tngan/samlify · Security
Samlify vulnerable to Authentication Bypass by allowing tokens to be reused with different usernames
- GHSA ID
- GHSA-8jjf-w7j6-323c
- CVE ID
- CVE-2017-1000452
- Severity
- high
- Published
- Updated
- CVSS
- 7.5 · CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- CVSS v3
- 7.5 · CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Description
Versions of samlify prior to 2.4.0-rc5 are vulnerable to Authentication Bypass. The package fails to prevent XML Signature Wrapping, allowing tokens to be reused with different usernames. A remote attacker can modify SAML content for a SAML service provider without invalidating the cryptographic signature, which may allow attackers to bypass primary authentication for the affected SAML service provider.
Recommendation
Upgrade to version 2.4.0-rc5 or later
CWEs
- CWE-91 · XML Injection (aka Blind XPath Injection)
- CWE-347 · Improper Verification of Cryptographic Signature
References
- https://nvd.nist.gov/vuln/detail/CVE-2017-1000452 ↗
- https://hackerone.com/reports/356284 ↗
- https://www.whitehats.nl/blog/xml-signature-wrapping-samlify ↗
- https://github.com/tngan/samlify/commit/d382bbc7c6b8ea889839ae1f178730c25b09eb42 ↗
- https://github.com/tngan/samlify/compare/v2.4.0-rc4...v2.4.0-rc5 ↗
- https://github.com/tngan/samlify/releases/tag/v2.4.0-rc5 ↗
- https://github.com/advisories/GHSA-8jjf-w7j6-323c ↗