CVE-2020-16134

HIGH
8
CVSS Score
Published: August 4, 2020 at 06:49 PM UTC
Updated: June 17, 2026 at 02:57 AM UTC
10 products affected across 1 vendorInternet Box Light FirmwareInternet Box 2 FirmwareInternet Box Standard Firmware

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Severity
HIGH8
Exploit prediction
EPSS 0.8%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 10.04.38
Affected range stops below 10.04.38, so it looks safe — our inference, not a vendor statement
swisscom-internet-box-2 (same device)
v < 11.01.20
Affected range stops below 11.01.20, so it looks safe — our inference, not a vendor statement
swisscom-internet-box-3 (same device)
v < 08.06.06
Affected range stops below 08.06.06, so it looks safe — our inference, not a vendor statement
swisscom-internet-box-light (same device)
v < 10.04.38
Affected range stops below 10.04.38, so it looks safe — our inference, not a vendor statement
swisscom-internet-box-plus (same device)
v < 10.04.38
Affected range stops below 10.04.38, so it looks safe — our inference, not a vendor statement
swisscom-internet-box-standard (same device)
All versions
All versions
All versions
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

CVSS

Attack Vector
ADJACENT_NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-noinfo

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