CVE-2017-12869
HighSummary
The multiauth module in SimpleSAMLphp version 1.14.13 and earlier allows remote attackers to bypass authentication context restrictions and use an authentication source defined in config/authsources.php due to improper validation of user input.
Risk Assessment
Attackers may gain access to the system without proper authorization, potentially leading to unauthorized access to sensitive data.
Recommendation
It is recommended to update SimpleSAMLphp to the latest version to mitigate this vulnerability and implement additional input validation mechanisms.
Other vulnerabilities in SimpleSAMLphp
See all- CVE-2017-12873Critical
SimpleSAMLphp versions 1.7.0 through 1.14.10 may allow attackers to obtain sensitive information, gain unauthorized access, or have unspecified other impacts by leveraging incorrect persistent NameID generation when an Identity Provider (IdP) is misconfigured.
- CVE-2017-12868Critical
The secureCompare method in lib/SimpleSAML/Utils/Crypto.php in SimpleSAMLphp version 1.14.13 and earlier, when used with PHP before 5.6, allows attackers to conduct session fixation attacks or possibly bypass authentication due to missing character conversions before an XOR operation.
- CVE-2026-49284High
Information disclosure vulnerability in SimpleSAMLphp before 1.18.6 and in versions 2.x before 2.4.7 and 2.5.2. An attacker can exploit missing InResponseTo validation in signed assertions to bind a response from one trusted IdP to SP state created for another IdP, bypassing routing mechanisms.
Original NVD description (English source)
The multiauth module in SimpleSAMLphp 1.14.13 and earlier allows remote attackers to bypass authentication context restrictions and use an authentication source defined in config/authsources.php via vectors related to improper validation of user input.