Tenda AC18 up to V15.03.05.05_EN CN Authentication ngx_wdas.lua logincheck improper authentication

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.5$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Tenda AC18 up to V15.03.05.05_EN CN. The impacted element is the function logincheck in the library /usr/lib/lua/ngx_authserver/ngx_wdas.lua of the component Authentication. Performing a manipulation results in improper authentication. This vulnerability is identified as CVE-2020-24987. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability, which was classified as critical, was found in Tenda AC18 up to V15.03.05.05_EN CN. This affects the function logincheck in the library /usr/lib/lua/ngx_authserver/ngx_wdas.lua of the component Authentication. The manipulation with an unknown input leads to a improper authentication vulnerability. CWE is classifying the issue as CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Tenda AC18 Router through V15.03.05.05_EN and through V15.03.05.19(6318) CN devices could cause a remote code execution due to incorrect authentication handling of vulnerable logincheck() function in /usr/lib/lua/ngx_authserver/ngx_wdas.lua file if the administrator UI Interface is set to "radius".

The weakness was released 09/04/2020. This vulnerability is uniquely identified as CVE-2020-24987 since 08/28/2020. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are known, but no exploit is available.

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

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.5

VulDB Base Score: 7.3
VulDB Temp Score: 7.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Improper authentication
CWE: CWE-287
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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

08/28/2020 🔍
09/04/2020 +7 days 🔍
09/05/2020 +1 days 🔍
09/05/2020 +0 days 🔍

Sourcesinfo

Vendor: tenda.com.cn

Status: Not defined

CVE: CVE-2020-24987 (🔍)
GCVE (CVE): GCVE-0-2020-24987
GCVE (VulDB): GCVE-100-160761

Entryinfo

Created: 09/05/2020 08:36
Updated: 09/05/2020 08:41
Changes: 09/05/2020 08:36 (37), 09/05/2020 08:41 (17)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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