Unauthenticated Access to Gateway Management Interface

Comelit Multi-User Gateway for VIP System (model 1456B) firmware versions 2.9.1 and 2.10.0 expose a network-accessible management interface that does not require authentication. Through this interface, sensitive device configuration data - including the Remote Configuration Password - can be read in cleartext by a remote, unauthenticated attacker.

Casky was already ahead

This CVE exploits attack patterns that Casky's 283matched skills already investigate — long before this vulnerability was disclosed. Claude's reasoning model maps these techniques to MITRE ATT&CK, so practitioners who ran these skills have already seen the threat behaviour in their findings.

Analysis

CVE-2026-80276 affects Comelit Multi-User Gateway devices (model 1456B) running firmware versions 2.9.1 and 2.10.0, exposing a critical authentication bypass in the network-accessible management interface. An unauthenticated remote attacker can directly access this interface and extract sensitive configuration data, including the Remote Configuration Password, transmitted in cleartext. This vulnerability is particularly concerning for organizations deploying these gateways in access control or intercom systems, as it enables complete compromise of device management capabilities and downstream lateral movement. The lack of authentication controls on a management interface represents a fundamental security failure that contradicts basic secure design principles.

Casky's 283 mapped skills detect the attack patterns underlying this vulnerability by correlating evidence across MITRE ATT&CK techniques TA0004 (Privilege Escalation) and TA0006 (Credential Access). Practitioners using Casky would identify reconnaissance attempts probing the management interface on standard ports, followed by unauthenticated connection establishment without challenge-response mechanisms. Claude's extended reasoning capability traces the attack chain: initial network reconnaissance (TA0004) leading to discovery of the unprotected interface, followed by credential harvesting when cleartext passwords are retrieved (TA0006). Findings would surface anomalies such as remote management access lacking proper authentication headers, unexpected cleartext credential exposure in network streams, and configuration reads from external IP addresses—all indicative of this CWE-306 (Missing Authentication for Critical Function) exploitation pattern.

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Casky Risk Score

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EPSS Probability

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Shodan Exposure

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GreyNoise Signal

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Composite risk scoring from EPSS, CISA KEV, Shodan, and GreyNoise — 21 security APIs correlated into a single Casky Risk Score. Coming in Casky Pro. Join early access →

283 Casky skills cover this attack pattern

These skills use Claude AI's reasoning model to surface findings in the same attack categories as CVE-2026-80276.

abusing-dpapi-for-credential-access

red teaming · high

Run

abusing-shadow-credentials-for-privesc

red teaming · high

Run

Access with Stolen Session Cookie

identity access management · low

Run

MITRE ATT&CK Techniques

TA0004 TA0006

Investigate the attack patterns behind CVE-2026-80276

Casky has 283 skills that investigate the attack patterns behind CVE-2026-80276. Run one and get CVSS-scored findings in 3 minutes.

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