CWE
22
Advisory Published
Updated

CVE-2018-16221: Path Traversal

First published: Wed May 29 2019(Updated: )

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).

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
Yealink Ultra-elegant IP Phone SIP-T41P=66.83.0.35
Yealink Ultra-elegant IP Phone SIP-T41P

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Frequently Asked Questions

  • What is the vulnerability ID for this issue?

    The vulnerability ID for this issue is CVE-2018-16221.

  • What is the severity of CVE-2018-16221?

    The severity of CVE-2018-16221 is high (8.0).

  • Which software is affected by CVE-2018-16221?

    The Yeahlink Ultra-elegant IP Phone SIP-T41P firmware version 66.83.0.35 is affected by CVE-2018-16221.

  • What is the vulnerability type for CVE-2018-16221?

    CVE-2018-16221 is a path traversal vulnerability.

  • How can an attacker exploit CVE-2018-16221?

    An authenticated remote attacker can exploit CVE-2018-16221 by using path traversal to access privileged information.

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