Input validation error in SimpleSAMLphp - CVE-2016-9955
Published: February 17, 2017 / Updated: July 18, 2020
Vulnerability identifier: #VU31447
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2016-9955
CWE-ID: CWE-20
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: SimpleSAMLphp
Affected software:
SimpleSAMLphp
SimpleSAMLphp
Detailed vulnerability description
The vulnerability allows a local non-authenticated attacker to #BASIC_IMPACT#.
The SimpleSAML_XML_Validator class constructor in SimpleSAMLphp before 1.14.11 might allow remote attackers to spoof signatures on SAML 1 responses or possibly cause a denial of service (memory consumption) by leveraging improper conversion of return values to boolean.
How to mitigate CVE-2016-9955
Install update from vendor's website.