Description

WS_FTP Ad Hoc Transfer (WS_FTP) is an IIS data transfer module. WS_FTP WS_FTP uses .NET deserialization of user-supplied data. Arbitrary object deserialization is inherently unsafe, and should never be performed on untrusted data.

Remediation

Upgrade to the latest version of WS_FTP

References

WS_FTP Server Critical Vulnerability - (September 2023)

RCE in Progress WS_FTP Ad Hoc via IIS HTTP Modules (CVE-2023-40044)

Related Vulnerabilities

VMware Horizon Log4Shell RCE

Oracle Access Manager 'opensso' Deserialization RCE (CVE-2021-35587)

ColdFusion FlashGateway Deserialization RCE CVE-2019-7091

Deserialization of Untrusted Data (Java JSON Deserialization) Genson

WordPress 5.0.x Multiple Vulnerabilities (5.0 - 5.0.20)

Severity

Critical

Classification

CVE-2023-40044 CWE-502 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Tags

Insecure Deserialization Acumonitor