CVE-2021-43038 Command injection in n/a

High 8.8 Published Updated

Attackers can escalate privileges from wguest to postgres via command injection in PostgreSQL triggers, requiring an upgrade to Kaseya Unitrends Backup Appliance.

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-2021-43038?

CVE-2021-43038 is a high-severity command injection vulnerability in n/a, published on 6 Dec 2021. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

An issue was discovered in Kaseya Unitrends Backup Appliance before 10.5.5. The wguest account could execute commands by injecting into PostgreSQL trigger functions. This allowed privilege escalation from the wguest user to the postgres user.

Weakness: CWE-74

Which versions are affected by CVE-2021-43038?

It affects 1 product.

Products include Kaseya Unitrends Backup.

How do I fix CVE-2021-43038?

No fix has been published for CVE-2021-43038 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-2021-43038 being exploited?

There is no known exploitation of CVE-2021-43038 in the wild and no public exploit code.

Sources

Also known as GHSA-6rjf-7wv7-gjwv.

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