CVE-2020-27654 Command injection in Synology Router Manager (SRM)

Critical 9.8 Published Updated

Remote attackers can execute arbitrary commands on Synology routers via specific TCP ports due to improper access control in the lbd service.

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-2020-27654?

CVE-2020-27654 is a critical command injection vulnerability in Synology Router Manager, published on 29 Oct 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Improper access control vulnerability in lbd in Synology Router Manager (SRM) before 1.2.4-8081 allows remote attackers to execute arbitrary commands via port (1) 7786/tcp or (2) 7787/tcp.

Weakness: CWE-269

Which versions are affected by CVE-2020-27654?

It affects 1 product.

Products include Synology Router Manager.

How do I fix CVE-2020-27654?

No fix has been published for CVE-2020-27654 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-2020-27654 being exploited?

There is no known exploitation of CVE-2020-27654 in the wild and no public exploit code.

All Synology Router Manager vulnerabilities

Sources

Also known as GHSA-6qq4-j9r6-gj4w.

Is CVE-2020-27654 in your software?

Upload an SBOM and sbomify checks it against every vulnerability here, every day.

Check your SBOMs for free