CVE-2017-14116
HighSummary
The AT&T U-verse 9.2.2h0d83 firmware for the Arris NVG599 device, when IP Passthrough mode is not used, configures WAN access to a caserver https service with the tech account and an empty password. This allows remote attackers to obtain root privileges by establishing a session on port 49955 and installing new software.
Risk Assessment
Attackers can gain full control of the device, posing a serious security threat to the organization's network. The ability to install malicious software may lead to further attacks on other resources within the network.
Recommendation
It is recommended to enable IP Passthrough mode and configure a strong password for the tech account. Additionally, monitor access to port 49955 and regularly update the device firmware.
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Original NVD description (English source)
The AT&T U-verse 9.2.2h0d83 firmware for the Arris NVG599 device, when IP Passthrough mode is not used, configures WAN access to a caserver https service with the tech account and an empty password, which allows remote attackers to obtain root privileges by establishing a session on port 49955 and then installing new software, such as BusyBox with "nc -l" support.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

