CVE-2021-21345: XStream is vulnerable to a Remote Command Execution attack
A flaw was found in xstream. A remote attacker, who has sufficient rights, can execute commands of the host by manipulating the processed input stream. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Other sources
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 who 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. If you rely on XStream's default blacklist of the Security Framework, you will have to use at least version 1.4.16.
Affected Software
Remediation
Patch Available
Patch Available
Event History
Parent advisories
This vulnerability appears in the following advisories.
Frequently Asked Questions
What is CVE-2021-21345?
CVE-2021-21345 is a vulnerability in XStream, a Java library for serializing objects to XML and back.
What is the severity of CVE-2021-21345?
CVE-2021-21345 has a severity rating of 9.9, which is considered critical.
How does CVE-2021-21345 work?
CVE-2021-21345 allows a remote attacker with sufficient rights to execute commands on the host by manipulating the input stream.
What software is affected by CVE-2021-21345?
CVE-2021-21345 affects XStream versions up to 1.4.16, as well as certain versions of libxstream-java, Oracle Banking Enterprise Default Management, Oracle Banking Platform, Oracle Banking Virtual Account Management, Oracle Business Activity Monitoring, Oracle Communications Billing and Revenue Management Elastic Charging Engine, Oracle Communications Policy Management, Oracle Communications Unified Inventory Management, Oracle PeopleSoft Enterprise PeopleTools, Oracle Retail XStore Point of Service, and Oracle WebCenter Portal.
How can I fix CVE-2021-21345?
To fix CVE-2021-21345, upgrade XStream to version 1.4.16 or apply the appropriate security patches for the affected software.