CVE-2020-12523

Summary

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 Software

VendorProductVersion RangeStatus
Phoenix ContactTC MGUARD RS4000 4G VZW VPN (1010461)unspecified < 8.8.3affected
Phoenix ContactTC MGUARD RS4000 4G ATT VPN (1010463)unspecified < 8.8.3affected
Phoenix ContactFL MGUARD RS4004 TX/DTX (2701876)unspecified < 8.8.3affected
Phoenix ContactFL MGUARD RS4004 TX/DTX VPN (2701877)unspecified < 8.8.3affected
Phoenix ContactTC MGUARD RS4000 3G VPN (2903440)unspecified < 8.8.3affected
Phoenix ContactTC MGUARD RS4000 4G VPN (2903586)unspecified < 8.8.3affected
InnominateInnominate mGuard rs4000 4TX/TXunspecified < 8.8.3affected
InnominateInnominate mGuard rs4000 4TX/TX VPNunspecified < 8.8.3affected
InnominateInnominate mGuard rs4000 4TX/3G/TX VPNunspecified < 8.8.3affected

Weaknesses

  • CWE-909: CWE-909 Missing Initialization of Resource

Workarounds

Instead of deactivating by configuration, network cables should be detached from affected switch ports.

ADP Enrichment

CVE Program Container

Additional References

References