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CVE-2018-7644

N/A
Published: March 5, 2018 at 02:00 PM UTC
Updated: June 17, 2026 at 02:03 AM UTC
1 product affected across 1 vendorSimplesamlphp

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Severity
N/A
Exploit prediction
EPSS 1%

Description

The XmlSecLibs library as used in the saml2 library in SimpleSAMLphp before 1.15.3 incorrectly verifies signatures on SAML assertions, allowing a remote attacker to construct a crafted SAML assertion on behalf of an Identity Provider that would pass as cryptographically valid, thereby allowing them to impersonate a user from that Identity Provider, aka a key confusion issue.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Simplesamlphp· Simplesamlphp
95%
v < 1.15.3
Affected range stops below 1.15.3, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

x_refsource_CONFIRMVendor Advisory
Source: [email protected]
https://simplesamlphp.org/security/201802-01

CVSS

5MEDIUM[email protected]
Confidentiality
NONE
Integrity
PARTIAL
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-347

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