CVE-2018-1161 Memory corruption in Quest NetVault Backup

Critical 9.8 Published 8 Feb 2018 Updated 5 Aug 2024

Remote attackers can execute arbitrary code with SYSTEM privileges via a stack-based buffer overflow in the backup server's web worker.

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-2018-1161?

CVE-2018-1161 is a critical memory corruption vulnerability in Quest NetVault Backup, published on 8 Feb 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Quest NetVault Backup 11.2.0.13. Authentication is not required to exploit this vulnerability. The specific flaw exists within nvwsworker.exe. When parsing the boundary header of a multipart request, the process does not properly validate the length of user-supplied data prior to copying it to a stack-based buffer. An attacker can leverage this vulnerability to execute code under the context of SYSTEM. Was ZDI-CAN-4215.

Weakness: CWE-20, CWE-121

Which versions are affected by CVE-2018-1161?

It affects 1 product.

Products include Quest Netvault Backup.

How do I fix CVE-2018-1161?

No fix has been published for CVE-2018-1161 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2018-1161 being exploited?

There is no known exploitation of CVE-2018-1161 in the wild and no public exploit code.

Sources

Also known as GHSA-cvp9-qw5g-8953.