Reachable Assertion in XMLSecLibs and SimpleSAMLphp - CVE-2019-3465

CSH
CYBERSECURITY HELP
Sign In REGISTER
 
Main Vulnerability Database Vulnerabilities #VU22596

Reachable Assertion in XMLSecLibs and SimpleSAMLphp - CVE-2019-3465

Published: November 7, 2019


Vulnerability identifier: #VU22596
CSH Severity: Medium
CVSS v4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2019-3465
CWE-ID: CWE-617
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to bypass authentication.

The vulnerability exists due to an assertion failure when processing signatures, related to XPath expression "./secdsig:SignedInfo/secdsig:Reference". A remote attacker with ability to retrieve IdP can impersonate any user i the application.

Successful exploitation of the vulnerability may allow an attacker to gain access to sensitive information or compromise the affected application.


Affected software

XMLSecLibs
SimpleSAMLphp
Tenable.sc
simplesamlphp (Debian package)
php-robrichards-xmlseclibs1
php-robrichards-xmlseclibs
php-robrichards-xmlseclibs3
Fedora

How to mitigate CVE-2019-3465

Install updates from vendor's website.

XMLSecLibs - addressed in versions 2.1.1, 3.0.4
SimpleSAMLphp - update to 1.17.7
Tenable.sc - addressed in versions Patch 202001.1, 5.13.0
simplesamlphp (Debian package) - addressed in versions 1.14.11-1+deb9u2, 1.16.3-1+deb10u1
php-robrichards-xmlseclibs1 - addressed in versions 1.4.3-1.el6, 1.4.3-1.el7, 1.4.3-1.fc30, 1.4.3-1.fc31, 1.4.3-1.fc32
php-robrichards-xmlseclibs - addressed in versions 2.1.1-1.el6, 2.1.1-1.el7, 2.1.1-1.fc29, 2.1.1-1.fc30, 2.1.1-1.fc31
php-robrichards-xmlseclibs3 - addressed in versions 3.0.4-1.el7, 3.0.4-1.fc29, 3.0.4-1.fc30, 3.0.4-1.fc31

External References

Related Security Bulletins