XML External Entity injection in ConnectWise Automate

1) XML External Entity injection

EUVDB-ID: #VU54350

Risk: High

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-35066

CWE-ID: CWE-611 - Improper Restriction of XML External Entity Reference ('XXE')

Exploit availability: No

Description

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

The vulnerability exists due to insufficient validation of user-supplied XML input. A remote attacker can pass a specially crafted XML code to the affected application and execute arbitrary code on the target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Automate: 2021.6.131

CPE2.3

• cpe:2.3:a:connectwise:automate:*:*:*:*:*:*:*:
• cpe:2.3:a:connectwise:automate:2021.6.131:*:*:*:*:*:*:

External links

http://www.connectwise.com/company/trust/security-bulletins
http://home.connectwise.com/securityBulletin/60cc8c63508a120001cb6e8d

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.