CVE-2024-9999

Multi-Factor Authentication Bypass in Progress WS_FTP Server

Severity Score

6.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track*

*SSVC

Descriptions

In WS_FTP Server versions before 8.8.9 (2022.0.9), an Incorrect Implementation of Authentication Algorithm in the Web Transfer Module allows users to skip the second-factor verification and log in with username and password only.

*Credits: isira_adithya from BugCrowd

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

None

Attack Vector

Network

Attack Complexity

Low

Authentication

Multiple

Confidentiality

Complete

Integrity

Complete

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:Track*

Exploitation

None

Automatable

Tech. Impact

Total

* Organization's Worst-case Scenario

Timeline

2024-10-15 CVE Reserved
2024-11-12 CVE Published
2024-11-12 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-303: Incorrect Implementation of Authentication Algorithm

CAPEC

CAPEC-114: Authentication Abuse
CAPEC-115: Authentication Bypass
CAPEC-554: Functionality Bypass

References (2)

URL	Tag	Source
https://www.progress.com/ftp-server	Product

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://community.progress.com/s/article/WS-FTP-Server-Service-Pack-November-2024	2024-11-12

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Progress Software Corporation Search vendor "Progress Software Corporation"		WS FTP Server Search vendor "Progress Software Corporation" for product "WS FTP Server"				< 8.8.9 Search vendor "Progress Software Corporation" for product "WS FTP Server" and version " < 8.8.9"		en		Affected