CVE-2017-16778

MEDIUM

4.6

Description

An access control weakness in the DTMF tone receiver of Fermax Outdoor Panel allows physical attackers to inject a Dual-Tone-Multi-Frequency (DTMF) tone to invoke an access grant that would allow physical access to a restricted floor/level. By design, only a residential unit owner may allow such an access grant. However, due to incorrect access control, an attacker could inject it via the speaker unit to perform an access grant to gain unauthorized access, as demonstrated by a loud DTMF tone representing '1' and a long '#' (697 Hz and 1209 Hz, followed by 941 Hz and 1477 Hz).

CVE Details

CVSS v3.1 Score4.6

SeverityMEDIUM

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

Attack VectorPHYSICAL

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published12/24/2019

Last Modified11/21/2024

Sourcenvd

Honeypot Sightings0

Affected Products

fermax:outdoor_panelfermax:outdoor_panel_firmware

Weaknesses (CWE)

CWE-863

References

https://github.com/breaktoprotect/CVE-2017-16778-Intercom-DTMF-Injection(cve@mitre.org)

https://github.com/breaktoprotect/CVE-2017-16778-Intercom-DTMF-Injection(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

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