The FailOverHelperServlet (aka FailServlet) servlet in ZOHO ManageEngine Applications Manager before 11.9 build 11912, OpManager 8 through 1
The FailOverHelperServlet (aka FailServlet) servlet in ZOHO ManageEngine Applications Manager before 11.9 build 11912, OpManager 8 through 11.5 build 11400, and IT360 10.5 and earlier does not properly restrict access, which allows remote attackers and remote authenticated users to (1) read arbitrary files via the fileName parameter in a copyfile operation or (2) obtain sensitive information via a directory listing in a listdirectory operation to servlet/FailOverHelperServlet.
- Published
- Feb 8, 2020
- Updated
- Jun 16, 2026
- EPSS
- 83.4% · 100th percentile
- CWE
- CWE-200
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Report tools
Action score
55
Plan
Add it to your regular patch cycle.
- CVSS
- 30 / 40 · 7.5 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 25 / 30 · 83.4%
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| zohocorp | manageengine applications manager | cpe:2.3:a:zohocorp:manageengine_applications_manager |
| zohocorp | manageengine it360 | cpe:2.3:a:zohocorp:manageengine_it360 |
| zohocorp | manageengine opmanager | cpe:2.3:a:zohocorp:manageengine_opmanager |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- zohocorp manageengine applications managerup to 11.9 inclusive
- zohocorp manageengine it360up to 10.5 inclusive
- zohocorp manageengine opmanager8 and later · up to 11.5 inclusive
Same product
zohocorp: all recordsOther highest-scoring records for the same primary product.
- CVE-2018-7890A remote code execution issue was discovered in Zoho ManageEngine Applications Manager before 13.6 (build 13640).63This week
- CVE-2023-28341Stored Cross site scripting (XSS) vulnerability in Zoho ManageEngine Applications Manager through 16340 allows an unauthenticated user to in54Plan
- CVE-2018-13050A SQL Injection vulnerability exists in Zoho ManageEngine Applications Manager 13.x before build 13800 via the j_username parameter in a /j_51Plan
- CVE-2020-16267Zoho ManageEngine Applications Manager version 14740 and prior allows an authenticated SQL Injection via a crafted jsp request in the RCA mo48Plan
- CVE-2020-15927Zoho ManageEngine Applications Manager version 14740 and prior allows an authenticated SQL Injection via a crafted jsp request in the SAP mo48Plan
- CVE-2016-9498ManageEngine Applications Manager 12 and 13, allows unserialization of unsafe Java objects45Plan
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
No fix version is recorded for this entry. Check the references for vendor advisories.
Exploit status
Weaponized
A ready exploit tool or active in-the-wild use is known for this vulnerability. This should be your top priority.
Evidence
- Metasploit module ×2
- Exploit-DB entry ×1
Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.
| Source | Kind | Date |
|---|---|---|
| Exploit-DB entry | webapps | 2015-02-09 |
| Metasploit module | auxiliary/admin/http/manageengine_dir_listingManageEngine Multiple Products Arbitrary Directory Listingauxiliary | 2015-01-28 |
| Metasploit module | auxiliary/admin/http/manageengine_file_downloadManageEngine Multiple Products Arbitrary File Downloadauxiliary | 2015-01-28 |
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
- Metasploit-1838 d
- First PoC-1826 d
- Published
- TodaySep 30, 2026+2426 d
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- Anyone who can reach it over the internet can trigger it.
- No account or password is required.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- high · data can be read
- Integrity
- none
- Availability
- none
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- None
- Availability impact
- None
Weakness class (CWE)
CWE-200 · Exposure of Sensitive Information to an Unauthorized ActorCVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
nvd-primary
Root cause
The extension requests broader permissions than its function needs and sends the data it collects out for purposes beyond its stated function.
The bug in code
The whole CWE-200 classA representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.
Vulnerable
{ "permissions": ["tabs", "<all_urls>"], "background": { "service_worker": "analytics.js" }}Fixed
{ "permissions": ["activeTab"], "host_permissions": ["https://yildiz.example/*"]}Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Attack patterns (CAPEC)
- ExcavationCAPEC-116likelihood: High · Medium
- Subverting Environment Variable ValuesCAPEC-13likelihood: High · Very High
- FootprintingCAPEC-169likelihood: High · Very Low
- Exploiting Trust in ClientCAPEC-22likelihood: High · High
- FingerprintingCAPEC-224likelihood: High · Very Low
- ICMP Echo Request PingCAPEC-285likelihood: Medium · Low
- TCP SYN ScanCAPEC-287Low
- Enumerate Mail Exchange (MX) RecordsCAPEC-290Low
ATT&CK techniques
- System Service DiscoveryT1007
- System Network Configuration DiscoveryT1016
- Remote System DiscoveryT1018
- System Owner/User DiscoveryT1033
- Masquerading: Match Legitimate Name or LocationT1036.005
- Network Service ScanningT1046
- System Network Connections DiscoveryT1049
- Process DiscoveryT1057
- Permission Groups DiscoveryT1069
- System Information DiscoveryT1082
- File and Directory DiscoveryT1083
- Account DiscoveryT1087
- Multi-Factor Authentication InterceptionT1111
- Peripheral Device DiscoveryT1120
- System Time DiscoveryT1124
- Access Token Manipulation:Token Impersonation/TheftT1134.001
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpChange log
No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.
References
- www.securityfocus.com/archive/1/archive/1/534575/100/0/threaded
- exchange.xforce.ibmcloud.com/vulnerabilities/100554
- raw.githubusercontent.com/pedrib/PoC/master/ManageEngine/me_failservlet.txt
Vendor advisories and official records. Exploit/PoC links are deliberately left out.