Vulnerability identifier: #VU51384

Vulnerability risk: Medium

CVSSv3.1: 6.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2021-20078

CWE-ID: CWE-22

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Zoho ManageEngine OpManager
Client/Desktop applications / Other client software

Vendor: Zoho Corporation

Description

The vulnerability allows a remote attacker to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences in the Spark Gateway component. A remote attacker can send a specially crafted HTTP request and delete arbitrary files on the system.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Zoho ManageEngine OpManager: 12.5 125346

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External links
http://www.manageengine.com/network-monitoring/help/read-me-complete.html#
http://www.tenable.com/security/research/tra-2021-10

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.