CVE-2018-9032: An authentication bypass vulnerability on D-Link DIR-850L Wireless AC1200 Dual Band Gigabit Cloud Router (Hardware Version : A1, B1; Firmware Version…

PriorityP273critical9.8CVSS 3.1

AVNACLPRNUINSUCHIHAH

EXPLOIT

EPSS

28.76%

97.9th percentile

An authentication bypass vulnerability on D-Link DIR-850L Wireless AC1200 Dual Band Gigabit Cloud Router (Hardware Version : A1, B1; Firmware Version : 1.02-2.06) devices potentially allows attackers to bypass SharePort Web Access Portal by directly visiting /category_view.php or /folder_view.php.

Affected

1 ranges

Vendor	Product	Version range	Fixed in
dlink	dir-850l_firmware	1.02 – 2.06	—

Detection & IOCsextracted from sources · hover to see the quote

path/category_view.php↗

path/folder_view.php↗

→Monitor for unauthenticated HTTP requests directly to /category_view.php or /folder_view.php on D-Link DIR-850L devices, which indicates an authentication bypass attempt against the SharePort Web Access Portal. ↗
→Alert on HTTP GET requests to /category_view.php or /folder_view.php originating from external/untrusted sources without a prior authenticated session on the router's web interface. ↗

·Vulnerability affects D-Link DIR-850L Hardware Versions A1 and B1 only, running Firmware Versions 1.02 through 2.06. Devices outside this hardware/firmware range are not affected. ↗
·The bypass specifically targets the SharePort Web Access Portal feature; if SharePort is disabled, the attack surface is reduced. ↗
·Exploitation may allow unauthorized read AND write access to media stored in SharePort, not just read-only access. ↗

CVSS provenance

nvdv3.19.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

nvdv2.07.5HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P

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