CVE-2025-68670: discovering an RCE vulnerability in xrdp

The article discusses the discovery and analysis of a significant vulnerability (CVE-2025-68670) in the xrdp project, an open-source Remote Desktop Protocol (RDP) server. The vulnerability arises from improper handling of input data, specifically long domain names, which can lead to buffer overflows and potential code execution.

Key Points:

1. Vulnerability Details:

   • CVE-2025-68670: A stack-based buffer overflow in the xrdp server.
   • Impact: An attacker could exploit this vulnerability by sending a specially crafted RDP file with an overly long domain name, leading to arbitrary code execution within the context of the compromised process (xrdp).
   • Trigger: The issue occurs when processing data from an RDP client that includes a malformed or excessively long domain name.

2. Technical Analysis:

   • The vulnerability is triggered in the xrdp_wm_show_edits function, which processes user input and writes it to a fixed-size buffer without proper validation.
   • A crafted domain name can cause data to overflow beyond the allocated buffer size, potentially overwriting critical stack memory such as return

Read the full article at Malware Analysis, News and Indicators - Latest topics

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