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icsIndustrial Control Systems Cyber Emergency Response TeamAA24-131A
HistoryMay 10, 2024 - 12:00 p.m.

#StopRansomware: Black Basta

2024-05-1012:00:00
Industrial Control Systems Cyber Emergency Response Team
www.cisa.gov
12
updates
firmware
phishing-resistant mfa
user training
critical infrastructure

10 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

6.1 Medium

AI Score

Confidence

High

9.3 High

CVSS2

Access Vector

Access Complexity

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:M/Au:N/C:C/I:C/A:C

0.967 High

EPSS

Percentile

99.7%

Actions for critical infrastructure organizations to take today to mitigate cyber threats from ransomware:

  1. Install updates for operating systems, software, and firmware as soon as they are released.
  2. Require phishing-resistant MFA for as many services as possible.
  3. Train users to recognize and report phishing attempts.

References

10 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

6.1 Medium

AI Score

Confidence

High

9.3 High

CVSS2

Access Vector

Access Complexity

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:M/Au:N/C:C/I:C/A:C

0.967 High

EPSS

Percentile

99.7%