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    CVE-2017-18368

    The ZyXEL P660HN-T1A v1 TCLinux Fw $7.3.15.0 v001 / 3.40(ULM.0)b31 router distributed by TrueOnline has a command injection vulnerability in the Remote System Log forwarding function, which is accessible by an unauthenticated user. The vulnerability is in the ViewLog.asp page and can be exploited through the remote_host parameter.

    Published:May 2, 2019
    Last Modified:Nov 5, 2025
    EPS:May 2, 2019
    EPSS Score:0.93606
    CVSS Score:9.8

    CISA Notification

    Description

    The ZyXEL P660HN-T1A v1 TCLinux Fw $7.3.15.0 v001 / 3.40(ULM.0)b31 router distributed by TrueOnline has a command injection vulnerability in the Remote System Log forwarding function, which is accessible by an unauthenticated user. The vulnerability is in the ViewLog.asp page and can be exploited through the remote_host parameter.

    Required Action:

    Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

    Notes:

    No extra notes provided.

    Due Date
    Aug 28, 2023
    1110 days ago
    Alert Date
    Aug 7, 2023
    1131 days ago

    Affected Products

    Vendor
    Billion
    Product
    5200w-t
    Vendor
    Billion
    Product
    5200w-t Firmware
    Vendor
    Zyxel
    Product
    P660hn-t1a V1
    Vendor
    Zyxel
    Product
    P660hn-t1a V1 Firmware
    Vendor
    Zyxel
    Product
    P660hn-t1a V2
    Vendor
    Zyxel
    Product
    P660hn-t1a V2 Firmware

    Exploits

    https://raw.githubusercontent.com/pedrib/PoC/master/advisories/zyxel_trueonline.txthttps://seclists.org/fulldisclosure/2017/Jan/40https://ssd-disclosure.com/index.php/archives/2910https://raw.githubusercontent.com/pedrib/PoC/master/advisories/zyxel_trueonline.txthttps://seclists.org/fulldisclosure/2017/Jan/40https://ssd-disclosure.com/index.php/archives/2910

    Related CVEs

    CVE-2017-18374 (CVSS 8.8) — The ZyXEL P660HN-T1A v1 TCLinux Fw $7.3.15.0 v001 / 3.40(ULM.0)b31 router distributed by TrueOnline has two us…
    CVE-2017-18373 (CVSS 8.8) — The Billion 5200W-T TCLinux Fw $7.3.8.0 v008 130603 router distributed by TrueOnline has three user accounts w…
    CVE-2017-18372 (CVSS 8.8) — The Billion 5200W-T TCLinux Fw $7.3.8.0 v008 130603 router distributed by TrueOnline has a command injection v…
    CVE-2017-18371 (CVSS 9.8) — The ZyXEL P660HN-T1A v2 TCLinux Fw #7.3.37.6 router distributed by TrueOnline has three user accounts with def…
    CVE-2017-18370 (CVSS 8.8) — The ZyXEL P660HN-T1A v2 TCLinux Fw #7.3.37.6 router distributed by TrueOnline has a command injection vulnerab…
    CVE-2017-18369 (CVSS 9.8) — The Billion 5200W-T 1.02b.rc5.dt49 router distributed by TrueOnline has a command injection vulnerability in t…

    References

    http://www.zyxel.com/support/announcement_unauthenticated.shtml
    https://raw.githubusercontent.com/pedrib/PoC/master/advisories/zyxel_trueonline.txt
    https://seclists.org/fulldisclosure/2017/Jan/40
    https://ssd-disclosure.com/index.php/archives/2910
    https://unit42.paloaltonetworks.com/new-mirai-variant-targets-enterprise-wireless-presentation-display-systems/
    http://www.zyxel.com/support/announcement_unauthenticated.shtml
    https://raw.githubusercontent.com/pedrib/PoC/master/advisories/zyxel_trueonline.txt
    https://seclists.org/fulldisclosure/2017/Jan/40
    https://ssd-disclosure.com/index.php/archives/2910
    https://unit42.paloaltonetworks.com/new-mirai-variant-targets-enterprise-wireless-presentation-display-systems/
    https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-18368

    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