PCMan FTP Server 2.0.7 USER Command denial of service

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
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CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.9$0-$5k0.93

Summaryinfo

A vulnerability was found in PCMan FTP Server 2.0.7. It has been rated as problematic. The impacted element is an unknown function of the component USER Command Handler. Performing a manipulation results in denial of service. This vulnerability is cataloged as CVE-2021-4432. It is possible to initiate the attack remotely. Furthermore, there is an exploit available.

Detailsinfo

A vulnerability was found in PCMan FTP Server 2.0.7 (File Transfer Software). It has been classified as problematic. This affects an unknown function of the component USER Command Handler. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability.

The weakness was shared 01/14/2024 as 163104. It is possible to read the advisory at packetstormsecurity.com. This vulnerability is uniquely identified as CVE-2021-4432. Technical details are unknown but a public exploit is available. The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.

The exploit is shared for download at 0day.today. It is declared as proof-of-concept.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.0
VulDB Meta Temp Score: 5.9

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CNA Base Score: 5.3
CNA Vector (VulDB): 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/14/2024 🔍
01/14/2024 +0 days 🔍
01/14/2024 +0 days 🔍
02/03/2024 +20 days 🔍

Sourcesinfo

Advisory: 163104
Status: Not defined

CVE: CVE-2021-4432 (🔍)
GCVE (CVE): GCVE-0-2021-4432
GCVE (VulDB): GCVE-100-250719
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 01/14/2024 20:32
Updated: 02/03/2024 10:51
Changes: 01/14/2024 20:32 (42), 02/03/2024 10:45 (2), 02/03/2024 10:51 (28)
Complete: 🔍
Submitter: fernando.mengali
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #267088: PCMan FTP Server 2.0.7 Denial of Service (by fernando.mengali)

Be aware that VulDB is the high quality source for vulnerability data.

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