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Vulnerability record · CVE-2018-17283 · published 21 September 2018

CVE-2018-17283: ManageEngine OpManager oputilsServlet missing authentication enables admin creation and SQL injection

Zohocorp · Manageengine Opmanager

Zoho ManageEngine OpManager before 12.3 Build 123196 does not require authentication for /oputilsServlet requests. An unauthenticated attacker can call /oputilsServlet?action=getAPIKey to obtain an API key and then use it against Firewall Analyzer to add an admin user or perform SQL injection via the setManaged name parameter.

7.5 CVSS 3.0 High EPSS 66% · top 0.7% CWE-89 · SQL injection
7.5CVSS 3.0 base score, v2 5.0
66%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

Zoho ManageEngine OpManager before 12.3 Build 123196 does not require authentication for /oputilsServlet requests, as demonstrated by a /oputilsServlet?action=getAPIKey request that can be leveraged against Firewall Analyzer to add an admin user via /api/json/v2/admin/addUser or conduct a SQL Injection attack via the /api/json/device/setManaged name parameter.

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

Automated analysis

Generated by VULONE's analysis model from the NVD record, CISA KEV and EPSS data on 19 September 2026. Confidence: high.

high priorityUnauthenticated remote access can lead to admin account creation and SQL injection, with high EPSS and public exploit references despite no KEV listing.

What it is

Zoho ManageEngine OpManager before 12.3 Build 123196 does not require authentication for /oputilsServlet requests. An unauthenticated attacker can call /oputilsServlet?action=getAPIKey to obtain an API key and then use it against Firewall Analyzer to add an admin user or perform SQL injection via the setManaged name parameter.

Impact

An attacker can gain administrative access to Firewall Analyzer by creating an admin account, or execute SQL injection to read or alter backend data. The CVSS vector rates confidentiality impact as high, with no integrity or availability impact recorded.

Attack surface

Reachable over the network via HTTP requests to /oputilsServlet with no authentication and no user interaction required. The flaw is in the OpManager servlet and is leveraged against Firewall Analyzer endpoints.

Exploitation

CISA KEV does not list this CVE, but EPSS is 0.66347 (99.245th percentile) and public exploit references are tagged Exploit, indicating high likelihood of exploitation.

What to do

  • Upgrade ManageEngine OpManager to 12.3 Build 123196 or later.
  • Restrict network access to /oputilsServlet and related management endpoints to trusted hosts only.
  • Rotate any API keys and review Firewall Analyzer admin accounts for unauthorized additions.
  • Apply input validation or WAF rules blocking SQL injection patterns on the setManaged name parameter.
  • Monitor vendor advisories for additional patches affecting OpManager and Firewall Analyzer.

Detection

  • Alert on unauthenticated requests to /oputilsServlet, especially action=getAPIKey.
  • Monitor for POST requests to /api/json/v2/admin/addUser and unexpected admin account creation.
  • Inspect /api/json/device/setManaged name parameter for SQL injection payloads.
  • Review web server and application logs for anomalous access to OpManager and Firewall Analyzer API endpoints.

This assessment is produced automatically and is not human-reviewed. Verify against the vendor advisory before acting on it.

Affected products

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

References

LinkTags
https://github.com/x-f1v3/ForCve/issues/4 ExploitThird Party Advisory
https://www.manageengine.com/network-monitoring/help/read-me.html Vendor Advisory
https://github.com/x-f1v3/ForCve/issues/4 ExploitThird Party Advisory
https://www.manageengine.com/network-monitoring/help/read-me.html Vendor Advisory

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Related vulnerabilities

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

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Source: NIST National Vulnerability Database (record CVE-2018-17283), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.