Yamaha RTX830/NVR510/NVR700W/RTX1210 Web GUI cross site scripting

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.3$0-$5k0.00

A vulnerability, which was classified as problematic, was found in Yamaha RTX830, NVR510, NVR700W and RTX1210 (the affected version unknown). This affects an unknown part of the component Web GUI. The manipulation with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. This is going to have an impact on integrity.

The weakness was shared 11/24/2021. It is possible to read the advisory at rtpro.yamaha.co.jp. This vulnerability is uniquely identified as CVE-2021-20844 since 12/17/2020. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK.

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

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.3

VulDB Base Score: 4.3
VulDB Temp Score: 4.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-74 / CWE-707
ATT&CK: T1059.007

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/17/2020 🔍
11/24/2021 +342 days 🔍
11/24/2021 +0 days 🔍
11/27/2021 +3 days 🔍

Sourcesinfo

Advisory: rtpro.yamaha.co.jp
Status: Confirmed

CVE: CVE-2021-20844 (🔍)

Entryinfo

Created: 11/24/2021 18:45
Updated: 11/27/2021 19:03
Changes: 11/24/2021 18:45 (36), 11/27/2021 19:03 (1)
Complete: 🔍

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