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Vulnerability record · CVE-2018-10239 · published 17 June 2019

CVE-2018-10239: Infoblox nios permissions and access controls vulnerability

Infoblox · Nios

A privilege escalation vulnerability in the "support access" feature on Infoblox NIOS 6.8 through 8.4.1 could allow a locally authenticated administrator to temporarily gain additional privileges on an affected device and perform actions within the super user scope. The vulnerability is due to a weakness in the "support access" password generation algorithm. A locally authenticated administrative user may be able to exploit this vulnerability if the "support access" feature is enabled, they know the support access code for the current session, and they know the algorithm to generate the support access password from the support access code. "Support access" is disabled by default. When enabled, the access will be automatically disabled (and support access code will expire) after the 24 hours.

6.7 CVSS 3.0 Medium EPSS 0.38% · top 70.7% CWE-264 · Permissions and access controls
6.7CVSS 3.0 base score, v2 7.2
0.38%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

A privilege escalation vulnerability in the "support access" feature on Infoblox NIOS 6.8 through 8.4.1 could allow a locally authenticated administrator to temporarily gain additional privileges on an affected device and perform actions within the super user scope. The vulnerability is due to a weakness in the "support access" password generation algorithm. A locally authenticated administrative user may be able to exploit this vulnerability if the "support access" feature is enabled, they know the support access code for the current session, and they know the algorithm to generate the support access password from the support access code. "Support access" is disabled by default. When enabled, the access will be automatically disabled (and support access code will expire) after the 24 hours.

CVSS:3.0/AV:L/AC:L/PR:H/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://community.infoblox.com/t5/Security-Blog/10427-NIOS-Privilege-Escalation-Vulnerability/ba-p/17309 Vendor Advisory
https://community.infoblox.com/t5/Security-Blog/10427-NIOS-Privilege-Escalation-Vulnerability/ba-p/17309 Vendor Advisory

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Related vulnerabilities

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

9.8CVE-2024-36047Infoblox nios improper input validation vulnerabilityInfoblox NIOS through 8.6.4 and 9.x through 9.0.3 has Improper Input Validation.EPSS 0.44%9.8CVE-2024-37566Infoblox nios improper access control vulnerabilityInfoblox NIOS through 8.6.4 has Improper Authentication for Grids.EPSS 0.46%9.8CVE-2024-36046Infoblox nios improper privilege management vulnerabilityInfoblox NIOS through 8.6.4 executes with more privileges than required.EPSS 0.41%9.1CVE-2024-37567Infoblox nios improper access control vulnerabilityInfoblox NIOS through 8.6.4 has Improper Access Control for Grids.EPSS 0.35%8.8CVE-2025-61880Infoblox nios deserialization of untrusted data vulnerabilityIn Infoblox NIOS through 9.0.7, insecure deserialization can result in remote code execution.EPSS 0.59%8.8CVE-2023-37249Infoblox nios os command injection vulnerabilityInfoblox NIOS through 8.5.1 has a faulty component that accepts malicious input without sanitization, resulting in shell access.EPSS 0.73%7.7CVE-2025-61879Infoblox nios improper access control vulnerabilityIn Infoblox NIOS through 9.0.7, a High-Privileged User Can Trigger an Arbitrary File Write via the Account Creation Mechanism.EPSS 0.27%6.5CVE-2020-15303Infoblox nios vulnerabilityInfoblox NIOS before 8.5.2 allows entity expansion during an XML upload operation, a related issue to CVE-2003-1564.EPSS 0.86%

Source: NIST National Vulnerability Database (record CVE-2018-10239), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.