VSFTPD 3.0.3 Connection denial of service

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.3$0-$5k0.54

Summaryinfo

A vulnerability was found in VSFTPD 3.0.3. It has been rated as problematic. The impacted element is an unknown function of the component Connection Handler. Performing a manipulation results in denial of service. This vulnerability was named CVE-2021-30047. In addition, an exploit is available.

Detailsinfo

A vulnerability, which was classified as problematic, was found in VSFTPD 3.0.3 (File Transfer Software). This affects an unknown function of the component Connection 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 summary by CVE is:

VSFTPD 3.0.3 allows attackers to cause a denial of service due to limited number of connections allowed.

The weakness was presented 08/23/2023 as 49719. It is possible to read the advisory at exploit-db.com. This vulnerability is uniquely identified as CVE-2021-30047 since 04/02/2021. Technical details are unknown but a public exploit is available.

The exploit is shared for download at exploit-db.com. 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.

The vulnerability is also documented in the vulnerability database at Exploit-DB (49719). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.3

VulDB Base Score: 3.5
VulDB Temp Score: 3.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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

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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Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

04/02/2021 🔍
08/23/2023 +873 days 🔍
08/23/2023 +0 days 🔍
09/16/2023 +24 days 🔍

Sourcesinfo

Advisory: 49719
Status: Not defined

CVE: CVE-2021-30047 (🔍)
GCVE (CVE): GCVE-0-2021-30047
GCVE (VulDB): GCVE-100-237783
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 08/23/2023 10:25
Updated: 09/16/2023 08:39
Changes: 08/23/2023 10:25 (43), 09/16/2023 08:39 (11)
Complete: 🔍
Cache ID: 216::103

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

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