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Advisories

Buffalo TeraStation TS5400R Excessive File Permissions Information Disclosure

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severity
medium
date
Affecting

  • TeraStation NAS TS5400R firmware versions <= 4.02-0.06

  • An affected firmware range remains undefined

  • This product has reached end-of-life status

CWE
  • CWE-732 Incorrect Permission Assignment for Critical Resource
CVSS
6.9
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Credit
Victor A. Morales, Senior Pentester Team Leader, GM Sectec, Corp, Omar Crespo, Pentester, GM Sectec, Corp.
Description
Buffalo TeraStation NAS TS5400R firmware version 4.02-0.06 and prior contain an excessive file permissions vulnerability that allows authenticated attackers to read the /etc/shadow file by uploading and executing a PHP file through the webserver. Attackers can exploit world-readable permissions on /etc/shadow to retrieve hashed passwords for all configured accounts including root.

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