CVE-2017-16778

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Summary

CVECVE-2017-16778
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2019-12-24 14:15:00 UTC
Updated2020-01-08 22:07:00 UTC
DescriptionAn 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).

Risk And Classification

Problem Types: CWE-863

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Hardware Fermax Outdoor Panel - All All All
Hardware Fermax Outdoor Panel - All All All
Operating System Fermax Outdoor Panel Firmware - All All All
Operating System Fermax Outdoor Panel Firmware - All All All

References

ReferenceSourceLinkTags
GitHub - breaktoprotect/CVE-2017-16778-Intercom-DTMF-Injection: A coordinated disclosure and security advisory on Fermax Intercom DTML Injection vulneraiblity. Special thanks to Fermax International for prompt responses and allowing details to be publicized. MISC github.com Third Party Advisory
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