Your RSA-2048 keys break in 2030. Find every one of them before attackers do.

CVE-2018-12998

MEDIUM

CVE-2018-12998 is a medium-severity (CVSS 6.1) Cross-site Scripting (XSS) vulnerability in zohocorp firewall analyzer. 4 public exploit references exist, so weaponization risk is real. O3 Security detects and blocks CVE-2018-12998 exploitation at runtime via eBPF exploit-chain detection and L7 egress monitoring, even on unpatched systems.

A reflected Cross-site scripting (XSS) vulnerability in Zoho ManageEngine Netflow Analyzer before build 123137, Network Configuration Manager before build 123128, OpManager before build…

Published
Jun 29, 2018
Updated
Jun 17, 2026
Affected
0 pkgs
Patched
None yet
Exploits
4 known

Description

A reflected Cross-site scripting (XSS) vulnerability in Zoho ManageEngine Netflow Analyzer before build 123137, Network Configuration Manager before build 123128, OpManager before build 123148, OpUtils before build 123161, and Firewall Analyzer before build 123147 allows remote attackers to inject arbitrary web script or HTML via the parameter 'operation' to /servlet/com.adventnet.me.opmanager.servlet.FailOverHelperServlet.

Affected Products

5 products · 5 configurations
Application
firewall analyzerzohocorp
all
Application
manageengine netflow analyzerzohocorp
all
Application
manageengine network configuration managerzohocorp
all
Application
manageengine opmanagerzohocorp
all
Application
manageengine oputilszohocorp
all
Exploits & PoCs
4

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

Detection & mitigation playbook

Vendor / appliance
  1. Detect

    Inventory every zohocorp firewall analyzer deployment and check each version against the affected-products list above. Because the exploit targets the running system rather than your application code, also watch for exploitation at the network and runtime layer — O3 flags the exploit behaviour from runtime telemetry and egress traffic even before a vulnerable build is confirmed.

  2. Remediation status

    No patch has shipped for CVE-2018-12998 yet — track the zohocorp firewall analyzer advisory for a fixed release and apply the workarounds below in the meantime.

  3. Mitigate without a patch

    Cut exposure now: restrict the management/admin interface to trusted networks, segment the device, and apply the vendor's recommended configuration mitigations and any WAF/IPS signature. O3's runtime protection blocks the exploit chain at execution, holding the line on unpatched or end-of-life systems until you can patch.

  4. How O3 protects you

    O3 detects and blocks CVE-2018-12998 exploitation at runtime: eBPF exploit-chain detection, plus L7 egress monitoring that catches the post-exploitation callback and severs the attacker's outbound channel.

Tailored to CVE-2018-12998. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

A reflected Cross-site scripting (XSS) vulnerability in Zoho ManageEngine Netflow Analyzer before build 123137, Network Configuration Manager before build 123128, OpManager before build 123148, OpUtils before build 123161, and Firewall Analyzer before build 123147 allows remote attackers to inject arbitrary web script or HTML via the parameter 'operation' to /servlet/com.adventnet.me.opmanager.servlet.FailOverHelperServlet.
O3 Security · Runtime Protection

Is CVE-2018-12998 being exploited in your environment?

O3's eBPF runtime sensors and L7 egress monitoring detect and block the CVE-2018-12998 exploit chain at execution — protecting unpatched and end-of-life systems until the vendor patch is applied.