Summary
AWS Control Tower was not properly logging to CloudTrail when API calls
failed due to a lack of permissions. This could have helped an adversary
with existing access to a victim AWS environment avoid detection while
enumerating privileges, since any unsuccessful API calls would not
generate "access denied" log entries.
Affected Services
Control Tower
Remediation
None required
Tracked CVEs
No tracked CVEs
References
Contributed by https://github.com/frichetten
Disclosure Date
Mon, Jan 30th, 2023
Exploitablity Period
Until 2023/02/13
Known ITW Exploitation
-
Detection Methods
-
Piercing Index Rating
-
Discovered by
Nick Frichette, Datadog
