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Vulnerability · Published Dec 17, 2020 · Assigned by CERTVDE

CVE-2020-12523Phoenix Contact mGuard Devices versions before 8.8.3: LAN ports get functional after reboot even if they are disabled in the device configuration

Medium 5.4

In plain English

A medium-severity security flaw in Innominate mGuard rs4000 4TX/3G/TX VPN from Innominate. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.9% (higher than 60% of all known vulnerabilities).

Severity (CVSS 3.1)5.4Medium
Exploit odds (30 days)0.9%top 40.2% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

On Phoenix Contact mGuard Devices versions before 8.8.3 LAN ports get functional after reboot even if they are disabled in the device configuration. For mGuard devices with integrated switch on the LAN side, single switch ports can be disabled by device configuration. After a reboot these ports get functional independent from their configuration setting: Missing Initialization of Resource

Affected products (as reported)

VendorProductVersions
Phoenix Contact TC MGUARD RS4000 4G VZW VPN (1010461) unspecified – before 8.8.3
Phoenix Contact TC MGUARD RS4000 4G ATT VPN (1010463) unspecified – before 8.8.3
Phoenix Contact FL MGUARD RS4004 TX/DTX (2701876) unspecified – before 8.8.3
Phoenix Contact FL MGUARD RS4004 TX/DTX VPN (2701877) unspecified – before 8.8.3
Phoenix Contact TC MGUARD RS4000 3G VPN (2903440) unspecified – before 8.8.3
Phoenix Contact TC MGUARD RS4000 4G VPN (2903586) unspecified – before 8.8.3
Innominate Innominate mGuard rs4000 4TX/TX unspecified – before 8.8.3
Innominate Innominate mGuard rs4000 4TX/TX VPN unspecified – before 8.8.3
Innominate Innominate mGuard rs4000 4TX/3G/TX VPN unspecified – before 8.8.3

Weakness: CWE-909 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L

References