Improper access control in HtmlUnit - CVE-2020-5529
Published: February 10, 2020
Vulnerability identifier: #VU25096
CSH Severity: High
CVSS v4: 9.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-5529
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.
The vulnerability exists due to improper access restrictions in Rhino engine. When embedded in Android application, Android-specific initialization of Rhino engine is done in an improper way, hence a remote attacker can use a malicious JavaScript code and execute arbitrary Java code on the application.
Affected software
HtmlUnit
Ubuntu
libhtmlunit-java (Ubuntu package)
Ubuntu
libhtmlunit-java (Ubuntu package)
How to mitigate CVE-2020-5529
Install updates from vendor's website.
HtmlUnit - update to 2.37.0
libhtmlunit-java (Ubuntu package) - update to 2.8-1ubuntu2.1
libhtmlunit-java (Ubuntu package) - update to 2.8-1ubuntu2.1