CVE-2024-47832
SSOReady has an XML Signature Bypass via differential XML parsing
Impact
Affected versions are vulnerable to XML signature bypass attacks. An attacker can carry out signature bypass if you have access to certain IDP-signed messages. The underlying mechanism exploits differential behavior between XML parsers. Users of https://ssoready.com, the public hosted instance of SSOReady, are unaffected. We advise folks who self-host SSOReady to upgrade to 7f92a06 or later. Do so by updating your SSOReady Docker images from `sha-...` to `sha-7f92a06`. The documentation for self-hosting SSOReady is available [here](https://ssoready.com/docs/self-hosting/self-hosting-sso-ready). Vulnerability was discovered by @ahacker1-securesaml. It's likely the precise mechanism of attack affects other SAML implementations, so the reporter and I (@ucarion) have agreed to not disclose it in detail publicly at this time.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| go | github.com/ssoready/ssoready | < 0.0.0-20241009153838-7f92a0630439 | 0.0.0-20241009153838-7f92a0630439 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Ssoready | Ssoready | before 2024-10-09 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/ssoready/ssoready/commit/7f92a0630439972fcbefa8c7eafe8c144bd89915
- https://github.com/ssoready/ssoready/security/advisories/GHSA-j2hr-q93x-gxvh
- https://ssoready.com/docs/self-hosting/self-hosting-sso-ready
- https://github.com/advisories/GHSA-j2hr-q93x-gxvh
- https://nvd.nist.gov/vuln/detail/CVE-2024-47832
- https://pkg.go.dev/vuln/GO-2024-3185