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    CVE-2021-27342

    An authentication brute-force protection mechanism bypass in telnetd in D-Link Router model DIR-842 firmware version 3.0.2 allows a remote attacker to circumvent the anti-brute-force cool-down delay period via a timing-based side-channel attack

    Published:May 17, 2021
    Last Modified:Nov 21, 2024
    EPS:May 17, 2021
    EPSS Score:0.08973
    CVSS Score:5.9

    Affected Products

    Vendor
    Dlink
    Product
    Dir-842e
    Vendor
    Dlink
    Product
    Dir-842e Firmware

    Exploits

    https://blog.whtaguy.com/2021/05/d-link-router-cve-2021-27342.htmlhttps://github.com/guywhataguy/D-Link-CVE-2021-27342-exploit/blob/main/dlink-telnet-exploit-CVE-2021-27342.pyhttps://blog.whtaguy.com/2021/05/d-link-router-cve-2021-27342.htmlhttps://github.com/guywhataguy/D-Link-CVE-2021-27342-exploit/blob/main/dlink-telnet-exploit-CVE-2021-27342.pyhttps://github.com/mavlevin/D-Link-CVE-2021-27342-exploit

    Common Weakness Enumeration

    CWE-203 Observable Discrepancy

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-189 Black Box Reverse Engineering

    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