2021-22235 | Wireshark DNP Dissector 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

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5.3 $0-$5k 0.65

A vulnerability, which was classified as problematic, was found in Wireshark up to 3.2.14/3.4.6 (Packet Analyzer Software). Affected is an unknown code of the component DNP Dissector. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. This is going to have an impact on availability. CVE summarizes:

Crash in DNP dissector in Wireshark 3.4.0 to 3.4.6 and 3.2.0 to 3.2.14 allows denial of service via packet injection or crafted capture file

The weakness was shared 07/21/2021. The advisory is available at wireshark.org. This vulnerability is traded as CVE-2021-22235 since 01/05/2021. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn’t require any form of authentication. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1499 by the MITRE ATT&CK project.

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

Type

Name

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

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

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Vector Complexity Authentication Confidentiality Integrity Availability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Class: Denial of service
CWE: CWE-404
ATT&CK: T1499

Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔒


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Threat Intelligenceinfoedit

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

01/05/2021 CVE assigned
07/21/2021 +196 days Advisory disclosed
07/21/2021 +0 days VulDB entry created
07/26/2021 +4 days VulDB last updateProduct: https://www.wireshark.org/

Advisory: wireshark.org
Status: Confirmed
Confirmation: 🔒

CVE: CVE-2021-22235 (🔒)

Created: 07/21/2021 11:31
Updated: 07/26/2021 00:03
Changes: (1) source_cve_cna
Complete: 🔍

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