Signature bypass via multiple root elements in Passport-SAML
CVE-2022-39299
Key Information:
- Vendor
Node-saml
- Status
- Vendor
- CVE Published:
- 12 October 2022
Badges
What is CVE-2022-39299?
Passport-SAML is a SAML 2.0 authentication provider for Passport, the Node.js authentication library. A remote attacker may be able to bypass SAML authentication on a website using passport-saml. A successful attack requires that the attacker is in possession of an arbitrary IDP signed XML element. Depending on the IDP used, fully unauthenticated attacks (e.g without access to a valid user) might also be feasible if generation of a signed message can be triggered. Users should upgrade to passport-saml version 3.2.2 or newer. The issue was also present in the beta releases of node-saml before version 4.0.0-beta.5. If you cannot upgrade, disabling SAML authentication may be done as a workaround.

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Affected Version(s)
passport-saml < 3.2.2
Exploit Proof of Concept (PoC)
PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.
References
EPSS Score
13% chance of being exploited in the next 30 days.
CVSS V3.1
Timeline
- π‘
Public PoC available
- πΎ
Exploit known to exist
Vulnerability published
Vulnerability Reserved
