Use of hard-coded credentials in MyLittleAdmin - CVE-2020-13166
Published: May 25, 2020 / Updated: July 28, 2020
Vulnerability identifier: #VU28219
CSH Severity: High
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-13166
CWE-ID: CWE-798
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vulnerability details
The vulnerability allows a remote attacker to gain full access to vulnerable system.
The vulnerability exists due to presence of hard-coded "machineKey" in web.config. A remote unauthenticated attacker can serialize objects that will be parsed by the ASP code used by the server as if it were MyLittleAdmin’s serialized object and execute arbitrary code on the remote server.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
MyLittleAdmin
Plesk
Plesk
How to mitigate CVE-2020-13166
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.
Plesk - addressed in versions 17.5.3 Update 95, 17.8.11 Update 89