The SimpleSAMLphp SAML2 library incorrectly verifies signatures for HTTP-Redirect binding

Summary There's a signature confusion attack in the HTTPRedirect binding. An attacker with any signed SAMLResponse via the HTTP-Redirect binding can cause the application to accept an unsigned message. I believe that it exists for v4 only. I have not yet developed a PoC. V5 is well designed and...

PT-2025-10892

Name of the Vulnerable Software and Affected Versions: SimpleSAMLphp SAML2 library versions prior to 4.17.0 and 5.0.0-alpha.20 Description: The issue is related to a signature confusion attack in the HTTPRedirect binding. An attacker with any signed SAMLResponse via the HTTP-Redirect binding can...

CVE-2024-52806

SimpleSAMLphp SAML2 library is a PHP library for SAML2 related functionality. When loading an untrusted XML document, for example the SAMLResponse, it's possible to induce an XXE. This vulnerability is fixed in 4.6.14 and 5.0.0-alpha.18...

XML External Entity (XXE) Injection

simplesamlphp is vulnerable to XML External Entity XXE injection. The vulnerability is due to improper handling of untrusted XML input, which allows attackers to exploit maliciously crafted XML documents, such as SAMLResponse, to access sensitive information or perform other malicious activities...

DEBIAN-CVE-2024-52596

SimpleSAMLphp xml-common is a common classes for handling XML-structures. When loading an untrusted XML document, for example the SAMLResponse, it's possible to induce an XXE. This vulnerability is fixed in 1.19.0...

DEBIAN-CVE-2018-7644

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 th...

CVE-2018-6521

The sqlauth module in SimpleSAMLphp before 1.15.2 relies on the MySQL utf8 charset, which truncates queries upon encountering four-byte characters. There might be a scenario in which this allows remote attackers to bypass intended access restrictions...

CVE-2017-12871

The aesEncrypt method in lib/SimpleSAML/Utils/Crypto.php in SimpleSAMLphp 1.14.x through 1.14.11 makes it easier for context-dependent attackers to bypass the encryption protection mechanism by leveraging use of the first 16 bytes of the secret key as the initialization vector IV...

DEBIAN-CVE-2017-12868

The secureCompare method in lib/SimpleSAML/Utils/Crypto.php in SimpleSAMLphp 1.14.13 and earlier, when used with PHP before 5.6, allows attackers to conduct session fixation attacks or possibly bypass authentication by leveraging missing character conversions before an XOR operation...

UBUNTU-CVE-2017-12867

The SimpleSAMLAuthTimeLimitedToken class in SimpleSAMLphp 1.14.14 and earlier allows attackers with access to a secret token to extend its validity period by manipulating the prepended time offset...

CVE-2012-0040

Cross-site scripting XSS vulnerability in modules/core/www/nocookie.php in SimpleSAMLphp 1.8.1 and possibly other versions before 1.8.2 allows remote attackers to inject arbitrary web script or HTML via the retryURL parameter...