CVE-2018-7644

mediumPriorität · verfolgen · 30EPSS 0.012 · 69. PerzentilEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.25% (69th) EPSS

CVSS 5 · medium

Is it mine?

5 products

Prüfe deine Angriffsfläche

Who says so?

4 sources

cnnvd · enisa_euvd · nvd · osv

EPSS · bewertet 2026-10-27

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.

cvss

Technischer Schweregrad, 0–10. Eine Zeile je Quelle.

7.5

010

Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen⚠ Quellen uneinig · medium–high · 5–7.5

v2.05mediumAV:N/AC:L/Au:N/C:N/I:P/A:Nprimary · NVD / NIST USAusnutzbarkeit 10 · Auswirkung 2.9

v3.07.5highCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:Nprimary · NVD / NIST USAusnutzbarkeit 3.9 · Auswirkung 3.6

v3.07.5highCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:Nsecondary · OSV

v3.06.9mediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N/E:Usecondary · CVSS-BT (t0sche)

schwächen

Die CWE-Schwächeklassen, zu denen dies gehört.

CWE-347USprimärCWE-347US

betroffene Produkte (5)

Betroffene Produkte und Versionsbereiche.

n/a n/a≤ n/aenisa_euvdEU
simplesamlphp simplesamlphp< 1.15.3nvdUScpe:2.3:a:simplesamlphp:simplesamlphp:*:*:*:*:*:*:*:*
Packagist simplesamlphp/saml2< 1.10.5osvUSpkg:composer/simplesamlphp/saml2
Packagist simplesamlphp/saml22.0 → 2.3.7osvUSpkg:composer/simplesamlphp/saml2
Packagist simplesamlphp/saml23.0 → 3.1.3osvUSpkg:composer/simplesamlphp/saml2

Advisories (1)

Hersteller- und Ökosystem-Meldungen dazu.

GHSA-923w-2xv2-7pr8SimpleSAMLphp Improper Verification of Cryptographic Signature2022-05-13ghsa · osvUS
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.

auch bekannt als (3)

Weitere Namen und Kennungen dieser Entität.

quellen

Welche Quellen diesen Datensatz belegen und wann.

cnnvd enisa_euvd nvd osv NVD CVE.org MITRE

veröffentlicht 2018-03-05geändert 2026-06-17

verwandt (1,048)

Verwandte Einträge.

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The JWT authentication mechanism accepts tokens signed with algorithms other than those explicitly configured or supported. This allows an attacker to craft a JWT with an unsupport…
CVE-2026-48558US	—OT kritisch	77.7% (100th)	KEV	2026-06-12
SimpleHelp versions 5.5.15 and prior and 6.0 pre-release versions contain an authentication bypass vulnerability in the OIDC authentication flow. When OIDC authentication is config…
CVE-2025-59719US	—OT kritisch	29.2% (98th)	—	2025-12-09
An improper verification of cryptographic signature vulnerability in Fortinet FortiWeb 8.0.0, FortiWeb 7.6.0 through 7.6.4, FortiWeb 7.4.0 through 7.4.9 may allow an unauthenticate…
CVE-2025-59718US	—OT kritisch	68.3% (99th)	KEV	2025-12-09
A improper verification of cryptographic signature vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3, FortiOS 7.4.0 through 7.4.8, FortiOS 7.2.0 through 7.2.11, FortiOS 7.0.0 t…

+1043 weitere

Referenzen (3)

Externe Belege — Patches, Meldungen, Analysen.

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