xstreamproject xstream CVE-2021-21347 vulnerability in Xstreamproject and Other Products
Published on March 23, 2021

XStream is vulnerable to an Arbitrary Code Execution attack

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XStream is a Java library to serialize objects to XML and back again. In XStream before version 1.4.16, there is a vulnerability which may allow a remote attacker to load and execute arbitrary code from a remote 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. If you rely on XStream's default blacklist of the Security Framework, you will have to use at least version 1.4.16.

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Vulnerability Analysis

CVE-2021-21347 can be exploited with network access, requires user interaction. This vulnerability is consided to have a high level of attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality, a high impact on integrity, and no impact on availability.

Attack Vector:
NETWORK
Attack Complexity:
HIGH
Privileges Required:
NONE
User Interaction:
REQUIRED
Scope:
CHANGED
Confidentiality Impact:
NONE
Integrity Impact:
HIGH
Availability Impact:
NONE

Weakness Types

What is an Unrestricted File Upload Vulnerability?

The software allows the attacker to upload or transfer files of dangerous types that can be automatically processed within the product's environment.

CVE-2021-21347 has been classified to as an Unrestricted File Upload vulnerability or weakness.

What is a Marshaling, Unmarshaling Vulnerability?

The application deserializes untrusted data without sufficiently verifying that the resulting data will be valid.

CVE-2021-21347 has been classified to as a Marshaling, Unmarshaling vulnerability or weakness.


Products Associated with CVE-2021-21347

You can be notified by email with stack.watch whenever vulnerabilities like CVE-2021-21347 are published in these products:

Xstreamproject Xstream
 
Debian Linux
 
Canonical Ubuntu Linux
 
Fedora Project Fedora
 
Oracle Banking Enterprise Default Management
 
Oracle Banking Platform
 
Oracle Banking Virtual Account Management
 
Oracle Business Activity Monitoring
 
Oracle Communications Billing Revenue Management Elastic Charging Engine
 
Oracle Communications Policy Management
 
Oracle Communications Unified Inventory Management
 
Oracle Retail Xstore Point Of Service
 
Oracle Webcenter Portal
 
Oracle Weblogic Server
 
NetApp Oncommand Insight
 
Apache ActiveMQ
 
Apache JMeter
 
Xstream
 

Affected Versions

x-stream xstream Version < 1.4.16 is affected by CVE-2021-21347

Vulnerable Packages

The following package name and versions may be associated with CVE-2021-21347

Package Manager Vulnerable Package Versions Fixed In
maven com.thoughtworks.xstream:xstream < 1.4.16 1.4.16

Exploit Probability

EPSS
2.89%
Percentile
86.08%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.