CVE-2020-26276
SAML authentication vulnerability due to stdlib XML parsing
描述
### 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](mailto:security@fleetdm.com) * Join #fleet in [osquery Slack](https://join.slack.com/t/osquery/shared_invite/zt-h29zm0gk-s2DBtGUTW4CFel0f0IjTEw)
如何修補 CVE-2020-26276
要修補 CVE-2020-26276,請將受影響套件升級到下列已修補版本。
- —升級至 3.5.1 或更新版本
CVE-2020-26276 正在被利用嗎?
低 — EPSS 為 2.2%,目前沒有觀察到大規模利用活動。
受影響套件(1)
- from 0, < 3.5.1