CVE Vulnerabilities

CVE-2019-11856

Authentication Bypass by Capture-replay

Published: Aug 21, 2020 | Modified: Feb 09, 2022
CVSS 3.x
3.8
LOW
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:L
CVSS 2.x
5.5 MEDIUM
AV:N/AC:L/Au:S/C:N/I:P/A:P
RedHat/V2
RedHat/V3
Ubuntu

A nonce reuse vulnerability exists in the ACEView service of ALEOS before 4.13.0, 4.9.5, and 4.4.9 allowing message replay. Captured traffic to the ACEView service can be replayed to other gateways sharing the same credentials.

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
Aleos Sierrawireless * 4.12.0 (including)

Potential Mitigations

References