Multiple SSO MFA attempts were rejected by a user

Cortex XDR Analytics Alert Reference by Alert name

Product
Cortex XDR
Last date published
2024-06-18
Category
Analytics Alert Reference
Order
Alert name

Synopsis

Activation Period

14 Days

Training Period

30 Days

Test Period

1 Hour

Deduplication Period

1 Day

Required Data

  • Requires:
    • Okta

Detection Modules

Identity Analytics

ATT&CK Tactic

ATT&CK Technique

Severity

Informational

Description

Multiple SSO MFA attempts were rejected by a user. This may indicate an MFA request flooding attack.

Attacker's Goals

An attacker is attempting to gain access to an account secured with MFA.

Investigative actions

  • Verify the reasoning behind the MFA request rejections.
  • Follow further actions performed by the user.
  • Verify any successful authentication by the user.

Variations

User rejected numerous SSO MFA attempts

Synopsis

ATT&CK Tactic

ATT&CK Technique

Severity

Medium

Description

A user rejected numerous SSO MFA attempts, which may indicate an MFA flooding attack.

Attacker's Goals

An attacker is attempting to gain access to an account secured with MFA.

Investigative actions

  • Verify the reasoning behind the MFA request rejections.
  • Follow further actions performed by the user.
  • Verify any successful authentication by the user.


Multiple SSO MFA attempts were rejected by a user with suspicious characteristics

Synopsis

ATT&CK Tactic

ATT&CK Technique

Severity

Low

Description

A user rejected multiple SSO MFA attempts with suspicious characteristics.

Attacker's Goals

An attacker is attempting to gain access to an account secured with MFA.

Investigative actions

  • Verify the reasoning behind the MFA request rejections.
  • Follow further actions performed by the user.
  • Verify any successful authentication by the user.