Phoenix Contact FL SWITCH SMCS TCP Fragmentation 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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5.2$0-$5k0.00

Summaryinfo

A vulnerability was found in Phoenix Contact FL SWITCH SMCS. It has been rated as problematic. Affected by this vulnerability is an unknown functionality of the component TCP Fragmentation Handler. Performing a manipulation results in denial of service. This vulnerability is cataloged as CVE-2021-21003. It is possible to initiate the attack remotely. There is no exploit available. It is suggested to use restrictive firewalling.

Detailsinfo

A vulnerability was found in Phoenix Contact FL SWITCH SMCS (version unknown). It has been classified as problematic. This affects an unknown function of the component TCP Fragmentation 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 06/26/2021 as vde-2021-023. It is possible to read the advisory at cert.vde.com. This vulnerability is uniquely identified as CVE-2021-21003. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.

It is possible to mitigate the weakness by firewalling .

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

Productinfo

Vendor

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.2

VulDB Base Score: 5.3
VulDB Temp Score: 5.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Firewall
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/17/2020 🔍
06/26/2021 +190 days 🔍
06/26/2021 +0 days 🔍
07/02/2021 +6 days 🔍

Sourcesinfo

Advisory: vde-2021-023
Status: Not defined
Confirmation: 🔍

CVE: CVE-2021-21003 (🔍)
GCVE (CVE): GCVE-0-2021-21003
GCVE (VulDB): GCVE-100-177639

Entryinfo

Created: 06/26/2021 06:41
Updated: 07/02/2021 23:54
Changes: 06/26/2021 06:41 (37), 07/02/2021 23:43 (6), 07/02/2021 23:54 (1)
Complete: 🔍
Cache ID: 216::103

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

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