REDHAT-BUG-2329846: High severity ceph radosgw oidc provider vulnerability
This vulnerability affects the RadosGW OIDC provider by allowing attackers to bypass authentication using JWTs with "none" as the algorithm (alg). The lack of signature enforcement creates a serious risk of unauthorized access and privilege escalation.
The vulnerability is probably in the RadosGW OIDC provider.
PoC
The HTTP request can be found below. But without the JWT:
POST / HTTP/2 Host: storage.xxx.se User-Agent: aws-sdk-go-v2/1.18.0 os/macos lang/go/1.21.1 X:nocoverageredesign md/GOOS/darwin md/GOARCH/arm64 api/sts/1.19.0 Content-Type: application/x-www-form-urlencoded Amz-Sdk-Invocation-Id: 30a74697-7d7e-4c02-b041-97d68156ee78 Amz-Sdk-Request: attempt=1; max=3 Content-Length: 1508 Accept-Encoding: gzip, deflate, br
Action=AssumeRoleWithWebIdentity&DurationSeconds=3600&RoleArn=arn%3Aaws%3Aiam%3A%3Aorgpentest002%3Arole%2Fu-pentest002STS&RoleSessionName=test&Version=2011-06-15&WebIdentityToken=ey..
Affected Software
Event History
Frequently Asked Questions
What is the severity of REDHAT-BUG-2329846?
The severity of REDHAT-BUG-2329846 is high due to the potential for unauthorized access and privilege escalation.
How do I fix REDHAT-BUG-2329846?
To fix REDHAT-BUG-2329846, update the RadosGW OIDC provider to the patched version that enforces signature validation for JWTs.
What is affected by REDHAT-BUG-2329846?
REDHAT-BUG-2329846 affects the Ceph RadosGW OIDC provider specifically.
What type of attack does REDHAT-BUG-2329846 allow?
REDHAT-BUG-2329846 allows attackers to bypass authentication using unsigned JWTs with "none" as the algorithm.
Is REDHAT-BUG-2329846 related to privilege escalation?
Yes, REDHAT-BUG-2329846 poses a risk of privilege escalation by allowing unauthorized users to gain elevated access.