CVE-2018-5387
HIGH
7.5
CVSS Score
Published: July 24, 2018 at 03:00 PM UTC
Updated: June 17, 2026 at 02:00 AM UTC
1 product affected across 1 vendorSAMLBase
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Severity
HIGH7.5
Exploit prediction
EPSS 2%
Description
Wizkunde SAMLBase may incorrectly utilize the results of XML DOM traversal and canonicalization APIs in such a way that an attacker may be able to manipulate the SAML data without invalidating the cryptographic signature, allowing the attack to potentially bypass authentication to SAML service providers.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v < 1.2.7v < 1.4.2
Affected range stops below 1.2.7, so it looks safe — our inference, not a vendor statement
Affected range stops below 1.4.2, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (4)
x_refsource_MISCExploitThird Party Advisory
Source: [email protected]
https://duo.com/blog/duo-finds-saml-vulnerabilities-affecting-multiple-implementationsx_refsource_CONFIRMPatchThird Party Advisory
Source: [email protected]
https://github.com/GoGentoOSS/SAMLBase/commit/482cdf8c090e0f1179073034ebcb609ac7c3f5b3x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory
Source: [email protected]
https://github.com/GoGentoOSS/SAMLBase/issues/3Third Party Advisoryx_refsource_CERT-VNUS Government Resource
Source: [email protected]
https://www.kb.cert.org/vuls/id/475445CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- HIGH
- Availability
- NONE
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-287CWE-347
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