#VU28158 Deserialization of Untrusted Data in Apache Tomcat - CVE-2020-9484

CSH
CYBERSECURITY HELP
Sign In REGISTER
 
Main Vulnerability Database Vulnerabilities #VU28158

#VU28158 Deserialization of Untrusted Data in Apache Tomcat - CVE-2020-9484

Published: May 21, 2020 / Updated: September 27, 2024


Vulnerability identifier: #VU28158
Vulnerability risk: High
CVSSv4.0: 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/E:P/U:Amber
CVE-ID: CVE-2020-9484
CWE-ID: CWE-502
Exploitation vector: Remote access
Exploit availability: Public exploit is available
Vulnerable software:
Apache Tomcat
Software vendor:
Apache Foundation

Description

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

The vulnerability exists due to insecure input validation when processing serialized data in uploaded files names. A remote attacker can pass specially crafted file name to the application and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system but requires that the server is configured to use PersistenceManager with a FileStore and the attacker knows relative file path from storage location.


Remediation

Install updates from vendor's website.

External links