THREATPORT/VULNERABILITY/CVE-2018-1163
CRITICAL SEVERITY

CVE-2018-1163

Netvault Backup vulnerability

CVSS
9.8
EPSS
16.0%
EPSS pct
97th
Exploited
No known
This vulnerability allows remote attackers to bypass authentication on vulnerable installations of Quest NetVault Backup 11.2.0.13. The specific flaw exists within JSON RPC Request handling. By setting the checksession parameter to a specific value, it is possible to bypass authentication to critical functions. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of SYSTEM. Was ZDI-CAN-4752.
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)
  • CWE-287 — Improper Authentication
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 16.0% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 97% of all scored CVEs.

Check your external exposure to CVE-2018-1163

  • Confirm whether Quest Netvault Backup is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2018-1163.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2018-1163

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2018-1163 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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