Tenable.sc update for SimpleSAMLPHP

1) Reachable Assertion

EUVDB-ID: #VU22596

Risk: Medium

CVSSv4.0: 1.3 [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/E:U/U:Green]

CVE-ID: CVE-2019-3465

CWE-ID: CWE-617 - Reachable Assertion

Exploit availability: No

Description

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.

Mitigation

Install patch from vendor's website.

Vulnerable software versions

Tenable.sc: Patch 201906.1 - 5.12.0

CPE2.3

• cpe:2.3:a:tenable_network_security:tenable.sc:Patch 201906.1:*:*:*:*:*:*:*
• cpe:2.3:a:tenable_network_security:tenable.sc:Patch 201911.2:*:*:*:*:*:*:*
• cpe:2.3:a:tenable_network_security:tenable.sc:5.9.0:*:*:*:*:*:*:*

External links

https://www.tenable.com/security/tns-2020-01-0

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.