Inadequate Encryption Strength Affecting simplesamlphp/simplesamlphp package, versions >=1.14.0, <1.14.12
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published26 Apr 2024
- disclosed17 May 2022
- creditChris Czub
Introduced: 17 May 2022
CVE-2017-12871 (opens in a new tab)How to fix?
Upgrade simplesamlphp/simplesamlphp to version 1.14.12 or higher.
Overview
simplesamlphp/simplesamlphp is a PHP implementation of a SAML 2.0 service provider and identity provider, also compatible with Shibboleth 1.3 and 2.0.
Affected versions of this package are vulnerable to Inadequate Encryption Strength due to the aesEncrypt method in lib/SimpleSAML/Utils/Crypto.php. An attacker can bypass the encryption protection mechanism by leveraging use of the first 16 bytes of the secret key as the initialization vector (IV).