VDB-109744 · CVE-2017-11400 · GCVE-0-2017-11400

Belden Hirschmann Tofino Xenon Security Appliance prior 03.2.00 Firmware Signature permission

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.0	$0-$5k	0.00

Summaryinfo

A vulnerability described as critical has been identified in Belden Hirschmann Tofino Xenon Security Appliance. This affects an unknown function of the component Firmware Signature Handler. Executing a manipulation can lead to permission. The identification of this vulnerability is CVE-2017-11400. The attack can only be executed locally. There is no exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Belden Hirschmann Tofino Xenon Security Appliance. It has been declared as critical. This vulnerability affects an unknown code block of the component Firmware Signature Handler. The manipulation with an unknown input leads to a permission vulnerability. The CWE definition for the vulnerability is CWE-275. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

An issue has been discovered on the Belden Hirschmann Tofino Xenon Security Appliance before 03.2.00. An incomplete firmware signature allows a local attacker to upgrade the equipment (kernel, file system) with unsigned, attacker-controlled, data. This occurs because the appliance_config file is signed but the .tar.sec file is unsigned.

The bug was discovered 11/06/2017. The weakness was shared 11/20/2017 (Website). The advisory is shared for download at github.com. This vulnerability was named CVE-2017-11400 since 07/17/2017. The attack needs to be approached locally. The requirement for exploitation is a single authentication. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1222.

The vulnerability was handled as a non-public zero-day exploit for at least 14 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 03.2.00 eliminates this vulnerability.

The entries VDB-109745 and VDB-109746 are related to this item. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

Belden Hirschmann

Name

Tofino Xenon Security Appliance

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.2

VulDB Base Score: 7.8
VulDB Temp Score: 7.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.8
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Permission
CWE: CWE-275 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: Yes
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Tofino Xenon Security Appliance 03.2.00

Timelineinfo

07/17/2017 🔍
11/06/2017 +112 days 🔍
11/20/2017 +14 days 🔍
11/20/2017 +0 days 🔍
11/21/2017 +1 days 🔍
12/09/2019 +748 days 🔍

Sourcesinfo

Advisory: github.com
Status: Not defined

CVE: CVE-2017-11400 (🔍)
GCVE (CVE): GCVE-0-2017-11400
GCVE (VulDB): GCVE-100-109744
See also: 🔍

Entryinfo

Created: 11/21/2017 07:46
Updated: 12/09/2019 08:21
Changes: 11/21/2017 07:46 (59), 12/09/2019 08:21 (1)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.