CVE-2018-20219

An issue was discovered on Teracue ENC-400 devices with firmware 2.56 and below. After successful authentication, the device sends an authentication cookie to the end user such that they can access the devices web administration panel. This token is hard-coded to a string in the source code (/usr/share/www/check.lp file). By setting this cookie in a browser, an attacker is able to maintain access to every ENC-400 device without knowing the password, which results in authentication bypass. Even if a user changes the password on the device, this token is static and unchanged.

CVSS v3.0 8.1 HIGH
CVSS v2.0 9.3 HIGH

8.1^/10

CVSS v3.0 : HIGH

Vector : AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitability : 2.2 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

9.3^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:M/Au:N/C:C/I:C/A:C

Exploitability : 8.6 / Impact : 10.0

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://zxsecurity.co.nz/research.html	Not Applicable
http://seclists.org/fulldisclosure/2019/Feb/48	Mailing List Third Party Advisory
http://packetstormsecurity.com/files/151802/Teracue-ENC-400-Command-Injection-Missing-Authentication.html	Third Party Advisory VDB Entry

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Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:teracue:enc-400_hdmi_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:teracue:enc-400_hdmi:-:*:*:*:*:*:*:*

Configuration 2 (hide)

AND

cpe:2.3:o:teracue:enc-400_hdmi2_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:teracue:enc-400_hdmi2:-:*:*:*:*:*:*:*

Configuration 3 (hide)

AND

cpe:2.3:o:teracue:enc-400_hdsdi_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:teracue:enc-400_hdsdi:-:*:*:*:*:*:*:*

Information

Published : 2019-03-21 09:00

Updated : 2019-03-25 12:53

NVD link : CVE-2018-20219

Mitre link : CVE-2018-20219

JSON object : View

CWE

CWE-798

Use of Hard-coded Credentials

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Products Affected

teracue

enc-400_hdmi_firmware
enc-400_hdmi
enc-400_hdmi2_firmware
enc-400_hdmi2
enc-400_hdsdi
enc-400_hdsdi_firmware

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