Vulnerability Description
A Weak Cryptography for Passwords issue was discovered in General Electric (GE) Multilin SR 750 Feeder Protection Relay, firmware versions prior to Version 7.47; SR 760 Feeder Protection Relay, firmware versions prior to Version 7.47; SR 469 Motor Protection Relay, firmware versions prior to Version 5.23; SR 489 Generator Protection Relay, firmware versions prior to Version 4.06; SR 745 Transformer Protection Relay, firmware versions prior to Version 5.23; SR 369 Motor Protection Relay, all firmware versions; Multilin Universal Relay, firmware Version 6.0 and prior versions; and Multilin URplus (D90, C90, B95), all versions. Ciphertext versions of user passwords were created with a non-random initialization vector leaving them susceptible to dictionary attacks. Ciphertext of user passwords can be obtained from the front LCD panel of affected products and through issued Modbus commands.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ge | Multilin Sr 750 Feeder Protection Relay Firmware | <= 5.02 |
| Ge | Multilin Sr 750 Feeder Protection Relay | - |
| Ge | Multilin Sr 760 Feeder Protection Relay Firmware | <= 5.02 |
| Ge | Multilin Sr 760 Feeder Protection Relay | - |
| Ge | Multilin Sr 469 Motor Protection Relay Firmware | <= 2.90 |
| Ge | Multilin Sr 469 Motor Protection Relay | - |
| Ge | Multilin Sr 489 Generator Protection Relay Firmware | <= 1.53 |
| Ge | Multilin Sr 489 Generator Protection Relay | - |
| Ge | Multilin Sr 745 Transformer Protection Relay Firmware | <= 2.85 |
| Ge | Multilin Sr 745 Transformer Protection Relay | - |
| Ge | Multilin Sr 369 Motor Protection Relay Firmware | - |
| Ge | Multilin Sr 369 Motor Protection Relay | - |
| Ge | Multilin Universal Relay Firmware | <= 6.0 |
| Ge | Multilin Universal Relay | - |
| Ge | Multilin Urplus D90 Firmware | - |
| Ge | Multilin Urplus D90 | - |
| Ge | Multilin Urplus C90 Firmware | - |
| Ge | Multilin Urplus C90 | - |
| Ge | Multilin Urplus B95 Firmware | - |
| Ge | Multilin Urplus B95 | - |
Related Weaknesses (CWE)
References
- http://www.securityfocus.com/bid/98063Third Party AdvisoryVDB Entry
- https://ics-cert.us-cert.gov/advisories/ICSA-17-117-01APatchThird Party AdvisoryUS Government Resource
- http://www.securityfocus.com/bid/98063Third Party AdvisoryVDB Entry
- https://ics-cert.us-cert.gov/advisories/ICSA-17-117-01APatchThird Party AdvisoryUS Government Resource
FAQ
What is CVE-2017-7905?
CVE-2017-7905 is a vulnerability with a CVSS score of 9.8 (CRITICAL). A Weak Cryptography for Passwords issue was discovered in General Electric (GE) Multilin SR 750 Feeder Protection Relay, firmware versions prior to Version 7.47; SR 760 Feeder Protection Relay, firmwa...
How severe is CVE-2017-7905?
CVE-2017-7905 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2017-7905?
Check the references section above for vendor advisories and patch information. Affected products include: Ge Multilin Sr 750 Feeder Protection Relay Firmware, Ge Multilin Sr 750 Feeder Protection Relay, Ge Multilin Sr 760 Feeder Protection Relay Firmware, Ge Multilin Sr 760 Feeder Protection Relay, Ge Multilin Sr 469 Motor Protection Relay Firmware.