xstreamproject xstream CVE-2021-39151 vulnerability in Xstreamproject and Other Products
Published on August 23, 2021

XStream is vulnerable to an Arbitrary Code Execution attack

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XStream is a simple library to serialize objects to XML and back again. In affected versions this vulnerability 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. XStream 1.4.18 uses no longer a blacklist by default, since it cannot be secured for general purpose.

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Vulnerability Analysis

CVE-2021-39151 can be exploited with network access, and requires small amount of user privileges. This vulnerability is consided to have a high level of attack complexity. The potential impact of an exploit of this vulnerability is considered to be very high.

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

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-2021-39151 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-2021-39151 has been classified to as a Marshaling, Unmarshaling vulnerability or weakness.


Products Associated with CVE-2021-39151

You can be notified by email with stack.watch whenever vulnerabilities like CVE-2021-39151 are published in these products:

Xstreamproject Xstream
 
Debian Linux
 
Fedora Project Fedora
 
NetApp Snapmanager
 
Oracle Business Activity Monitoring
 
Oracle Communications Billing Revenue Management Elastic Charging Engine
 
Oracle Communications Cloud Native Core Binding Support Function
 
Oracle Communications Cloud Native Core Policy
 
Oracle Communications Unified Inventory Management
 
Oracle Utilities Framework
 
Oracle Utilities Testing Accelerator
 
Oracle Webcenter Portal
 
Oracle Retail Xstore Point Of Service
 
Oracle Commerce Guided Search
 
Oracle Communications Cloud Native Core Automated Test Suite
 
Canonical Ubuntu Linux
 
Xstream
 

Affected Versions

x-stream xstream Version < 1.4.18 is affected by CVE-2021-39151

Vulnerable Packages

The following package name and versions may be associated with CVE-2021-39151

Package Manager Vulnerable Package Versions Fixed In
maven com.thoughtworks.xstream:xstream < 1.4.18 1.4.18

Exploit Probability

EPSS
0.57%
Percentile
68.26%

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.