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GHSA-7xg2-83f8-39mr

Published Jan 3, 2024·Last modified Jun 28, 2024
Affected Components(0)

No affected components available

Description

Impact

What kind of vulnerability is it? Who is impacted?

The Karmada components deployed with karmadactl, karma-operator, and helm chart take Golang default cipher suites as part of the TLS protocol, which includes the insecure algorithm. Referring to https://github.com/golang/go/issues/41476#issuecomment-694914728, the 3DES algorithm vulnerability is very unlikely to be attacked. However, to address the concerns and to avoid being disturbed by the security scanner, Karmada has decided to limit the cipher suites to exclude the insecure 3DES algorithm and accordingly release this security advisory.

The components affected are：

  • karmada-apiserver
  • karmada-aggregated-apiserver
  • karmada-search
  • karmada-metrics-adapter
  • etcd

Patches

Has the problem been patched? What versions should users upgrade to?

From Karmada v1.8.0, when deploying Karmada with karmadactl, karma-operator, and helm chart, the default minimum TLS version of components(include karmada-apiserver, karmada-aggregated-apiserver, karmada-search, and karmada-metrics-adapter) would be set to TLS1.3 to get rid of the insecure algorithm, and set default cipher suites(TLS_RSA_WITH_AES_128_CBC_SHA,TLS_RSA_WITH_AES_256_CBC_SHA,TLS_RSA_WITH_AES_128_GCM_SHA256,TLS_RSA_WITH_AES_256_GCM_SHA384,TLS_AES_128_GCM_SHA256,TLS_AES_256_GCM_SHA384,TLS_CHACHA20_POLY1305_SHA256,TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA,TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA,TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA,TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305) for etcd.

Workarounds

Is there a way for users to fix or remediate the vulnerability without upgrading?

By setting the --tls-min-version for the affected components to TLS 1.3, or explicitly setting the --cipher-suites to secure algorithms.

References

Are there any links users can visit to find out more?

  1. Enhancements made from the Karmada community: https://github.com/karmada-io/karmada/issues/4191
  2. Impact discussions from the Golang community: https://github.com/golang/go/issues/41476
Risk Scores
Base Score
0.0

Measures severity based on intrinsic characteristics of the vulnerability, independent of environment.

Threat Intelligence
0.0

No exploitation activity has been observed at this time. Continue routine monitoring.

EPSS
N/A

Probability that this vulnerability will be exploited in the wild within the next 30 days.

Exploit
Not available

We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.

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