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CVE
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CVE-2018-7644Date: (C)2018-03-09   (M)2023-12-22


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 Score and Metrics +CVSS Score and Metrics -

CVSS V3 Severity:CVSS V2 Severity:
CVSS Score : 7.5CVSS Score : 5.0
Exploit Score: 3.9Exploit Score: 10.0
Impact Score: 3.6Impact Score: 2.9
 
CVSS V3 Metrics:CVSS V2 Metrics:
Attack Vector: NETWORKAccess Vector: NETWORK
Attack Complexity: LOWAccess Complexity: LOW
Privileges Required: NONEAuthentication: NONE
User Interaction: NONEConfidentiality: NONE
Scope: UNCHANGEDIntegrity: PARTIAL
Confidentiality: NONEAvailability: NONE
Integrity: HIGH 
Availability: NONE 
  
Reference:
https://simplesamlphp.org/security/201802-01

CPE    1
cpe:/a:simplesamlphp:simplesamlphp
CWE    1
CWE-347
OVAL    7
oval:org.secpod.oval:def:114183
oval:org.secpod.oval:def:114182
oval:org.secpod.oval:def:114185
oval:org.secpod.oval:def:114184
...

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