#VU23705 Improper Authentication in SPPA-T3000 Application Server - CVE-2019-18284

Vulnerability identifier: #VU23705

Vulnerability risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2019-18284

CWE-ID: CWE-287

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
SPPA-T3000 Application Server
Server applications / Application servers

Vendor: Siemens

Description

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to the AdminService is available without authentication on the Application Server. A remote attacker can use methods exposed via this interface to receive password hashes of other users and to change user passwords.

Note: An attacker needs to have access to the Application Highway in order to exploit this vulnerability

Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

SPPA-T3000 Application Server: All versions

---

External links
https://cert-portal.siemens.com/productcert/pdf/ssa-451445.pdf

---

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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