Exploitalert - Database of Exploits

Miele Benchmark Programming Tool 1.1.49 / 1.2.71 Privilege Escalation

CVE	Category	Price	Severity
CVE-2022-22521	CWE-xxx	Unknown	Unknown

Author	Risk	Exploitation Type	Date
Unknown	Unknown	Unknown	2022-05-01

CVSS	EPSS	EPSSP
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	1	0.99914

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	Low	PR	The attacker requires privileges that provide basic capabilities that are typically limited to settings and resources owned by a single low-privileged user. Alternatively, an attacker with Low privileges has the ability to access only non-sensitive resources.
User Interaction	None	UI	The vulnerable system can be exploited without interaction from any human user, other than the attacker. Examples include: a remote attacker is able to send packets to a target system a locally authenticated attacker executes code to elevate privileges
Scope	Unchanged	S	An exploited vulnerability can only affect resources managed by the same security authority. In the case of a vulnerability in a virtualized environment, an exploited vulnerability in one guest instance would not affect neighboring guest instances.
Confidentiality	High	C	There is total information disclosure, resulting in all data on the system being revealed to the attacker, or there is a possibility of the attacker gaining control over confidential data.
Integrity	High	I	There is a total compromise of system integrity. There is a complete loss of system protection, resulting in the attacker being able to modify any file on the target system.
Availability	High	A	There is a total shutdown of the affected resource. The attacker can deny access to the system or data, potentially causing significant loss to the organization.

https://cxsecurity.com/ascii/WLB-2022050005

Miele Benchmark Programming Tool 1.1.49 / 1.2.71 Privilege Escalation

SEC Consult Vulnerability Lab Security Advisory < 20220427-0 > ======================================================================= title: Privilege Escalation product: Miele Benchmark Programming Tool vulnerable version: at least 1.1.49 and 1.2.71 fixed version: 1.2.72 CVE number: CVE-2022-22521 impact: Medium homepage: https://www.miele.com/ found: 2022-01-24 by: J. Kruchem (Office Vienna) W. Schober (Office Vienna) SEC Consult Vulnerability Lab An integrated part of SEC Consult, an Atos company Europe | Asia | North America https://www.sec-consult.com ======================================================================= Vendor description: ------------------- "There are many good reasons for choosing Miele. Since the company's founding in 1899, Miele has remained true to its "Immer Besser" brand promise. This means that we will do all that we can to be "Immer Besser" (forever better) than our competitors and "Immer Besser" (forever better) than we already are. For our customers, this means the peace of mind of knowing that choosing Miele is a good decision and probably the decision of a lifetime." Source: https://www.mieleusa.com/c/about-us-9.htm Business recommendation: ------------------------ The vendor provides a patched version which should be installed immediately. An in-depth security analysis performed by security professionals is highly advised, as the software may be affected from further security issues. Vulnerability overview/description: ----------------------------------- 1) Privilege Escalation (CVE-2022-22521) The path where the Miele Benchmark Programming Tool is installed is writable for any user on the Windows operation system. This allows replacing the Uninstall binary and thus an attacker gaining local admin privileges if uninstalled. Proof of concept: ----------------- 1) Privilege Escalation (CVE-2022-22521) The Uninstall string can be found in the following registry entry: Computer\HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Uninstall\{<UUID of Miele Benchmark Programming>} The UninstallString field has the following value: UninstallString "C:\MIELE_SERVICE\Miele Benchmark Programming Tool\Uninstall Miele Benchmark Programming Tool.exe" /allusers For exploitation, replace the "Uninstall Miele Benchmark Programming Tool.exe" with a malicious binary and uninstall via Software Center or call the admin and let them uninstall the Miele Benchmark Programming Tool. Vulnerable / tested versions: ----------------------------- The following versions have been tested, which were the latest versions available during the time of the test: * 1.1.49 * 1.2.71 Other (lower) software versions may be affected as well. Vendor contact timeline: ------------------------ 2022-03-21: Contacting vendor through [email protected] 2022-03-22: Vendor answered that they will check the provided information 2022-04-07: Vendor confirmed the vulnerability and answered with aim to fix it asap 2022-04-11: Vendor sent their advisory (including CVE) and fixed version 2022-04-27: Coordinated release of advisory. Solution: --------- The vendor provides a patched version v1.2.72 which can be downloaded here: https://www.miele.com/en/com/downloads-6770.htm Workaround: ----------- Adapt permissions of the C:\MIELE_SERVICE directory according to the least privilege principle. Advisory URL: ------------- https://sec-consult.com/vulnerability-lab/ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ SEC Consult Vulnerability Lab SEC Consult, an Atos company Europe | Asia | North America About SEC Consult Vulnerability Lab The SEC Consult Vulnerability Lab is an integrated part of SEC Consult, an Atos company. It ensures the continued knowledge gain of SEC Consult in the field of network and application security to stay ahead of the attacker. The SEC Consult Vulnerability Lab supports high-quality penetration testing and the evaluation of new offensive and defensive technologies for our customers. Hence our customers obtain the most current information about vulnerabilities and valid recommendation about the risk profile of new technologies. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Interested to work with the experts of SEC Consult? Send us your application https://sec-consult.com/career/ Interested in improving your cyber security with the experts of SEC Consult? Contact our local offices https://sec-consult.com/contact/ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Mail: security-research at sec-consult dot com Web: https://www.sec-consult.com Blog: http://blog.sec-consult.com Twitter: https://twitter.com/sec_consult EOF J. Kruchem / @2022

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