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Vulnerability record · CVE-2018-1163 · published 8 February 2018

CVE-2018-1163: Quest netvault backup improper authentication vulnerability

Quest · Netvault Backup

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.

9.8 CVSS 3.0 Critical EPSS 16% · top 3.2% CWE-287 · Improper authentication
9.8CVSS 3.0 base score, v2 10.0
16%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

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.

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://zerodayinitiative.com/advisories/ZDI-18-006 Third Party AdvisoryVDB Entry
https://zerodayinitiative.com/advisories/ZDI-18-006 Third Party AdvisoryVDB Entry

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2017-17655Quest netvault backup sql injection vulnerabilityThis vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Quest NetVault Backup 11.3.0.12. Authentication i…EPSS 3.9%9.8CVE-2017-17656Quest netvault backup sql injection vulnerabilityThis vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Quest NetVault Backup 11.3.0.12. Authentication i…EPSS 3.9%9.8CVE-2017-17657Quest netvault backup sql injection vulnerabilityThis vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Quest NetVault Backup 11.3.0.12. Authentication i…EPSS 3.9%9.8CVE-2017-17658Quest netvault backup sql injection vulnerabilityThis vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Quest NetVault Backup 11.3.0.12. Authentication i…EPSS 3.9%9.8CVE-2017-17659Quest netvault backup sql injection vulnerabilityThis vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Quest NetVault Backup 11.3.0.12. Authentication i…EPSS 3.9%9.8CVE-2018-1161Quest NetVault Backup nvwsworker.exe stack buffer overflowQuest NetVault Backup 11.2.0.13 contains a stack-based buffer overflow in nvwsworker.exe when it parses the boundary header of a multipart request, b…EPSS 67%analysed9.8CVE-2017-17412Quest netvault backup sql injection vulnerabilityThis vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Quest NetVault Backup 11.3.0.12. Authentication i…EPSS 3.9%9.8CVE-2017-17413Quest netvault backup sql injection vulnerabilityThis vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Quest NetVault Backup 11.3.0.12. Authentication i…EPSS 3.9%

Source: NIST National Vulnerability Database (record CVE-2018-1163), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.