Exploitalert - Database of Exploits

Western Digital My Cloud Cross Site Request Forgery

CVE	Category	Price	Severity
CVE-2021-3573	CWE-352	$5,000	High

Author	Risk	Exploitation Type	Date
Clarence	Critical	Remote	2017-03-08

CPE
cpe:cpe:/a:western_digital:my_cloud

CVSS	EPSS	EPSSP
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N	0.02192	0.50148

CVSS vector description

Metric	Value	Metric Description	Value Description
Attack vector	Network	AV	The vulnerable system is bound to the network stack and the set of possible attackers extends beyond the other options listed below, up to and including the entire Internet. Such a vulnerability is often termed “remotely exploitable” and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers). An example of a network attack is an attacker causing a denial of service by sending a specially crafted TCP packet across a wide area network (e.g., CVE-2004-0230).
Attack Complexity	Low	AC	The attacker must take no measurable action to exploit the vulnerability. The attack requires no target-specific circumvention to exploit the vulnerability. An attacker can expect repeatable success against the vulnerable system.
Privileges Required	High	PR	The attacker requires privileges that provide significant (e.g., administrative) control over the vulnerable system allowing full access to the vulnerable system’s settings and files.
Scope		S	An exploited vulnerability can affect resources beyond the security scope managed by the security authority that is managing the vulnerable component. This is often referred to as a 'privilege escalation,' where the attacker can use the exploited vulnerability to gain control of resources that were not intended or authorized.
Confidentiality	Low	C	There is some impact on confidentiality, but the attacker either does not gain control of any data, or the information obtained does not have a significant impact on the system or its operations.
Integrity	Low	I	Modification of data is possible, but the attacker does not have control over what can be modified, or the extent of what the attacker can affect is limited. The data modified does not have a direct, serious impact on the system.
Availability	None	A	There is no impact on the availability of the system; the attacker does not have the ability to disrupt access to or use of the system.

https://cxsecurity.com/ascii/WLB-2017030078

Western Digital My Cloud Cross Site Request Forgery------------------------------------------------------------------------ Western Digital My Cloud vulnerable to Cross-Site Request Forgery vulnerability ------------------------------------------------------------------------ Remco Vermeulen, January 2017 ------------------------------------------------------------------------ Abstract ------------------------------------------------------------------------ It was discovered that the Western Digital My Cloud is affected by Cross-Site Request Forgery. This issue can be combined with a command injection vulnerability (see advisory SFY201703) to gain complete control (root access) of the affected device. ------------------------------------------------------------------------ See also ------------------------------------------------------------------------ - https://securify.nl/advisory/SFY20170102/authentication_bypass_vulnerability_in_western_digital_my_cloud.html - https://securify.nl/advisory/SFY20170103/western_digital_my_cloud_vulnerable_to_multiple_command_injection_vulnerabilities.html ------------------------------------------------------------------------ Tested versions ------------------------------------------------------------------------ This issue was successfully verified on a Western Digital My Cloud model WDBCTL0020HWT running firmware version 2.21.126. The issue isn't limited to the used model since most of the products in the My Cloud series share the same (vulnerable) code. ------------------------------------------------------------------------ Fix ------------------------------------------------------------------------ There is currently no fix available. ------------------------------------------------------------------------ Details ------------------------------------------------------------------------ https://www.securify.nl/advisory/SFY20170104/western_digital_my_cloud_vulnerable_to_cross_site_request_forgery_vulnerability.html Western Digital My Cloud is a low-cost entry-level network-attached storage device. It was discovered that the Western Digital My Cloud is affected by Cross-Site Request Forgery. When combined with command injection (see advisory SFY201703) this issue allows an attacker to gain complete control (root access) of the affected device. This issue exists due to the fact that the My Cloud device lacks protection against Cross-Site Request Forgery attacks. In order to exploit this vulnerability, an attacker has to lure an authenticated My Cloud device user (some command injections require an admin user whereas others also allow users with fewer privileges) into executing a malicious link crafted to exploit a command injection in a vulnerable My Cloud device.

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