GitHub Advisory DatabaseGHSA-R8V4-7VWJ-983XSimpleSAMLphp SAML2 spoof SAML responses
8.5 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:N/I:P/A:C
9.1 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
7.1 High
AI Score
Confidence
High
0.007 Low
EPSS
Percentile
81.0%
The validateSignature method in the SAML2\Utils class in SimpleSAMLphp before 1.14.10 and simplesamlphp/saml2 library before 1.9.1, 1.10.x before 1.10.3, and 2.x before 2.3.3 allows remote attackers to spoof SAML responses or possibly cause a denial of service (memory consumption) by leveraging improper conversion of return values to boolean.
Affected configurations
| CPE | Name | Operator | Version |
|---|---|---|---|
| simplesamlphp/saml2 | lt | 2.3.3 | |
| simplesamlphp/saml2 | lt | 1.9.1 | |
| simplesamlphp/saml2 | lt | 1.8.1 | |
| simplesamlphp/saml2 | lt | 1.10.3 |
References
Related
8.5 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:N/I:P/A:C
9.1 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
7.1 High
AI Score
Confidence
High
0.007 Low
EPSS
Percentile
81.0%