CVE-2019-18284 Missing authorization in SPPA-T3000 Application Server

Critical 9.8 Published Updated

Unauthenticated access to the AdminService allows attackers to retrieve password hashes and modify user passwords on the SPPA-T3000 Application Server.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2019-18284?

CVE-2019-18284 is a critical missing authorization vulnerability in Siemens SPPA-T3000 Application Server, published on 12 Dec 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A vulnerability has been identified in SPPA-T3000 Application Server (All versions < Service Pack R8.2 SP2). The AdminService is available without authentication on the Application Server. An attacker can use methods exposed via this interface to receive password hashes of other users and to change user passwords. Please note that an attacker needs to have access to the Application Highway in order to exploit this vulnerability. At the time of advisory publication no public exploitation of this security vulnerability was known.

Weakness: CWE-306, CWE-287

Which versions are affected by CVE-2019-18284?

It affects 1 product.

Products include Siemens Sppa-T3000 Application Server.

How do I fix CVE-2019-18284?

No fix has been published for CVE-2019-18284 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2019-18284 being exploited?

There is no known exploitation of CVE-2019-18284 in the wild and no public exploit code.

Sources

Also known as GHSA-f3r5-9r3j-243r.

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