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    CVE-2021-40415

    An incorrect default permission vulnerability exists in the cgiserver.cgi cgi_check_ability functionality of reolink RLC-410W v3.0.0.136_20121102. In cgi_check_ability the Format API does not have a specific case, the user permission will default to 7. This will give non-administrative users the possibility to format the SD card and reboot the device.

    Published:Jan 28, 2022
    Last Modified:Apr 15, 2025
    EPS:Jan 28, 2022
    EPSS Score:0.00275
    CVSS Score:6.5

    Affected Products

    Vendor
    Reolink
    Product
    Rlc-410w
    Vendor
    Reolink
    Product
    Rlc-410w Firmware

    Exploits

    https://talosintelligence.com/vulnerability_reports/TALOS-2021-1425https://talosintelligence.com/vulnerability_reports/TALOS-2021-1425

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-1 Accessing Functionality Not Properly Constrained by ACLs
    CAPEC-127 Directory Indexing
    CAPEC-19 Embedding Scripts within Scripts
    CAPEC-441 Malicious Logic Insertion
    CAPEC-478 Modification of Windows Service Configuration
    CAPEC-479 Malicious Root Certificate
    CAPEC-502 Intent Spoof
    CAPEC-503 WebView Exposure
    CAPEC-536 Data Injected During Configuration
    CAPEC-546 Incomplete Data Deletion in a Multi-Tenant Environment
    CAPEC-550 Install New Service
    CAPEC-551 Modify Existing Service
    CAPEC-552 Install Rootkit
    CAPEC-556 Replace File Extension Handlers
    CAPEC-558 Replace Trusted Executable
    CAPEC-562 Modify Shared File
    CAPEC-563 Add Malicious File to Shared Webroot
    CAPEC-564 Run Software at Logon
    CAPEC-578 Disable Security Software
    CAPEC-81 Web Server Logs Tampering

    Related CVEs

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    CVE-2021-44366 (CVSS 7.5) — Multiple denial of service vulnerabilities exist in the cgiserver.cgi JSON command parser functionality of Reo…
    CVE-2021-44357 (CVSS 7.5) — Multiple denial of service vulnerabilities exist in the cgiserver.cgi JSON command parser functionality of Reo…
    CVE-2021-44356 (CVSS 7.5) — Multiple denial of service vulnerabilities exist in the cgiserver.cgi JSON command parser functionality of Reo…
    CVE-2021-44355 (CVSS 7.5) — Multiple denial of service vulnerabilities exist in the cgiserver.cgi JSON command parser functionality of Reo…
    CVE-2021-44354 (CVSS 7.5) — Multiple denial of service vulnerabilities exist in the cgiserver.cgi JSON command parser functionality of Reo…
    CVE-2021-40405 (CVSS 6.5) — A denial of service vulnerability exists in the cgiserver.cgi Upgrade API functionality of Reolink RLC-410W v3…
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    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High