CVE-2017-7905 Information

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 Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Reference

http://www.securityfocus.com/bid/98063 https://ics-cert.us-cert.gov/advisories/ICSA-17-117-01A

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8