Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

Go to Calendar     Go to Press Room     Go to Newsletters subscription

Search

CVE-2020-16134

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
04/08/2020
Last modified:
21/07/2021

Description

An issue was discovered on Swisscom Internet Box 2, Internet Box Standard, Internet Box Plus prior to 10.04.38, Internet Box 3 prior to 11.01.20, and Internet Box light prior to 08.06.06. Given the (user-configurable) credentials for the local Web interface or physical access to a device's plus or reset button, an attacker can create a user with elevated privileges on the Sysbus-API. This can then be used to modify local or remote SSH access, thus allowing a login session as the superuser.

Impact

Vector 3.x
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 8.00 HIGH
Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Adjacent
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x
8.00
Severity 3.x
HIGH
Vector 2.0
AV:A/AC:L/Au:S/C:C/I:C/A:C CVSS v2.0 Severity and Metrics:

Base Score: 7.70 HIGH
Vector: AV:A/AC:L/Au:S/C:C/I:C/A:C

Attack Vector (AV): Adjacent
Attack Complexity (AC): Low
Authentication (Au): Single
Confidentiality (C): Complete
Integrity (I): Complete
Availability (A): Complete

Base Score 2.0
7.70
Severity 2.0
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:swisscom:internet-box_2_firmware:*:*:*:*:*:*:*:* 10.04.38 (excluding)
cpe:2.3:h:swisscom:internet-box_2:-:*:*:*:*:*:*:*
cpe:2.3:o:swisscom:internet-box_standard_firmware:*:*:*:*:*:*:*:* 10.04.38 (excluding)
cpe:2.3:h:swisscom:internet-box_standard:-:*:*:*:*:*:*:*
cpe:2.3:o:swisscom:internet-box_plus_firmware:*:*:*:*:*:*:*:* 10.04.38 (excluding)
cpe:2.3:h:swisscom:internet-box_plus:-:*:*:*:*:*:*:*
cpe:2.3:o:swisscom:internet-box_3_firmware:*:*:*:*:*:*:*:* 11.01.20 (excluding)
cpe:2.3:h:swisscom:internet-box_3:-:*:*:*:*:*:*:*
cpe:2.3:o:swisscom:internet-box_light_firmware:*:*:*:*:*:*:*:* 08.06.06 (excluding)
cpe:2.3:h:swisscom:internet-box_light:-:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools