CVE-2019-3984 Command injection in Blink XT2 Sync Module firmware

Critical 9.8 Published 31 Dec 2019 Updated 4 Aug 2024

Remote attackers can execute arbitrary commands on Blink XT2 Sync Modules due to unsanitized input during update script retrieval.

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-2019-3984?

CVE-2019-3984 is a critical command injection vulnerability in Amazon Blink XT2 Sync Module firmware, published on 31 Dec 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Blink XT2 Sync Module firmware prior to 2.13.11 allows remote attackers to execute arbitrary commands on the device due to improperly sanitized input when the device retrieves updates scripts from the internet.

Weakness: CWE-78

Which versions are affected by CVE-2019-3984?

It affects 1 product.

Products include Amazon Blink Xt2 Sync Module Firmware.

How do I fix CVE-2019-3984?

No fix has been published for CVE-2019-3984 yet. Limit exposure of the affected software until one is available.

Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.

Is CVE-2019-3984 being exploited?

There is no known exploitation of CVE-2019-3984 in the wild and no public exploit code.

Sources

Also known as GHSA-xpcw-jp98-6h3c.