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Okta AD/LDAP Delegated Authentication - Username Above 52 Characters Security Advisory #1428

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Nov 13, 2024
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Okta AD/LDAP Delegated Authentication - Username Above 52 Characters Security Advisory #1428

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20 changes: 20 additions & 0 deletions queries/okta_queries/okta_52_char_username_threat_hunt.yml
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AnalysisType: saved_query
QueryName: "Okta Username Above 52 Characters Security Advisory"
Description: >
On October 30, 2024, a vulnerability was internally identified in generating the cache key for AD/LDAP DelAuth. The Bcrypt algorithm was used to generate the cache key where we hash a combined string of userId + username + password. Under a specific set of conditions, listed below, this could allow users to authenticate by providing the username with the stored cache key of a previous successful authentication.
Customers meeting the pre-conditions should investigate their Okta System Log for unexpected authentications from usernames greater than 52 characters between the period of July 23rd, 2024 to October 30th, 2024.
https://trust.okta.com/security-advisories/okta-ad-ldap-delegated-authentication-username/
Query: |
SELECT
p_event_time as p_timeline,
*
FROM
panther_logs.public.okta_systemlog
WHERE
p_occurs_between('2024-07-22 00:00:00Z','2024-11-01 00:00:00Z')
AND actor:type = 'User'
AND eventType = 'user.session.start'
AND outcome:result = 'SUCCESS'
AND LEN(actor:alternateId) >= 52
ORDER by p_event_time ASC NULLS LAST
LIMIT 100
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