CVE-2020-26217 PoC — Remote Code Execution in XStream

Source

https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2020/CVE-2020-26217.yaml

Associated Vulnerability

Title: Remote Code Execution in XStream (CVE-2020-26217)
Description:XStream before version 1.4.14 is vulnerable to Remote Code Execution.The vulnerability may allow a remote attacker to run arbitrary shell commands only by manipulating the processed input stream. Only users who rely on blocklists are affected. Anyone using XStream's Security Framework allowlist is not affected. The linked advisory provides code workarounds for users who cannot upgrade. The issue is fixed in version 1.4.14.

Description

XStream before 1.4.14 is susceptible to remote code execution. An attacker can run arbitrary shell commands by manipulating the processed input stream, thereby making it possible to obtain sensitive information, modify data, and/or execute unauthorized administrative operations in the context of the affected site. Users who rely on blocklists are affected.

File Snapshot

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