THREATPORT/VULNERABILITY/CVE-2017-17420
CRITICAL SEVERITY

CVE-2017-17420

Netvault Backup vulnerability

CVSS
9.8
EPSS
48.2%
EPSS pct
99th
Exploited
No known
This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Quest NetVault Backup 11.3.0.12. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of NVBUJobCountHistory Get method requests. The issue results from the lack of proper validation of a user-supplied string before using it to construct SQL queries. An attacker can leverage this vulnerability to execute code in the context of the underlying database. Was ZDI-CAN-4231.
Affected vendor
Quest
Affected product
Netvault Backup
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness type (CWE)
Published
2018-02-08

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 48.2% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it among the most exploited CVEs currently tracked.

Check your external exposure to CVE-2017-17420

  • Confirm whether Quest Netvault Backup is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2017-17420.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2017-17420

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2017-17420 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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