Deserialization of Untrusted Data in xstream - CVE-2021-21347

 

Deserialization of Untrusted Data in xstream - CVE-2021-21347

Published: April 26, 2021 / Updated: December 17, 2024


Vulnerability identifier: #VU52564
CSH Severity: High
CVSS v4.0: 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/E:U/U:Amber
CVE-ID: CVE-2021-21347
CWE-ID: CWE-502
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: XStream
Affected software:
xstream

Detailed vulnerability 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. A remote attacker can pass specially crafted data to the application and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.


How to mitigate CVE-2021-21347

Install updates from vendor's website.

Sources