VDB-204048 · CVE-2021-41419 · GCVE-0-2021-41419

QVIS NVR DVR prior 2021-12-13 deserialization

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.
7.9	$0-$5k	0.00

Summaryinfo

A vulnerability described as critical has been identified in QVIS NVR DVR. This impacts an unknown function. The manipulation results in deserialization. This vulnerability was named CVE-2021-41419. The attack may be performed from remote. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as critical has been found in QVIS NVR DVR. Affected is an unknown code block. The manipulation with an unknown input leads to a deserialization vulnerability. CWE is classifying the issue as CWE-502. The product deserializes untrusted data without sufficiently verifying that the resulting data will be valid. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

QVIS NVR DVR before 2021-12-13 is vulnerable to Remote Code Execution via Java deserialization.

The weakness was presented 07/18/2022. The advisory is shared for download at gist.github.com. This vulnerability is traded as CVE-2021-41419 since 09/20/2021. There are neither technical details nor an exploit publicly available.

Upgrading to version 2021-12-13 eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

QVIS

Name

NVR DVR

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.0
VulDB Meta Temp Score: 7.9

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

Exploitinginfo

Class: Deserialization
CWE: CWE-502 / CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: NVR DVR 2021-12-13

Timelineinfo

09/20/2021 🔍
12/13/2021 +84 days 🔍
07/18/2022 +216 days 🔍
07/18/2022 +0 days 🔍
08/01/2022 +14 days 🔍

Sourcesinfo

Advisory: gist.github.com
Status: Confirmed

CVE: CVE-2021-41419 (🔍)
GCVE (CVE): GCVE-0-2021-41419
GCVE (VulDB): GCVE-100-204048

Entryinfo

Created: 07/18/2022 07:45
Updated: 08/01/2022 14:15
Changes: 07/18/2022 07:45 (39), 08/01/2022 14:15 (11)
Complete: 🔍
Cache ID: 216::103