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CVE-2019-18283 Deserialization in SPPA-T3000 Application Server

Critical 9.8 Published Updated

An attacker with network access can achieve remote code execution on the SPPA-T3000 Application Server via unsafe deserialization in the unauthenticated AdminService.

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-2019-18283?

CVE-2019-18283 is a critical unsafe deserialization 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 gain remote code execution by sending specifically crafted objects to one of its functions. 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-502

Which versions are affected by CVE-2019-18283?

It affects 1 product.

Products include Siemens Sppa-T3000 Application Server.

How do I fix CVE-2019-18283?

No fix has been published for CVE-2019-18283 yet. Limit exposure of the affected software until one is available.

Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.

Is CVE-2019-18283 being exploited?

There is no known exploitation of CVE-2019-18283 in the wild and no public exploit code.

Sources

Also known as GHSA-gjq4-c23m-6wgc.

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