GHSA-w3wf-cfx3-6gcx
Suggest an improvement- Source
- https://github.com/advisories/GHSA-w3wf-cfx3-6gcx
- Import Source
- https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/02/GHSA-w3wf-cfx3-6gcx/GHSA-w3wf-cfx3-6gcx.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/GHSA-w3wf-cfx3-6gcx
- Aliases
- Related
- Published
- 2022-02-11T23:59:14Z
- Modified
- 2023-11-01T04:52:45.429890Z
- Summary
- SAML authentication vulnerability due to stdlib XML parsing
- Details
-
Impact
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.
Patches
This issue is patched in 3.5.1 using https://github.com/mattermost/xml-roundtrip-validator.
Workarounds
If upgrade to 3.5.1 is not possible, users should disable SSO authentication in Fleet.
References
See https://mattermost.com/blog/coordinated-disclosure-go-xml-vulnerabilities/ for more information about the underlying vulnerabilities.
For more information
If you have any questions or comments about this advisory: * Email us at security@fleetdm.com * Join #fleet in osquery Slack
- Database specific
{ "nvd_published_at": "2020-12-17T20:15:00Z", "cwe_ids": [ "CWE-290" ], "severity": "HIGH", "github_reviewed": true, "github_reviewed_at": "2021-05-21T20:46:21Z" }- References
-
- https://github.com/fleetdm/fleet/security/advisories/GHSA-w3wf-cfx3-6gcx
- https://nvd.nist.gov/vuln/detail/CVE-2020-26276
- https://github.com/fleetdm/fleet/commit/57812a532e5f749c8e18c6f6a652eca65c083607
- https://github.com/fleetdm/fleet/blob/master/CHANGELOG.md#fleet-351-dec-14-2020
- https://github.com/mattermost/xml-roundtrip-validator
- https://mattermost.com/blog/coordinated-disclosure-go-xml-vulnerabilities
Affected packages
Go / github.com/fleetdm/fleet/v4
Package
- Name
- github.com/fleetdm/fleet/v4
- View open source insights on deps.dev
- Purl
- pkg:golang/github.com/fleetdm/fleet/v4