CVE-2020-12012

Baxter ExactaMix EM 2400 & EM 1200, Versions ExactaMix EM2400 Versions 1.10, 1.11, 1.13, 1.14, ExactaMix EM1200 Versions 1.1, 1.2, 1.4, 1.5, Baxter ExactaMix EM 2400 Versions 1.10, 1.11, and 1.13, and ExactaMix EM1200 Versions 1.1, 1.2, and 1.4 have hard-coded administrative account credentials for the ExactaMix application. Successful exploitation of this vulnerability may allow an attacker with physical access to gain unauthorized access to view/update system configuration or data. This could impact confidentiality and integrity of the system and risk exposure of sensitive information including PHI.

Weakness

The product contains a hard-coded password, which it uses for its own inbound authentication or for outbound communication to external components.

Affected Software

Extended Description

There are two main variations of a hard-coded password:

Potential Mitigations

• For inbound authentication: apply strong one-way hashes to your passwords and store those hashes in a configuration file or database with appropriate access control. That way, theft of the file/database still requires the attacker to try to crack the password. When receiving an incoming password during authentication, take the hash of the password and compare it to the hash that you have saved.
• Use randomly assigned salts for each separate hash that you generate. This increases the amount of computation that an attacker needs to conduct a brute-force attack, possibly limiting the effectiveness of the rainbow table method.
• For front-end to back-end connections: Three solutions are possible, although none are complete.

References

• https://www.us-cert.gov/ics/advisories/icsma-20-170-01
• https://www.us-cert.gov/ics/advisories/icsma-20-170-01