CVE-2018-16221 (ultra-elegant_ip_phone_sip-t41p_firmware)

The diagnostics web interface in the Yeahlink Ultra-elegant IP Phone SIP-T41P (firmware 66.83.0.35) does not validate (escape) the path information (path traversal), which allows an authenticated remote attacker to get access to privileged information (e.g., /etc/passwd) via path traversal (relative path information in the file parameter of the corresponding POST request).
Source: NIST
CVE-2018-16221 (ultra-elegant_ip_phone_sip-t41p_firmware)

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