XStream Multiple high-risk Vulnerability Alert

On March 13, 2021, Xstream released a security update to fix many security vulnerabilities. The POC has been published.

CVE Description
2021
CVE-2021-21341 XStream can cause a Denial of Service.
CVE-2021-21342 A Server-Side Forgery Request can be activated unmarshalling with XStream to access data streams from an arbitrary URL referencing a resource in an intranet or the local host.
CVE-2021-21343 XStream is vulnerable to an Arbitrary File Deletion on the local host when unmarshalling as long as the executing process has sufficient rights.
CVE-2021-21344 XStream is vulnerable to an Arbitrary Code Execution attack.
CVE-2021-21345 XStream is vulnerable to a Remote Command Execution attack.
CVE-2021-21346 XStream is vulnerable to an Arbitrary Code Execution attack.
CVE-2021-21347 XStream is vulnerable to an Arbitrary Code Execution attack.
CVE-2021-21348 XStream is vulnerable to an attack using Regular Expression for a Denial of Service (ReDos).
CVE-2021-21349 A Server-Side Forgery Request can be activated unmarshalling with XStream to access data streams from an arbitrary URL referencing a resource in an intranet or the localhost.
CVE-2021-21350 XStream is vulnerable to an Arbitrary Code Execution attack.
CVE-2021-21351 XStream is vulnerable to an Arbitrary Code Execution attack.

Affected version

  • XStream <= 1.4.15

Solution

It is recommended to upgrade to the latest XStream version and follow the official mitigation measures to repair.