GHSA-j2jp-wvqg-wc2g

crewjam/saml vulnerable to signature bypass via multiple Assertion elements due to improper authentication

Source: GitHub Advisory Database (reviewed) Critical CVE-2022-41912

Packages

Ecosystem	Package	Affected	Fixed in
Go	github.com/crewjam/saml	< 0.4.9	0.4.9

Details

As written in the advisory (Markdown source, shown as plain text).

### Impact The crewjam/saml go library is vulnerable to an authentication bypass when processing SAML responses containing multiple Assertion elements. ### Patches This issue has been corrected in version 0.4.9. ### Credit This issue was reported by Felix Wilhelm from Google Project Zero.

References

External links from the advisory. They lead to third-party sites.

https://github.com/crewjam/saml/security/advisories/GHSA-j2jp-wvqg-wc2g web
https://github.com/prometheus/exporter-toolkit/security/advisories/GHSA-7rg2-cxvp-9p7p web
https://nvd.nist.gov/vuln/detail/CVE-2022-41912 advisory
https://github.com/crewjam/saml/commit/aee3fb1edeeaf1088fcb458727e0fd863d277f8b web
https://github.com/crewjam/saml package
https://github.com/crewjam/saml/releases/tag/v0.4.9 web
https://pkg.go.dev/vuln/GO-2022-1129 web
http://packetstormsecurity.com/files/170356/crewjam-saml-Signature-Bypass.html web