ABB HMI Hardcoded Credentials

2019.06.25
Credit: xen1thLabs
Risk: Low
Local: Yes
Remote: No
CWE: CWE-798


CVSS Base Score: 5.8/10
Impact Subscore: 6.4/10
Exploitability Subscore: 6.5/10
Exploit range: Adjacent network
Attack complexity: Low
Authentication: No required
Confidentiality impact: Partial
Integrity impact: Partial
Availability impact: Partial

XL-19-009 - ABB HMI Hardcoded Credentials Vulnerability ======================================================================== Identifiers ----------- XL-19-009 CVE-2019-7225 ABBVU-IAMF-1902004 ABBVU-IAMF-1902011 ABBVU-IAMF-1902002 CVSS Score ---------- 8.8 (AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H) Affected vendor --------------- ABB (new.abb.com) Credit ------ xen1thLabs - Software Labs Vulnerability summary --------------------- The affected ABB components implement hidden administrative accounts used during the provisioning phase of the HMI interface. These credentials allow the provisioning tool "Panel Builder 600" to flash a new interface and Tags (MODBUS coils) mapping to the HMI. These identified credentials are: IdalMaster : idal123 exor : exor The credentials are sent over both HTTP(S) and FTP. There is no option to disable or change these undocumented credentials. Technical details ----------------- An attacker can use these credentials to login to any ABB HMI type CP635 to read/write HMI configuration files and reset the device. Combining these actions can push malicious configuration and HMI code to the device. Affected systems ---------------- CP620, order code: 1SAP520100R0001, revision index G1 with BSP UN31 V1.76 and prior CP620, order code: 1SAP520100R4001, revision index G1 with BSP UN31 V1.76 and prior CP620-WEB, order code: 1SAP520200R0001, revision index G1 with BSP UN31 V1.76 and prior CP630, order code: 1SAP530100R0001, revision index G1 with BSP UN31 V1.76 and prior CP630-WEB, order code: 1SAP530200R0001, revision index G1 with BSP UN31 V1.76 and prior CP635, order code: 1SAP535100R0001, revision index G1 with BSP UN31 V1.76 and prior CP635, order code: 1SAP535100R5001, revision index G1 with BSP UN31 V1.76 and prior CP635-B, order code: 1SAP535100R2001, revision index G1 with BSP UN31 V1.76 and prior CP635-WEB, order code: 1SAP535200R0001, revision index G1 with BSP UN31 V1.76 and prior PB610 Panel Builder 600, order code: 1SAP500900R0101, versions 1.91 ... 2.8.0.3674CP651, order code: 1SAP551100R0001, revision index B1 with BSPUN30 V1.76 and prior CP651-WEB, order code: 1SAP551200R0001, revision index A0 with BSP UN30 V1.76 and prior CP661, order code: 1SAP561100R0001, revision index B1 with BSP UN30 V1.76 and prior CP661-WEB, order code: 1SAP561200R0001, revision index A0 with BSP UN30 V1.76 and prior CP665, order code: 1SAP565100R0001, revision index B1 with BSP UN30 V1.76 and prior CP665-WEB, order code: 1SAP565200R0001, revision index A0 with BSP UN30 V1.76 and prior CP676, order code: 1SAP576100R0001, revision index B1 with BSP UN30 V1.76 and prior CP676-WEB, order code: 1SAP576200R0001, revision index A0 with BSP UN30 V1.76 and prior Solution -------- Apply the patches or changes recommended by the vendor in their vulnerability advisories: - ABB CP635 HMI - https://search.abb.com/library/Download.aspx?DocumentID=3ADR010376&LanguageCode=en&DocumentPartId=&Action=Launch - ABB PB610 - https://search.abb.com/library/Download.aspx?DocumentID=3ADR010377&LanguageCode=en&DocumentPartId=&Action=Launch - ABB CP651 HMI - https://search.abb.com/library/Download.aspx?DocumentID=3ADR010402&LanguageCode=en&DocumentPartId=&Action=Launch Disclosure timeline ------------------- 04/02/2019 - Contacted ABB requesting disclosure coordination 05/02/2019 - Provided vulnerability details 05/06/2019 - Patch available 17/06/2019 - xen1thLabs public disclosure


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