title: A vulnerability exists in the handling of a malformed IEC 104 TCP packet. Upon receiving a malformed IEC 104 TCP packet, the malformed packet is dropped, however the TCP connection is left open. This may cause a denial-of-service if the affected conne ...
description: Improper Input Validation vulnerability in the handling of a malformed IEC 104 TCP packet in the Hitachi Energy MicroSCADA X SYS600, MicroSCADA Pro SYS600. Upon receiving a malformed IEC 104 TCP packet, the malformed packet is dropped, however the TCP connection is left open. This may cause a denial-of-service if the affected connection is left open. This issue affects: Hitachi Energy MicroSCADA Pro SYS600 version 9.4 FP2 Hotfix 4 and earlier versions Hitachi Energy MicroSCADA X SYS600 version 10 to version 10.3.1. cpe:2.3:a:hitachienergy:microscada_pro_sys600:9.0:*:*:*:*:*:*:* cpe:2.3:a:hitachienergy:microscada_pro_sys600:9.1:*:*:*:*:*:*:* cpe:2.3:a:hitachienergy:microscada_pro_sys600:9.2:*:*:*:*:*:*:* cpe:2.3:a:hitachienergy:microscada_pro_sys600:9.3:*:*:*:*:*:*:* cpe:2.3:a:hitachienergy:microscada_pro_sys600:9.4:*:*:*:*:*:*:* cpe:2.3:a:hitachienergy:microscada_x_sys600:10:*:*:*:*:*:*:* cpe:2.3:a:hitachienergy:microscada_x_sys600:10.1:*:*:*:*:*:*:* cpe:2.3:a:hitachienergy:microscada_x_sys600:10.1.1:*:*:*:*:*:*:* cpe:2.3:a:hitachienergy:microscada_x_sys600:10.2:*:*:*:*:*:*:* cpe:2.3:a:hitachienergy:microscada_x_sys600:10.2.1:*:*:*:*:*:*:* cpe:2.3:a:hitachienergy:microscada_x_sys600:10.3:*:*:*:*:*:*:* cpe:2.3:a:hitachienergy:microscada_x_sys600:10.3.1:*:*:*:*:*:*:*
problem types: CWE-20 Improper Input Validation
affected:
{
product: MicroSCADA X SYS600
vendor: Hitachi Energy
versions:
status: affected, version: 10
status: affected, version: 10.1
status: affected, version: 10.1.1
status: affected, version: 10.2
status: affected, version: 10.2.1
status: affected, version: 10.3
status: affected, version: 10.3.1
}
{
product: MicroSCADA Pro SYS600
vendor: Hitachi Energy
versions:
lessThanOrEqual: 9.2 FP2 Hotfix 4, status: affected, version: unspecified, versionType: custom
}
metrics:
cvssV3_1: [
attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: LOW
baseScore: 5.3
baseSeverity: MEDIUM
confidentialityImpact: NONE
integrityImpact: NONE
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
version: 3.1
]
solutions: Remediated in SYS600 10.4
For MicroSCADA Pro SYS600  - Upgrade to at least SYS600 version 10.4.
For MicroSCADA X SYS600  - Update to at least SYS600 version 10.4.
workarounds: Apply general mitigation factors as specify in the advisory.