cvelistv5 - CVE-2024-28860

CVE-2024-28860 (GCVE-0-2024-28860)

Vulnerability from cvelistv5 – Published: 2024-03-27 18:34 – Updated: 2025-04-10 18:25

Summary

Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Users of IPsec transparent encryption in Cilium may be vulnerable to cryptographic attacks that render the transparent encryption ineffective. In particular, Cilium is vulnerable to chosen plaintext, key recovery, replay attacks by a man-in-the-middle attacker. These attacks are possible due to an ESP sequence number collision when multiple nodes are configured with the same key. Fixed versions of Cilium use unique keys for each IPsec tunnel established between nodes, resolving all of the above attacks. This vulnerability is fixed in 1.13.13, 1.14.9, and 1.15.3.

Severity ?

8 (High)


                        
                          CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N

CWE

CWE-326 - Inadequate Encryption Strength

Assigner

GitHub_M

References

URL

Tags

	https://github.com/cilium/cilium/security/advisor…	x_refsource_CONFIRM
	https://github.com/cilium/cilium/commit/311fbce52…	x_refsource_MISC
	https://github.com/cilium/cilium/commit/a1742b478…	x_refsource_MISC
	https://github.com/cilium/cilium/commit/a652c1233…	x_refsource_MISC
	https://docs.cilium.io/en/stable/security/network…	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	cilium	cilium	Affected: >= 1.4.0, <= 1.13.14 Affected: >= 1.14.0, < 1.14.9 Affected: >= 1.15.0, < 1.15.3

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}

GSD-2024-28860

Vulnerability from gsd - Updated: 2024-04-02 05:02

Details

Aliases

CVE-2024-28860

JSON

To clipboard

{
  "gsd": {
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      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
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GHSA-PWQM-X5X6-5586

Vulnerability from github – Published: 2024-03-28 17:27 – Updated: 2024-04-16 18:51

Summary

Cilium has insecure IPsec transport encryption

Details

Impact

Users of IPsec transparent encryption in Cilium may be vulnerable to cryptographic attacks that render the transparent encryption ineffective.

In particular, Cilium is vulnerable to the following attacks by a man-in-the-middle attacker:

Chosen plaintext attacks
Key recovery attacks
Replay attacks

These attacks are possible due to an ESP sequence number collision when multiple nodes are configured with the same key. Fixed versions of Cilium use unique keys for each IPsec tunnel established between nodes, resolving all of the above attacks.

Important: After upgrading, users must perform a key rotation using the instructions here to ensure that they are no longer vulnerable to this issue. Please note that the key rotation instructions have recently been updated, and users must use the new instructions to properly establish secure IPsec tunnels. To validate that the new instructions have been followed properly, ensure that the IPsec Kubernetes secret contains a "+" sign.

Patches

All prior versions of Cilium that support IPsec transparent encryption (Cilium 1.4 onwards) are affected by this issue.

Patched versions:

Cilium 1.15.3
Cilium 1.14.9
Cilium 1.13.14

Workarounds

There is no workaround to this issue. IPsec transparent encryption users are strongly encouraged to upgrade.

Acknowledgements

The Cilium community has worked together with members of Cure53 and Isovalent to prepare these mitigations. Special thanks to @NikAleksandrov and @pchaigno for their work on remediating the issue. Thanks to Marsh Ray, Senior Software Developer at Microsoft, for input and guidance on the fix.

For more information

If you have any questions or comments about this advisory, please reach out on Slack.

As 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.

Severity ?

8.0 (High)


                  
                    CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N

Show details on source website

JSON

To clipboard

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      },
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    "severity": "HIGH"
  },
  "details": "### Impact\n\nUsers of [IPsec transparent encryption](https://docs.cilium.io/en/stable/security/network/encryption-ipsec/) in Cilium may be vulnerable to cryptographic attacks that render the transparent encryption ineffective.\n\nIn particular, Cilium is vulnerable to the following attacks by a man-in-the-middle attacker:\n\n- Chosen plaintext attacks\n- Key recovery attacks\n- Replay attacks\n\nThese attacks are possible due to an ESP sequence number collision when multiple nodes are configured with the same key. Fixed versions of Cilium use unique keys for each IPsec tunnel established between nodes, resolving all of the above attacks.\n\n**Important:** After upgrading, users must perform a key rotation using the instructions [here](https://docs.cilium.io/en/latest/security/network/encryption-ipsec/#key-rotation) to ensure that they are no longer vulnerable to this issue. Please note that the key rotation instructions have recently been updated, and users must use the new instructions to properly establish secure IPsec tunnels. To validate that the new instructions have been followed properly, ensure that the IPsec Kubernetes secret contains a \"+\" sign.\n\n### Patches\n\nAll prior versions of Cilium that support IPsec transparent encryption (Cilium 1.4 onwards) are affected by this issue.\n\nPatched versions:\n\n- Cilium 1.15.3\n- Cilium 1.14.9\n- Cilium 1.13.14\n\n### Workarounds\n\nThere is no workaround to this issue. IPsec transparent encryption users are strongly encouraged to upgrade.\n\n### Acknowledgements\n\nThe Cilium community has worked together with members of Cure53 and Isovalent to prepare these mitigations. Special thanks to @NikAleksandrov and @pchaigno for their work on remediating the issue. Thanks to Marsh Ray, Senior Software Developer at Microsoft, for input and guidance on the fix.\n\n### For more information\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](mailto: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.",
  "id": "GHSA-pwqm-x5x6-5586",
  "modified": "2024-04-16T18:51:51Z",
  "published": "2024-03-28T17:27:40Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/cilium/cilium/security/advisories/GHSA-pwqm-x5x6-5586"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-28860"
    },
    {
      "type": "WEB",
      "url": "https://github.com/cilium/cilium/commit/311fbce5280491cddceab178d83b06fa23688c72"
    },
    {
      "type": "WEB",
      "url": "https://github.com/cilium/cilium/commit/a1742b478306fa256cd27df1039dfae0537b4149"
    },
    {
      "type": "WEB",
      "url": "https://github.com/cilium/cilium/commit/a652c123331852cca90c74202f993d4170fd37fa"
    },
    {
      "type": "WEB",
      "url": "https://docs.cilium.io/en/stable/security/network/encryption-ipsec"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/cilium/cilium"
    },
    {
      "type": "WEB",
      "url": "https://pkg.go.dev/vuln/GO-2024-2666"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Cilium has insecure IPsec transport encryption"
}

FKIE_CVE-2024-28860

Vulnerability from fkie_nvd - Published: 2024-03-27 19:15 - Updated: 2025-09-02 16:05

Severity ?

8.0 (High) - CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N
6.8 (Medium) - CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Summary

References

URL	Tags
security-advisories@github.com	https://docs.cilium.io/en/stable/security/network/encryption-ipsec	Product
security-advisories@github.com	https://github.com/cilium/cilium/commit/311fbce5280491cddceab178d83b06fa23688c72	Patch
security-advisories@github.com	https://github.com/cilium/cilium/commit/a1742b478306fa256cd27df1039dfae0537b4149	Patch
security-advisories@github.com	https://github.com/cilium/cilium/commit/a652c123331852cca90c74202f993d4170fd37fa	Patch
security-advisories@github.com	https://github.com/cilium/cilium/security/advisories/GHSA-pwqm-x5x6-5586	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://docs.cilium.io/en/stable/security/network/encryption-ipsec	Product
af854a3a-2127-422b-91ae-364da2661108	https://github.com/cilium/cilium/commit/311fbce5280491cddceab178d83b06fa23688c72	Patch
af854a3a-2127-422b-91ae-364da2661108	https://github.com/cilium/cilium/commit/a1742b478306fa256cd27df1039dfae0537b4149	Patch
af854a3a-2127-422b-91ae-364da2661108	https://github.com/cilium/cilium/commit/a652c123331852cca90c74202f993d4170fd37fa	Patch
af854a3a-2127-422b-91ae-364da2661108	https://github.com/cilium/cilium/security/advisories/GHSA-pwqm-x5x6-5586	Third Party Advisory

Impacted products

Vendor	Product	Version
cilium	cilium	*
cilium	cilium	*
cilium	cilium	*

JSON

To clipboard

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:cilium:cilium:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "ACBE0C1D-C276-43C5-AAFF-E023B642A22F",
              "versionEndExcluding": "1.13.14",
              "versionStartIncluding": "1.4.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:cilium:cilium:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "42947C65-F09D-43D9-A58B-51942E70926F",
              "versionEndExcluding": "1.14.9",
              "versionStartIncluding": "1.14.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:cilium:cilium:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "D3C645FD-1CAC-4A4A-88B3-C4AC358E2408",
              "versionEndExcluding": "1.15.3",
              "versionStartIncluding": "1.15.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Users of IPsec transparent encryption in Cilium may be vulnerable to cryptographic attacks that render the transparent encryption ineffective. In particular, Cilium is vulnerable to chosen plaintext, key recovery, replay attacks by a man-in-the-middle attacker. These attacks are possible due to an ESP sequence number collision when multiple nodes are configured with the same key. Fixed versions of Cilium use unique keys for each IPsec tunnel established between nodes, resolving all of the above attacks. This vulnerability is fixed in 1.13.13, 1.14.9, and 1.15.3."
    },
    {
      "lang": "es",
      "value": "Cilium es una soluci\u00f3n de redes, observabilidad y seguridad con un plano de datos basado en eBPF. Los usuarios de cifrado transparente IPsec en Cilium pueden ser vulnerables a ataques criptogr\u00e1ficos que hagan que el cifrado transparente sea ineficaz. En particular, Cilium es vulnerable a texto plano elegido, recuperaci\u00f3n de claves y ataques de repetici\u00f3n por parte de un atacante intermediario. Estos ataques son posibles debido a una colisi\u00f3n del n\u00famero de secuencia ESP cuando se configuran varios nodos con la misma clave. Las versiones fijas de Cilium utilizan claves \u00fanicas para cada t\u00fanel IPsec establecido entre nodos, resolviendo todos los ataques anteriores. Esta vulnerabilidad se solucion\u00f3 en 1.13.13, 1.14.9 y 1.15.3."
    }
  ],
  "id": "CVE-2024-28860",
  "lastModified": "2025-09-02T16:05:05.377",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "ADJACENT_NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 8.0,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 1.6,
        "impactScore": 5.8,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "ADJACENT_NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.8,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 1.6,
        "impactScore": 5.2,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2024-03-27T19:15:48.827",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Product"
      ],
      "url": "https://docs.cilium.io/en/stable/security/network/encryption-ipsec"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/cilium/cilium/commit/311fbce5280491cddceab178d83b06fa23688c72"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/cilium/cilium/commit/a1742b478306fa256cd27df1039dfae0537b4149"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/cilium/cilium/commit/a652c123331852cca90c74202f993d4170fd37fa"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://github.com/cilium/cilium/security/advisories/GHSA-pwqm-x5x6-5586"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Product"
      ],
      "url": "https://docs.cilium.io/en/stable/security/network/encryption-ipsec"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/cilium/cilium/commit/311fbce5280491cddceab178d83b06fa23688c72"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/cilium/cilium/commit/a1742b478306fa256cd27df1039dfae0537b4149"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/cilium/cilium/commit/a652c123331852cca90c74202f993d4170fd37fa"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://github.com/cilium/cilium/security/advisories/GHSA-pwqm-x5x6-5586"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-326"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

CVE-2024-28860 (GCVE-0-2024-28860)

GSD-2024-28860

GHSA-PWQM-X5X6-5586

Impact

Patches

Workarounds

Acknowledgements

For more information

FKIE_CVE-2024-28860

Tags

Sightings

Nomenclature