WS_FTP Server <8.7.4/8.8.2 .NET Deserialization Enables Remote Cmd Exec
CVE-2023-40044 Published on September 27, 2023
WS_FTP Server Ad Hoc Transfer Module .NET Deserialization Vulnerability
In WS_FTP Server versions prior to 8.7.4 and 8.8.2, a pre-authenticated attacker could leverage a .NET deserialization vulnerability in the Ad Hoc Transfer module to execute remote commands on the underlying WS_FTP Server operating system.
Known Exploited Vulnerability
This Progress WS_FTP Server Deserialization of Untrusted Data Vulnerability is part of CISA's list of Known Exploited Vulnerabilities. Progress WS_FTP Server contains a deserialization of untrusted data vulnerability in the Ad Hoc Transfer module that allows an authenticated attacker to execute remote commands on the underlying operating system.
The following remediation steps are recommended / required by October 26, 2023: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Vulnerability Analysis
CVE-2023-40044 is exploitable with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. This vulnerability is known to be actively exploited by threat actors in an automatable fashion. The potential impact of an exploit of this vulnerability is considered to be critical as this vulnerability has a high impact to the confidentiality, integrity and availability of this component.
Weakness Type
What is a Marshaling, Unmarshaling Vulnerability?
The application deserializes untrusted data without sufficiently verifying that the resulting data will be valid.
CVE-2023-40044 has been classified to as a Marshaling, Unmarshaling vulnerability or weakness.
Products Associated with CVE-2023-40044
stack.watch emails you whenever new vulnerabilities are published in Progress Ws Ftp Server or Ipswitch Ws Ftp Server. Just hit a watch button to start following.
Affected Versions
Progress Software Corporation WS_FTP Server:- Version 8.8.0 and below 8.8.2 is affected.
- Version 8.7.0 and below 8.7.4 is affected.
Exploit Probability
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.