CVE-2021-20147
First published: Mon Jan 03 2022(Updated: )
ManageEngine ADSelfService Plus below build 6116 contains an observable response discrepancy in the UMCP operation of the ChangePasswordAPI. This allows an unauthenticated remote attacker to determine whether a Windows domain user exists.
Credit: vulnreport@tenable.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Zohocorp Manageengine Adselfservice Plus | <=6.0 | |
| Zohocorp Manageengine Adselfservice Plus | =6.1 | |
| Zohocorp Manageengine Adselfservice Plus | =6.1-6100 | |
| Zohocorp Manageengine Adselfservice Plus | =6.1-6101 | |
| Zohocorp Manageengine Adselfservice Plus | =6.1-6102 | |
| Zohocorp Manageengine Adselfservice Plus | =6.1-6103 | |
| Zohocorp Manageengine Adselfservice Plus | =6.1-6104 | |
| Zohocorp Manageengine Adselfservice Plus | =6.1-6105 | |
| Zohocorp Manageengine Adselfservice Plus | =6.1-6106 | |
| Zohocorp Manageengine Adselfservice Plus | =6.1-6107 | |
| Zohocorp Manageengine Adselfservice Plus | =6.1-6108 | |
| Zohocorp Manageengine Adselfservice Plus | =6.1-6109 | |
| Zohocorp Manageengine Adselfservice Plus | =6.1-6110 | |
| Zohocorp Manageengine Adselfservice Plus | =6.1-6111 | |
| Zohocorp Manageengine Adselfservice Plus | =6.1-6112 | |
| Zohocorp Manageengine Adselfservice Plus | =6.1-6113 | |
| Zohocorp Manageengine Adselfservice Plus | =6.1-6114 | |
| Zohocorp Manageengine Adselfservice Plus | =6.1-6115 |
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Reference Links
Frequently Asked Questions
What is CVE-2021-20147?
CVE-2021-20147 is a vulnerability in ManageEngine ADSelfService Plus below build 6116 that allows an unauthenticated remote attacker to determine whether a Windows domain user exists.
What is the severity of CVE-2021-20147?
The severity of CVE-2021-20147 is medium, with a severity value of 5.3.
How does CVE-2021-20147 affect ManageEngine ADSelfService Plus?
CVE-2021-20147 affects ManageEngine ADSelfService Plus below build 6116.
How can an attacker exploit CVE-2021-20147?
An attacker can exploit CVE-2021-20147 by sending requests to the UMCP operation of the ChangePasswordAPI and observing the response discrepancy to determine the existence of a Windows domain user.
Where can I find more information about CVE-2021-20147?
You can find more information about CVE-2021-20147 at the following link: [CVE-2021-20147](https://www.tenable.com/security/research/tra-2021-52)
- collector/nvd-index
- agent/weakness
- agent/severity
- agent/author
- agent/type
- agent/references
- agent/tags
- agent/event
- agent/description
- agent/last-modified-date
- agent/softwarecombine
- agent/first-publish-date
- collector/mitre-cve
- source/MITRE
- vendor/zohocorp
- canonical/zohocorp manageengine adselfservice plus
- version/zohocorp manageengine adselfservice plus/6.0
- version/zohocorp manageengine adselfservice plus/6.1
- version/zohocorp manageengine adselfservice plus/6.1-6100
- version/zohocorp manageengine adselfservice plus/6.1-6101
- version/zohocorp manageengine adselfservice plus/6.1-6102
- version/zohocorp manageengine adselfservice plus/6.1-6103
- version/zohocorp manageengine adselfservice plus/6.1-6104
- version/zohocorp manageengine adselfservice plus/6.1-6105
- version/zohocorp manageengine adselfservice plus/6.1-6106
- version/zohocorp manageengine adselfservice plus/6.1-6107
- version/zohocorp manageengine adselfservice plus/6.1-6108
- version/zohocorp manageengine adselfservice plus/6.1-6109
- version/zohocorp manageengine adselfservice plus/6.1-6110
- version/zohocorp manageengine adselfservice plus/6.1-6111
- version/zohocorp manageengine adselfservice plus/6.1-6112
- version/zohocorp manageengine adselfservice plus/6.1-6113
- version/zohocorp manageengine adselfservice plus/6.1-6114
- version/zohocorp manageengine adselfservice plus/6.1-6115