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    CVE-2021-28840

    Null Pointer Dereference vulnerability exists in D-Link DAP-2310 2.07.RC031, DAP-2330 1.07.RC028, DAP-2360 2.07.RC043, DAP-2553 3.06.RC027, DAP-2660 1.13.RC074, DAP-2690 3.16.RC100, DAP-2695 1.17.RC063, DAP-3320 1.01.RC014 and DAP-3662 1.01.RC022 in the upload_config function of sbin/httpd binary. When the binary handle the specific HTTP GET request, the content in upload_file variable is NULL in the upload_config function then the strncasecmp would take NULL as first argument, and incur the NULL pointer dereference vulnerability.

    Published:Aug 10, 2021
    Last Modified:Nov 21, 2024
    EPS:Aug 10, 2021
    EPSS Score:0.01044
    CVSS Score:7.5

    Affected Products

    Vendor
    Dlink
    Product
    Dap-2310
    Vendor
    Dlink
    Product
    Dap-2310 Firmware
    Vendor
    Dlink
    Product
    Dap-2330
    Vendor
    Dlink
    Product
    Dap-2330 Firmware
    Vendor
    Dlink
    Product
    Dap-2360
    Vendor
    Dlink
    Product
    Dap-2360 Firmware
    Vendor
    Dlink
    Product
    Dap-2553
    Vendor
    Dlink
    Product
    Dap-2553 Firmware
    Vendor
    Dlink
    Product
    Dap-2660
    Vendor
    Dlink
    Product
    Dap-2660 Firmware
    Vendor
    Dlink
    Product
    Dap-2690
    Vendor
    Dlink
    Product
    Dap-2690 Firmware
    Vendor
    Dlink
    Product
    Dap-2695
    Vendor
    Dlink
    Product
    Dap-2695 Firmware
    Vendor
    Dlink
    Product
    Dap-3320
    Vendor
    Dlink
    Product
    Dap-3320 Firmware
    Vendor
    Dlink
    Product
    Dap-3662
    Vendor
    Dlink
    Product
    Dap-3662 Firmware

    Exploits

    https://github.com/zyw-200/EQUAFL/blob/main/dlink-email-cve.pdfhttps://github.com/zyw-200/EQUAFL/blob/main/dlink-email-cve.pdf

    Common Weakness Enumeration

    CWE-476 NULL Pointer Dereference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    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