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CVE-2024-47832 — Vulnerability in github.com/ssoready/ssoready —...

CRITICAL

SSOReady has an XML Signature Bypass via differential XML parsing

Published October 11, 2024Updated October 11, 2024Source: osv

Summary

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.

Advisory Timeline

  • First published October 11, 2024 (731 days ago).
  • Last revised October 11, 2024 — 0 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

Go
Update github.com/ssoready/ssoready to 0.0.0-20241009153838-7f92a0630439 or later
go get github.com/ssoready/ssoready@v0.0.0-20241009153838-7f92a0630439

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (1)

Affects 1 ecosystem: go (1).

PackageEcosystemAffectedFixed In
github.com/ssoready/ssoready
go
All versions0.0.0-20241009153838-7f92a0630439

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

  • CWE-347
    Improper Verification of Cryptographic SignatureMITRE

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 9.8 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

Frequently Asked Questions

What is CVE-2024-47832?
SSOReady has an XML Signature Bypass via differential XML parsing This vulnerability has been assigned a severity rating of CRITICAL (CVSS score: 9.8/10).
How do I check if my project is affected by CVE-2024-47832?
CVE-2024-47832 affects github.com/ssoready/ssoready. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2024-47832 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
9.8

Exploitation is straightforward and causes maximum impact. Patch immediately.

Also Known As

GHSA-j2hr-q93x-gxvh
GO-2024-3185

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