Remote code execution in Zoho ManageEngine Desktop Central

1) Deserialization of Untrusted Data

EUVDB-ID: #VU25811

Risk: High

CVSSv3.1: 9.4 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:H/RL:O/RC:C]

CVE-ID: CVE-2020-10189

CWE-ID: CWE-502 - Deserialization of Untrusted Data

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to insecure input validation when processing serialized data within the getChartImage() function in the FileStorage class (the issue is related to CewolfServlet and MDMLogUploaderServlet servlets). A remote non-authenticated attacker can pass specially crafted data to the application and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Zoho ManageEngine Desktop Central: 10.0.200 - 10.0.512

CPE2.3

• cpe:2.3:a:zohocorp:zoho_manageengine_desktop_central :10.0.512:*:*:*:*:*:*:*
• cpe:2.3:a:zohocorp:zoho_manageengine_desktop_central :10.0.511:*:*:*:*:*:*:*
• cpe:2.3:a:zohocorp:zoho_manageengine_desktop_central :10.0.510:*:*:*:*:*:*:*

External links

http://srcincite.io/advisories/src-2020-0011/
http://srcincite.io/pocs/src-2020-0011.py.txt

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?

Yes. This vulnerability is being exploited in the wild.