CVE-2017-7574 Hardcoded credentials in n/a
Attackers can decrypt protected project files using a hardcoded AES key to retrieve passwords, allowing unauthorized access and modification of PLC projects.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2017-7574?
CVE-2017-7574 is a critical vulnerability in n/a, published on 6 Apr 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Which versions are affected by CVE-2017-7574?
It affects 2 products.
Products include Schneider-Electric Modicon Tm221ce16r Firmware, Schneider-Electric Somachine.
How do I fix CVE-2017-7574?
No fix has been published for CVE-2017-7574 yet. Limit exposure of the affected software until one is available.
Is CVE-2017-7574 being exploited?
There is no known exploitation of CVE-2017-7574 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-v5jg-gm3q-h894.