GHSA-x5r5-2qrx-rqj8 Transparent TLS may not be applied to Marbles with certain manifest configurations
Attackers can intercept unencrypted traffic between Marbles if Transparent TLS is misconfigured, exposing sensitive data in transit.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is GHSA-x5r5-2qrx-rqj8?
GHSA-x5r5-2qrx-rqj8 is a vulnerability in github.com/edgelesssys/marblerun, published on 27 Feb 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Transparent TLS (TTLS) is a MarbleRun feature that wraps plain TCP connections between Marbles in TLS. In the manifest, a user defines the connections that should be considered.
Impact
If a Marble is configured for TTLS, but doesn't have an environment variable defined in its parameters, TTLS is not applied. The traffic will not be encrypted.
MarbleRun deployments that don't use TTLS (which is only available with EGo Marbles) are not affected.
Patches
The issue has been patched in v1.4.1.
Workarounds
Make sure that all Marbles that use TTLS have an environment variable defined in their parameters.
References
For a description of TTLS, see <https://docs.edgeless.systems/marblerun/features/transparent-TLS> See the updated section on TTLS configuration in the manifest: <https://docs.edgeless.systems/marblerun/workflows/define-manifest#tls>
Which versions are affected by GHSA-x5r5-2qrx-rqj8?
3 open source packages ship an affected version, including github.com/edgelesssys/marblerun.
| Package | Affected | Fixed in |
|---|---|---|
github.com/edgelesssys/marblerun Go | All versions | 1.4.1 |
github.com/edgelesssys/marblerun Go | All versions | 1.4.1 |
github.com/edgelesssys/marblerun Go | All versions | 1.4.1 |
How do I fix GHSA-x5r5-2qrx-rqj8?
Upgrade github.com/edgelesssys/marblerun to 1.4.1 or later.
Is GHSA-x5r5-2qrx-rqj8 being exploited?
There is no known exploitation of GHSA-x5r5-2qrx-rqj8 in the wild and no public exploit code.
Sources
Also known as GO-2024-2583.