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x/vulndb: potential Go vuln in github.com/cilium/cilium: GHSA-4hc4-pgfx-3mrx #1642

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GoVulnBot opened this issue Mar 17, 2023 · 0 comments
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excluded: NOT_GO_CODE This vulnerability does not refer to a Go module.

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In GitHub Security Advisory GHSA-4hc4-pgfx-3mrx, there is a vulnerability in the following Go packages or modules:

Unit Fixed Vulnerable Ranges
github.com/cilium/cilium 1.13.1 >= 1.13.0, < 1.13.1

Cross references:

See doc/triage.md for instructions on how to triage this report.

modules:
  - module: github.com/cilium/cilium
    versions:
      - introduced: 1.13.0
        fixed: 1.13.1
    packages:
      - package: github.com/cilium/cilium
  - module: github.com/cilium/cilium
    versions:
      - introduced: 1.12.0
        fixed: 1.12.8
    packages:
      - package: github.com/cilium/cilium
  - module: github.com/cilium/cilium
    versions:
      - fixed: 1.11.15
    packages:
      - package: github.com/cilium/cilium
summary: cilium-agent container can access the host via `hostPath` mount
description: "### Impact\n\nAn attacker with access to a Cilium agent pod can write
    to `/opt/cni/bin` due to a `hostPath` mount of that directory in the agent pod.
    By replacing the CNI binary with their own malicious binary and waiting for the
    creation of a new pod on the node, the attacker can gain access to the underlying
    node. \n\n### Patches\n\nThe issue has been fixed and is available on versions
    >=1.11.15, >=1.12.8, >=1.13.1.\n\n### Workarounds\n\n[Kubernetes RBAC](https://kubernetes.io/docs/reference/access-authn-authz/rbac/)
    should be used to deny users and service accounts `exec` access to Cilium agent
    pods.\n\nIn cases where a user requires `exec` access to Cilium agent pods, but
    should not have access to the underlying node, no workaround is possible.\n\n###
    References\n\n* [PR containing resolution](https://github.com/cilium/cilium/pull/24075)\n\n###
    Acknowledgements\n\nThe Cilium community has worked together with members of Isovalent
    and Form3 to prepare these mitigations. Special thanks to Anastasios Koutlis,
    Daniel Teixeira, and Magdalena Oczadly for their cooperation. \n\n### For more
    information\n\nIf you have any questions or comments about this advisory, please
    reach out on [Slack](https://docs.cilium.io/en/latest/community/community/#slack).\n\nAs
    usual, if you think you found a related vulnerability, we strongly encourage you
    to report security vulnerabilities to our private security mailing list: security@cilium.io
    - first, before disclosing them in any public forums. This is a private mailing
    list where only members of the Cilium internal security team are subscribed to,
    and is treated as top priority. "
cves:
  - CVE-2023-27593
ghsas:
  - GHSA-4hc4-pgfx-3mrx
references:
  - advisory: https://github.com/cilium/cilium/security/advisories/GHSA-4hc4-pgfx-3mrx
  - fix: https://github.com/cilium/cilium/pull/24075
  - advisory: https://github.com/advisories/GHSA-4hc4-pgfx-3mrx

@jba jba self-assigned this Mar 21, 2023
@jba jba added excluded: EFFECTIVELY_PRIVATE This vulnerability exists in a package can be imported, but isn't meant to be outside that module. excluded: NOT_GO_CODE This vulnerability does not refer to a Go module. and removed excluded: EFFECTIVELY_PRIVATE This vulnerability exists in a package can be imported, but isn't meant to be outside that module. labels Mar 21, 2023
@jba jba closed this as completed Mar 29, 2023
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Labels
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