Vulnerability Note VU#628568
Sierra Wireless GX, ES, and LS gateways running ALEOS contain hard-coded credentials
Original Release date: 07 Aug 2015 | Last revised: 10 Aug 2015

Overview
Sierra Wireless GX, ES, and LS gateway devices running ALEOS versions 4.4.1 and earlier contain hard-coded credentials.

Description
CWE-259: Use of Hard-coded Password – CVE-2015-2897
Sierra Wireless GX, ES, and LS gateways running ALEOS contain multiple hard-coded accounts with root privileges. These accounts are enabled by default and accessible by telnet or SSH in systems using ALEOS 4.3.4 or earlier. The accounts also exist and are enabled in versions 4.3.5 to 4.4.1, though remote access is disabled by default.

Impact
A remote, unauthenticated attacker may be able to gain full control of an affected device.

Solution
Apply an update

Sierra Wireless has released version 4.4.2 to address this issue by disabling access to the hard-coded accounts by default. Users unable or unwilling to update may also consider the following workaround.
Restrict access

As a general good security practice, only allow connections from trusted hosts and networks. Restricting access would prevent an attacker from using credentials from a blocked network location. Refer to the Sierra Wireless technical bulletin for more information about restricting access.

Vendor Information (Learn More)

VendorStatusDate NotifiedDate UpdatedSierra WirelessAffected17 Jul 201503 Aug 2015If you are a vendor and your product is affected, let
us know.

CVSS Metrics (Learn More)

Group
Score
Vector

Base
10.0
AV:N/AC:L/Au:N/C:C/I:C/A:C

Temporal
8.3
E:F/RL:OF/RC:C

Environmental
6.7
CDP:MH/TD:M/CR:ND/IR:H/AR:ND

References

http://source.sierrawireless.com/resources/airlink/software_reference_docs/technical-bulletin/sierra-wireless-technical-bulletin—cve-2015-2897/
http://source.sierrawireless.com/resources/airlink/software_reference_docs/release-notes/aleos-4,-d-,4,-d-,2-release-notes/
http://cwe.mitre.org/data/definitions/259.html

Credit

Thanks to the reporter who wishes to remain anonymous.
This document was written by Joel Land.

Other Information

CVE IDs:
CVE-2015-2897

Date Public:
07 Aug 2015

Date First Published:
07 Aug 2015

Date Last Updated:
10 Aug 2015

Document Revision:
41

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