CVE-2017-7574
06.04.2017, 21:59
Schneider Electric SoMachine Basic 1.4 SP1 and Schneider Electric Modicon TM221CE16R 1.3.3.3 devices have a hardcoded-key vulnerability. The Project Protection feature is used to prevent unauthorized users from opening an XML protected project file, by prompting the user for a password. This XML file is AES-CBC encrypted; however, the key used for encryption (SoMachineBasicSoMachineBasicSoMa) cannot be changed. After decrypting the XML file with this key, the user password can be found in the decrypted data. After reading the user password, the project can be opened and modified with the Schneider product.Enginsight
Affected Products (NVD)
| Vendor | Product | Version |
|---|---|---|
| schneider-electric | modicon_tm221ce16r_firmware | 1.3.3.3 |
| schneider-electric | somachine | 1.4:sp1 |
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= Vulnerable software versions
Common Weakness Enumeration
- CWE-798 - Use of Hard-coded CredentialsThe software contains hard-coded credentials, such as a password or cryptographic key, which it uses for its own inbound authentication, outbound communication to external components, or encryption of internal data.
- CWE-321 - Use of Hard-coded Cryptographic KeyThe use of a hard-coded cryptographic key significantly increases the possibility that encrypted data may be recovered.
References