TP-LINK TL-WR840N v2 3.16.9 Build 150701 Rel.51516n Diagnostic input validation

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
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.
3.8$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in TP-LINK TL-WR840N v2 3.16.9 Build 150701 Rel.51516n. This affects an unknown part of the component Diagnostic. The manipulation leads to input validation. This vulnerability is uniquely identified as CVE-2018-18489. It is possible to initiate the attack remotely. There is no exploit available. It is recommended to apply restrictive firewalling. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Detailsinfo

A vulnerability was found in TP-LINK TL-WR840N v2 3.16.9 Build 150701 Rel.51516n (Router Operating System). It has been rated as problematic. Affected by this issue is an unknown code of the component Diagnostic. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. Impacted is availability. CVE summarizes:

The ping feature in the Diagnostic functionality on TP-LINK WR840N v2 Firmware 3.16.9 Build 150701 Rel.51516n devices allows remote attackers to cause a denial of service (HTTP service termination) by modifying the packet size to be higher than the UI limit of 1472.

The weakness was shared 04/16/2019. This vulnerability is handled as CVE-2018-18489 since 10/18/2018. The attack may be launched remotely. A simple authentication is needed for exploitation. There are neither technical details nor an exploit publicly available.

Addressing this vulnerability is possible by firewalling .

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.8
VulDB Meta Temp Score: 3.8

VulDB Base Score: 2.7
VulDB Temp Score: 2.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 4.9
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: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

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: Firewall
Status: 🔍

0-Day Time: 🔍

Timelineinfo

10/18/2018 🔍
04/16/2019 +180 days 🔍
04/17/2019 +1 days 🔍
08/29/2023 +1595 days 🔍

Sourcesinfo

Vendor: tp-link.com

Advisory: youtu.be
Status: Not defined

CVE: CVE-2018-18489 (🔍)
GCVE (CVE): GCVE-0-2018-18489
GCVE (VulDB): GCVE-100-133424

Entryinfo

Created: 04/17/2019 07:37 AM
Updated: 08/29/2023 11:48 AM
Changes: 04/17/2019 07:37 AM (36), 05/30/2020 06:55 AM (18), 08/29/2023 11:48 AM (4)
Complete: 🔍
Cache ID: 18:236:40

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