VDB-216885 · CVE-2022-45431 · GCVE-0-2022-45431

Dahua DHI-DSS4004-S2 Packet 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 (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	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.
7.3	$0-$5k	0.00

Summaryinfo

A vulnerability marked as problematic has been reported in Dahua DSS Professional, DSS Express, DHI-DSS7016D-S2, DHI-DSS7016DR-S2 and DHI-DSS4004-S2. This impacts an unknown function of the component Packet Handler. Performing a manipulation results in denial of service. This vulnerability is known as CVE-2022-45431. Remote exploitation of the attack is possible. No exploit is available. Applying a patch is the recommended action to fix this issue.

Detailsinfo

A vulnerability, which was classified as critical, was found in Dahua DSS Professional, DSS Express, DHI-DSS7016D-S2, DHI-DSS7016DR-S2 and DHI-DSS4004-S2. This affects an unknown code of the component Packet 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:

Some Dahua software products have a vulnerability of unauthenticated restart of remote DSS Server. After bypassing the firewall access control policy, by sending a specific crafted packet to the vulnerable interface, an attacker could unauthenticated restart of remote DSS Server.

The weakness was published 12/27/2022 by Firewall. The advisory is shared at dahuasecurity.com. This vulnerability is uniquely identified as CVE-2022-45431 since 11/14/2022. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1499 for this issue.

Applying a patch is able to eliminate this problem.

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Productinfo

Vendor

Dahua

Name

License

commercial

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.3

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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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: Patch
Status: 🔍

0-Day Time: 🔍

Timelineinfo

11/14/2022 🔍
12/27/2022 +43 days 🔍
12/27/2022 +0 days 🔍
04/12/2025 +837 days 🔍

Sourcesinfo

Advisory: dahuasecurity.com
Researcher: Firewall
Status: Confirmed

CVE: CVE-2022-45431 (🔍)
GCVE (CVE): GCVE-0-2022-45431
GCVE (VulDB): GCVE-100-216885

Entryinfo

Created: 12/27/2022 23:16
Updated: 04/12/2025 10:30
Changes: 12/27/2022 23:16 (39), 01/25/2023 07:44 (10), 04/12/2025 10:30 (16)
Complete: 🔍
Cache ID: 216::103