Improper access control in Zoho ManageEngine EventLog Analyzer

1) Improper access control

EUVDB-ID: #VU25643

Risk: Low

CVSSv3.1: 3.9 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C]

CVE-ID: CVE-2019-19774

CWE-ID: CWE-284 - Improper Access Control

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions. A remote attacker can bypass implemented security restrictions by running "select hostdetails from hostdetails" at the /event/runquery.do endpoint and recover the MD5 hashes of the accounts used to authenticate the ManageEngine platform to the managed machines on the network (most often administrative accounts).

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Zoho ManageEngine EventLog Analyzer: 9000 - 12100

CPE2.3

• cpe:2.3:a:zohocorp:zoho_manageengine_eventlog_analyzer:12100:*:*:*:*:*:*:*
• cpe:2.3:a:zohocorp:zoho_manageengine_eventlog_analyzer:12060:*:*:*:*:*:*:*
• cpe:2.3:a:zohocorp:zoho_manageengine_eventlog_analyzer:12050:*:*:*:*:*:*:*

External links

http://packetstormsecurity.com/files/156485/ManageEngine-EventLog-Analyzer-10.0-Information-Disclosure.html
http://gist.github.com/scottgoodwin90/19ccecdc9f5733c0a9381765cfc7fe39
http://www.manageengine.com/products/eventlog/features-new.html#release

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

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.