Signature validation bypass in github.com/moov-io/signedxml
Date: 2023-05
Affected: go/github.com/moov-io/signedxml
Attack vector: other
Category: vulnerability-disclosure
Severity: Critical
CVE: CVE-2023-34205
CWE: CWE-347
CVSS: 9.1 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N)

In Moov signedxml through 1.0.0, parsing the raw XML (as received) can result in different output than parsing the canonicalized XML. Thus, signature validation can be bypassed via a Signature Wrapping attack (aka XSW).


Mitigations:

Architectural layers (MAESTRO):