Vulnerability Details : CVE-2018-17153

Public exploit exists!
It was discovered that the Western Digital My Cloud device before 2.30.196 is affected by an authentication bypass vulnerability. An unauthenticated attacker can exploit this vulnerability to authenticate as an admin user without needing to provide a password, thereby gaining full control of the device. (Whenever an admin logs into My Cloud, a server-side session is created that is bound to the user's IP address. After the session is created, it is possible to call authenticated CGI modules by sending the cookie username=admin in the HTTP request. The invoked CGI will check if a valid session is present and bound to the user's IP address.) It was found that it is possible for an unauthenticated attacker to create a valid session without a login. The network_mgr.cgi CGI module contains a command called "cgi_get_ipv6" that starts an admin session -- tied to the IP address of the user making the request -- if the additional parameter "flag" with the value "1" is provided. Subsequent invocation of commands that would normally require admin privileges now succeed if an attacker sets the username=admin cookie.
Published 2018-09-18 15:29:00
Updated 2023-07-28 16:15:11
Source MITRE
View at NVD,   CVE.org
Vulnerability category: BypassGain privilege

Products affected by CVE-2018-17153

Exploit prediction scoring system (EPSS) score for CVE-2018-17153

EPSS FAQ
46.55%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 98 %
Percentile, the proportion of vulnerabilities that are scored at or less

Metasploit modules for CVE-2018-17153

  • Western Digital MyCloud unauthenticated command injection
    Disclosure Date: 2016-12-14
    First seen: 2023-09-11
    exploit/linux/http/wd_mycloud_unauthenticated_cmd_injection
    This module exploits authentication bypass (CVE-2018-17153) and command injection (CVE-2016-10108) vulnerabilities in Western Digital MyCloud before 2.30.196 in order to achieve unauthenticated remote code execution as the root user. The module fir

CVSS scores for CVE-2018-17153

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
10.0
 HIGH AV:N/AC:L/Au:N/C:C/I:C/A:C
10.0
10.0
 NIST
9.8
 CRITICAL CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.9
5.9
 NIST

CWE ids for CVE-2018-17153

  • When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
    Assigned by: nvd@nist.gov (Primary)

References for CVE-2018-17153

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