Remote code execution in SolarWinds Web Help Desk

1) Code Injection

EUVDB-ID: #VU61848

Risk: Medium

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-35254

CWE-ID: CWE-94 - Improper Control of Generation of Code ('Code Injection')

Exploit availability: No

Description

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

The vulnerability exists due to improper input validation. A remote user can send a specially crafted request 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

Web Help Desk: 12.7 - 12.7.8

External links

http://support.solarwinds.com/SuccessCenter/s/article/Web-Help-Desk-12-7-8-Hotfix-1-Release-Notes?language=en_US
http://www.solarwinds.com/trust-center/security-advisories/CVE-2021-35254

Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.