CVE-2020-26276 - Vulnerability Details - OpenCVE

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.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Changed

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

Access Vector Network

Access Complexity Medium

Authentication None

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

The EPSS score is 0.00978.

Key SSVC decision points have not yet been added.

Vendors	Products
Fleetdm	Fleet

Configuration 1 [-]

cpe:2.3:a:fleetdm:fleet:*:*:*:*:*:*:*:*

No data.

No data.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
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

History

No history.

MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2020-12-17T19:40:14

Updated: 2024-08-04T15:56:04.500Z

Reserved: 2020-10-01T00:00:00

Link: CVE-2020-26276

Vulnrichment

No data.

NVD

Status : Modified

Published: 2020-12-17T20:15:13.760

Modified: 2024-11-21T05:19:44.010

Link: CVE-2020-26276

Redhat

No data.

OpenCVE Enrichment

No data.

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