CVE-2018-19878 Denial of service in n/a

Medium 6.5 Published Updated

An attacker can exhaust device memory by repeatedly logging in without logging out, causing a denial of service on Teltonika RTU950 devices.

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

What is CVE-2018-19878?

CVE-2018-19878 is a medium-severity denial of service vulnerability in n/a, published on 19 Jun 2019. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

An issue was discovered on Teltonika RTU950 R_31.04.89 devices. The application allows a user to login without limitation. For every successful login request, the application saves a session. A user can re-login without logging out, causing the application to store the session in memory. Exploitation of this vulnerability will increase memory use and consume free space.

Weakness: CWE-416

Which versions are affected by CVE-2018-19878?

It affects 1 product.

Products include Teltonika Rut950 Firmware.

How do I fix CVE-2018-19878?

No fix has been published for CVE-2018-19878 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2018-19878 being exploited?

There is no known exploitation of CVE-2018-19878 in the wild and no public exploit code.

Sources

Also known as GHSA-vwc5-x3cm-cc9v.

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