ZyXEL GS1920-24v2 prior 4.70(ABMH.8)C0 HTTP Request unusual condition

CVSS Meta Temp Score
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CTI Interest Score
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7.7$0-$5k0.00

Summaryinfo

A vulnerability was found in ZyXEL GS1920-24v2. It has been rated as critical. Impacted is an unknown function of the component HTTP Request Handler. Performing a manipulation results in unusual condition. This vulnerability is cataloged as CVE-2022-43393. It is possible to initiate the attack remotely. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in ZyXEL GS1920-24v2. It has been classified as critical. This affects an unknown function of the component HTTP Request Handler. The manipulation with an unknown input leads to a unusual condition vulnerability. CWE is classifying the issue as CWE-754. The product does not check or incorrectly checks for unusual or exceptional conditions that are not expected to occur frequently during day to day operation of the product. This is going to have an impact on availability. The summary by CVE is:

An improper check for unusual or exceptional conditions in the HTTP request processing function of Zyxel GS1920-24v2 firmware prior to V4.70(ABMH.8)C0, which could allow an unauthenticated attacker to corrupt the contents of the memory and result in a denial-of-service (DoS) condition on a vulnerable device.

The weakness was shared 01/11/2023. It is possible to read the advisory at zyxel.com. This vulnerability is uniquely identified as CVE-2022-43393 since 10/18/2022. The technical details are unknown and an exploit is not publicly available.

Upgrading to version 4.70(ABMH.8)C0 eliminates this vulnerability.

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

Productinfo

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.8
VulDB Meta Temp Score: 7.7

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

CNA Base Score: 8.2
CNA Vector (Zyxel Corporation): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Unusual condition
CWE: CWE-754
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: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: GS1920-24v2 4.70(ABMH.8)C0

Timelineinfo

10/18/2022 🔍
01/11/2023 +85 days 🔍
01/11/2023 +0 days 🔍
01/11/2023 +0 days 🔍

Sourcesinfo

Vendor: zyxel.com

Advisory: zyxel.com
Status: Confirmed

CVE: CVE-2022-43393 (🔍)
GCVE (CVE): GCVE-0-2022-43393
GCVE (VulDB): GCVE-100-217959

Entryinfo

Created: 01/11/2023 07:36
Changes: 01/11/2023 07:36 (48)
Complete: 🔍
Cache ID: 216::103

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

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