CVE Vulnerabilities

CVE-2021-40170

Authentication Bypass by Capture-replay

Published: Dec 15, 2021 | Modified: Jan 06, 2022
CVSS 3.x
6.8
MEDIUM
Source:
NVD
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:H
CVSS 2.x
5.8 MEDIUM
AV:N/AC:M/Au:N/C:N/I:P/A:P
RedHat/V2
RedHat/V3
Ubuntu

An RF replay attack vulnerability in the SecuritasHome home alarm system, version HPGW-G 0.0.2.23F BG_U-ITR-F1-BD_BL.A30.20181117, allows an attacker to trigger arbitrary system functionality by replaying previously recorded signals. This lets an adversary, among other things, disarm an armed system.

Weakness

A capture-replay flaw exists when the design of the product makes it possible for a malicious user to sniff network traffic and bypass authentication by replaying it to the server in question to the same effect as the original message (or with minor changes).

Affected Software

Name Vendor Start Version End Version
Securitashome_alarm_system_firmware Securitashome hpgw-g_0.0.2.23f_bg_u-itr-f1-bd_bl.a30.20181117 (including) hpgw-g_0.0.2.23f_bg_u-itr-f1-bd_bl.a30.20181117 (including)

Potential Mitigations

References