National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2017-17910 Detail

Current Description

On Hoermann BiSecur devices before 2018, a vulnerability can be exploited by recording a single radio transmission. An attacker can intercept an arbitrary radio frame exchanged between a BiSecur transmitter and a receiver to obtain the encrypted packet and the 32-bit serial number. The interception of the one-time pairing process is specifically not required. Due to use of AES-128 with an initial static random value and static data vector (all of this static information is the same across different customers' installations), the attacker can easily derive the utilized encryption key and decrypt the intercepted packet. The key can be verified by decrypting the intercepted packet and checking for known plaintext. Subsequently, an attacker can create arbitrary radio frames with the correct encryption key to control BiSecur garage and entrance gate operators and possibly other BiSecur systems as well ("wireless cloning"). To conduct the attack, a low cost Software Defined Radio (SDR) is sufficient. This affects Hoermann Hand Transmitter HS5-868-BS, HSE1-868-BS, and HSE2-868-BS devices.

Source:  MITRE      Last Modified:  12/29/2017      View Analysis Description

Quick Info

CVE Dictionary Entry:
CVE-2017-17910
Original release date:
12/29/2017
Last revised:
01/16/2018
Source:
US-CERT/NIST

Impact

CVSS Severity (version 3.0):
CVSS v3 Base Score:
6.5 Medium
Vector:
CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H (legend)
Impact Score:
3.6
Exploitability Score:
2.8
CVSS Version 3 Metrics:
Attack Vector (AV):
Adjacent
Attack Complexity (AC):
Low
Privileges Required (PR):
None
User Interaction (UI):
None
Scope (S):
Unchanged
Confidentiality (C):
None
Integrity (I):
None
Availability (A):
High
CVSS Severity (version 2.0):
CVSS v2 Base Score:
3.3 LOW
Vector:
(AV:A/AC:L/Au:N/C:N/I:N/A:P) (legend)
Impact Subscore:
2.9
Exploitability Subscore:
6.5
CVSS Version 2 Metrics:
Access Vector:
Local network exploitable
Access Complexity:
Low
Authentication:
Not required to exploit
Impact Type:
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource Type Source Name
https://docs.wixstatic.com/ugd/28ba71_6ecc3158975a484d827e935edda4fa17.pdf Technical Description; Third Party Advisory External Source MISC https://docs.wixstatic.com/ugd/28ba71_6ecc3158975a484d827e935edda4fa17.pdf
https://www.trustworks.at/publications Third Party Advisory External Source MISC https://www.trustworks.at/publications

Technical Details

Vulnerability Type (View All)

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