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CISA Known Exploited Vulnerabilities

XStream Remote Code Execution Vulnerability is confirmed as actively exploited and is listed in the CISA KEV catalog.

Added to KEV
2023-03-10
Remediation due
2023-03-31

Required action
Apply updates per vendor instructions.

CISA notes
https://www.vmware.com/security/advisories/VMSA-2022-0027.html, https://x-stream.github.io/CVE-2021-39144.html; https://nvd.nist.gov/vuln/detail/CVE-2021-39144

Description

XStream is a simple library to serialize objects to XML and back again. In affected versions this vulnerability may allow a remote attacker has sufficient rights to execute commands of the host only by manipulating the processed input stream. No user is affected, who followed the recommendation to setup XStream's security framework with a whitelist limited to the minimal required types. XStream 1.4.18 uses no longer a blacklist by default, since it cannot be secured for general purpose.

Severity

CVSS 3.1 · CNA8.5 HIGH
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
SSVC · CISA-ADP
Exploitationactive
Automatableno
Technical impacttotal

Affected Products

VendorProductAffected versions
x-streamxstream
< 1.4.18

Related Tool Categories

Tool categories that test for or protect against this vulnerability class.

CWE-502 · Deserialization of Untrusted Data

CVE record data © The MITRE Corporation, used under the CVE Terms of Use. Exploited-in-the-wild data from the CISA Known Exploited Vulnerabilities catalog (CC0). Exploit prediction scores by FIRST EPSS (first.org/epss). This site is not endorsed or certified by MITRE, NVD, CISA, or FIRST.