Summary
An attacker with elevated permissions in CodeBuild could leak
the configured credentials for Github/Bitbucket. This was possible by
configuring the http_proxy and https_proxy variables, which would allow
you to capture the credentials via MITM.
Affected Services
AWS CodeBuild
Remediation
None required
Tracked CVEs
No tracked CVEs
References
https://www.halborn.com/blog/post/halborn-discovers-and-discloses-vulnerability-in-aws-code-buildhttps://cloud.hacktricks.xyz/pentesting-cloud/aws-pentesting/aws-post-exploitation/aws-codebuild-post-exploitation/aws-codebuild-token-leakage
Contributed by https://github.com/ramimac
Disclosure Date
Wed, Jan 18th, 2023
Exploitablity Period
-
Known ITW Exploitation
-
Detection Methods
-
Piercing Index Rating
-
Discovered by
Carlos Polop, Halborn
