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cve[email protected]CVE-2020-16134
HistoryAug 04, 2020 - 7:15 p.m.

CVE-2020-16134

2020-08-0419:15:12
web.nvd.nist.gov
38
swisscom
internet box
cve-2020-16134
vulnerability
privilege escalation
sysbus-api
ssh access
superuser
nvd

7.7 High

CVSS2

Attack Vector

ADJACENT_NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:A/AC:L/Au:S/C:C/I:C/A:C

8 High

CVSS3

Attack Vector

ADJACENT

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

7.5 High

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

12.8%

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 configurations

NVD
Node
swisscominternet-box_2_firmwareRange<10.04.38
AND
swisscominternet-box_2Match-
Node
swisscominternet-box_standard_firmwareRange<10.04.38
AND
swisscominternet-box_standardMatch-
Node
swisscominternet-box_plus_firmwareRange<10.04.38
AND
swisscominternet-box_plusMatch-
Node
swisscominternet-box_3_firmwareRange<11.01.20
AND
swisscominternet-box_3Match-
Node
swisscominternet-box_light_firmwareRange<08.06.06
AND
swisscominternet-box_lightMatch-

7.7 High

CVSS2

Attack Vector

ADJACENT_NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:A/AC:L/Au:S/C:C/I:C/A:C

8 High

CVSS3

Attack Vector

ADJACENT

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

7.5 High

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

12.8%

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