Vulnerability Details : CVE-2017-7574
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.
Products affected by CVE-2017-7574
- cpe:2.3:a:schneider-electric:somachine:1.4:sp1:*:*:*:*:*:*
- cpe:2.3:o:schneider-electric:modicon_tm221ce16r_firmware:1.3.3.3:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2017-7574
0.58%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 75 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2017-7574
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.5
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:P |
10.0
|
6.4
|
NIST | |
|
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2017-7574
-
The product contains hard-coded credentials, such as a password or cryptographic key.Assigned by: nvd@nist.gov (Primary)
References for CVE-2017-7574
-
https://os-s.net/advisories/OSS-2017-02.pdf
Broken Link
-
http://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2017-097-01
Vendor Advisory
-
http://www.securityfocus.com/bid/97518
Schneider Electric SoMachine and Modicon CVE-2017-7574 Security Bypass VulnerabilityThird Party Advisory;VDB Entry
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