CVE-2021-26471 Unauthenticated remote command execution in Vembu products

Critical 9.8 Published Updated

Unauthenticated attackers can execute arbitrary shell commands via the http API in Vembu backup products.

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-2021-26471?

CVE-2021-26471 is a critical command injection vulnerability in n/a, published on 8 Jun 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

In VembuBDR before 4.2.0.1 and VembuOffsiteDR before 4.2.0.1, the http API located at /sgwebservice_o.php accepts a command argument. Using this command argument an unauthenticated attacker can execute arbitrary shell commands.

Which versions are affected by CVE-2021-26471?

It affects 2 products.

Products include Vembu Bdr Suite, Vembu Offsite Dr.

How do I fix CVE-2021-26471?

No fix has been published for CVE-2021-26471 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-2021-26471 being exploited?

There is no known exploitation of CVE-2021-26471 in the wild and no public exploit code.

Sources

Also known as GHSA-rpcc-jvgm-8vrr.

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