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CVE-2024-21846— Electrolink FM/DAB/TV Transmitter Missing Authentication for Critical Function

Quick assessment

Affected
Electrolink Compact DAB Transmitter
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Electrolink FM/DAB/TV Transmitter是Electrolink公司的一系列发射机。 Electrolink FM/DAB/TV Transmitter 存在访问控制错误漏洞，该漏洞源于未经身份验证的攻击者可以通过向command.cgi网关发送特制的GET请求来导致拒绝服务（DOS）。

CVSS 5.3 · Medium EPSS 0.47% · P38

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2024-21846

Vulnerability Information
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Vulnerability Title
Electrolink FM/DAB/TV Transmitter Missing Authentication for Critical Function
Source: CVE Program / CVE List V5
Vulnerability Description
An unauthenticated attacker can reset the board and stop transmitter operations by sending a specially-crafted GET request to the command.cgi gateway, resulting in a denial-of-service scenario.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
关键功能的认证机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
Electrolink FM/DAB/TV Transmitter 访问控制错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Electrolink FM/DAB/TV Transmitter是Electrolink公司的一系列发射机。 Electrolink FM/DAB/TV Transmitter 存在访问控制错误漏洞，该漏洞源于未经身份验证的攻击者可以通过向command.cgi网关发送特制的GET请求来导致拒绝服务（DOS）。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Electrolink Compact DAB Transmitter 10W -
Electrolink Medium DAB Transmitter 500W -
Electrolink High Power DAB Transmitter 2.5kW -
Electrolink Compact FM Transmitter Compact FM Transmitter -
Electrolink Modular FM Transmitter 3kW -
Electrolink Digital FM Transmitter 15W ~ 40kW -
Electrolink VHF TV Transmitter BI -
Electrolink UHF TV Transmitter 10W ~ 5kW -

II. Public POCs for CVE-2024-21846

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III. Intelligence Information for CVE-2024-21846

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Vendor Advisories for CVE-2024-21846 (1)

Same Patch Batch · Electrolink · 2024-04-18 · 7 CVEs total

CVE-2024-22186 8.8 HIGH Electrolink FM/DAB/TV Transmitter Reliance on Cookies without Validation and Integrity Che
CVE-2024-21872 7.5 HIGH Electrolink FM/DAB/TV Transmitter Reliance on Cookies without Validation and Integrity Che
CVE-2024-22179 7.5 HIGH Electrolink FM/DAB/TV Transmitter Authentication Bypass by Assumed-Immutable Data
CVE-2024-1491 7.5 HIGH Electrolink FM/DAB/TV Transmitter Missing Authentication for Critical Function
CVE-2024-3741 7.5 HIGH Electrolink FM/DAB/TV Transmitter Authentication Bypass by Assumed-Immutable Data
CVE-2024-3742 7.5 HIGH Electrolink FM/DAB/TV Transmitter Cleartext Storage of Sensitive Information

IV. Related Vulnerabilities

Same product: Compact DAB Transmitter
Same vendor: Electrolink
Same weakness: CWE-306

V. Comments for CVE-2024-21846

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