PT-2017-3512 · Quest · Quest Netvault Backup

Rgod · Published 2017-12-06 · Updated 2019-10-09 · CVE-2018-1161

Positive Technologies (AI Summary)

CVSS v3.1

10

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Quest NetVault Backup version 11.2.0.13

Description This issue allows remote attackers to execute arbitrary code on vulnerable installations. Authentication is not required to exploit this issue. The specific flaw exists within the nvwsworker.exe file. 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 issue to execute code under the context of SYSTEM.

Recommendations For Quest NetVault Backup version 11.2.0.13, consider disabling the nvwsworker.exe process until a patch is available to prevent exploitation. Restrict access to the vulnerable service to minimize the risk of exploitation. Avoid using the multipart request boundary header until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this issue.

Fix

Stack Overflow

RCE

Weakness Enumeration

CWE-121

CWE-20

Related Identifiers

BDU:2018-00363

CVE-2018-1161

ZDI-18-004

Affected Products

Quest Netvault Backup

References · 4

• https://osv.dev/vulnerability/CVE-2018-1161 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2018-1161 · Security Note
• https://zerodayinitiative.com/advisories/ZDI-18-004 · Security Note
• https://bdu.fstec.ru/vul/2018-00363 · Security Note