub Score 3.9
 
Attack Vector Network Attack Complexity Low
Privileges Required None User Interaction None
Scope Unchanged Confidentiality Impact High
Integrity Impact High Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:M/Au:N/C:P/I:P/A:P)
Cvss Base Score 6.8 Attack Range Network
Cvss Impact Score 6.4 Attack Complexity Medium
Cvss Expoit Score 8.6 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

Fleet is an open source osquery manager. In Fleet before version 3.5.1, due to issues in Go's standard library XML parsing, a valid SAML response may be mutated by an attacker to modify the trusted document. This can result in allowing unverified logins from a SAML IdP. Users that configure Fleet with SSO login may be vulnerable to this issue. This issue is patched in 3.5.1. The fix was made using https://github.com/mattermost/xml-roundtrip-validator If upgrade to 3.5.1 is not possible, users should disable SSO authentication in Fleet.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-26276

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-290 Authentication Bypass by Spoofing

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 2

Sources (Detail)

https://github.com/fleetdm/fleet/blob/master/CHANGELOG.md#fleet-351-dec-14-2020
https://github.com/fleetdm/fleet/commit/57812a532e5f749c8e18c6f6a652eca65c083607
https://github.com/fleetdm/fleet/security/advisories/GHSA-w3wf-cfx3-6gcx
https://github.com/mattermost/xml-roundtrip-validator
https://mattermost.com/blog/coordinated-disclosure-go-xml-vulnerabilities
Source Url

Alert History

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Date Informations
2024-11-28 13:42:44
  • Multiple Updates
2021-05-05 01:39:02
  • Multiple Updates
2021-05-04 13:50:25
  • Multiple Updates
2021-04-22 03:02:21
  • Multiple Updates
2021-02-18 01:31:34
  • Multiple Updates
2020-12-19 00:22:51
  • Multiple Updates
2020-12-18 05:22:48
  • Multiple Updates
2020-12-18 00:22:53
  • First insertion