GSD-2023-30851

Vulnerability from gsd - Updated: 2023-12-13 01:20
Details
Cilium is a networking, observability, and security solution with an eBPF-based dataplane. This issue only impacts users who have a HTTP policy that applies to multiple `toEndpoints` AND have an allow-all rule in place that affects only one of those endpoints. In such cases, a wildcard rule will be appended to the set of HTTP rules, which could cause bypass of HTTP policies. This issue has been patched in Cilium 1.11.16, 1.12.9, and 1.13.2.
Aliases
Aliases
CVE-2023-30851
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{
  "GSD": {
    "alias": "CVE-2023-30851",
    "id": "GSD-2023-30851"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2023-30851"
      ],
      "details": "Cilium is a networking, observability, and security solution with an eBPF-based dataplane. This issue only impacts users who have a HTTP policy that applies to multiple `toEndpoints` AND have an allow-all rule in place that affects only one of those endpoints. In such cases, a wildcard rule will be appended to the set of HTTP rules, which could cause bypass of HTTP policies. This issue has been patched in Cilium 1.11.16, 1.12.9, and 1.13.2.",
      "id": "GSD-2023-30851",
      "modified": "2023-12-13T01:20:52.186496Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "security-advisories@github.com",
        "ID": "CVE-2023-30851",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "cilium",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "=",
                          "version_value": "\u003c 1.11.16"
                        },
                        {
                          "version_affected": "=",
                          "version_value": "\u003e= 1.12.0, \u003c 1.12.9"
                        },
                        {
                          "version_affected": "=",
                          "version_value": "\u003e= 1.13.0, \u003c 1.13.2"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "cilium"
            }
          ]
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "Cilium is a networking, observability, and security solution with an eBPF-based dataplane. This issue only impacts users who have a HTTP policy that applies to multiple `toEndpoints` AND have an allow-all rule in place that affects only one of those endpoints. In such cases, a wildcard rule will be appended to the set of HTTP rules, which could cause bypass of HTTP policies. This issue has been patched in Cilium 1.11.16, 1.12.9, and 1.13.2."
          }
        ]
      },
      "impact": {
        "cvss": [
          {
            "attackComplexity": "HIGH",
            "attackVector": "ADJACENT_NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 2.6,
            "baseSeverity": "LOW",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "HIGH",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:A/AC:H/PR:H/UI:N/S:C/C:L/I:N/A:N",
            "version": "3.1"
          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "cweId": "CWE-693",
                "lang": "eng",
                "value": "CWE-693: Protection Mechanism Failure"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://github.com/cilium/cilium/security/advisories/GHSA-2h44-x2wx-49f4",
            "refsource": "MISC",
            "url": "https://github.com/cilium/cilium/security/advisories/GHSA-2h44-x2wx-49f4"
          },
          {
            "name": "https://github.com/cilium/cilium/releases/tag/v1.11.16",
            "refsource": "MISC",
            "url": "https://github.com/cilium/cilium/releases/tag/v1.11.16"
          },
          {
            "name": "https://github.com/cilium/cilium/releases/tag/v1.12.9",
            "refsource": "MISC",
            "url": "https://github.com/cilium/cilium/releases/tag/v1.12.9"
          },
          {
            "name": "https://github.com/cilium/cilium/releases/tag/v1.13.2",
            "refsource": "MISC",
            "url": "https://github.com/cilium/cilium/releases/tag/v1.13.2"
          }
        ]
      },
      "source": {
        "advisory": "GHSA-2h44-x2wx-49f4",
        "discovery": "UNKNOWN"
      }
    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "\u003c1.11.16||\u003e=1.12.0 \u003c1.12.9||\u003e=1.13.0 \u003c1.13.2",
          "affected_versions": "All versions before 1.11.16, all versions starting from 1.12.0 before 1.12.9, all versions starting from 1.13.0 before 1.13.2",
          "cwe_ids": [
            "CWE-1035",
            "CWE-937"
          ],
          "date": "2023-05-22",
          "description": "### Impact\n\nThis issue only impacts users who:\n\n- Have a HTTP policy that applies to multiple `toEndpoints` AND\n- Have an allow-all rule in place that affects only one of those endpoints\n\nIn such cases, a wildcard rule will be appended to the set of HTTP rules, which could cause bypass of HTTP policies.",
          "fixed_versions": [
            "1.11.16",
            "1.12.9",
            "1.13.2"
          ],
          "identifier": "CVE-2023-30851",
          "identifiers": [
            "GHSA-2h44-x2wx-49f4",
            "CVE-2023-30851"
          ],
          "not_impacted": "All versions starting from 1.11.16 before 1.12.0, all versions starting from 1.12.9 before 1.13.0, all versions starting from 1.13.2",
          "package_slug": "go/github.com/cilium/cilium",
          "pubdate": "2023-05-22",
          "solution": "Upgrade to versions 1.11.16, 1.12.9, 1.13.2 or above.",
          "title": "Potential HTTP policy bypass when using header rules in Cilium",
          "urls": [
            "https://github.com/cilium/cilium/security/advisories/GHSA-2h44-x2wx-49f4",
            "https://github.com/cilium/cilium/releases/tag/v1.11.16",
            "https://github.com/cilium/cilium/releases/tag/v1.12.9",
            "https://github.com/cilium/cilium/releases/tag/v1.13.2",
            "https://github.com/advisories/GHSA-2h44-x2wx-49f4"
          ],
          "uuid": "4952d141-aafd-4b02-b663-cdc996f5f83c"
        }
      ]
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:cilium:cilium:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "1.13.2",
                "versionStartIncluding": "1.13.0",
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:a:cilium:cilium:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "1.12.9",
                "versionStartIncluding": "1.12.0",
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:a:cilium:cilium:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "1.11.16",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "security-advisories@github.com",
          "ID": "CVE-2023-30851"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "Cilium is a networking, observability, and security solution with an eBPF-based dataplane. This issue only impacts users who have a HTTP policy that applies to multiple `toEndpoints` AND have an allow-all rule in place that affects only one of those endpoints. In such cases, a wildcard rule will be appended to the set of HTTP rules, which could cause bypass of HTTP policies. This issue has been patched in Cilium 1.11.16, 1.12.9, and 1.13.2."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "NVD-CWE-noinfo"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/cilium/cilium/releases/tag/v1.13.2",
              "refsource": "MISC",
              "tags": [
                "Release Notes"
              ],
              "url": "https://github.com/cilium/cilium/releases/tag/v1.13.2"
            },
            {
              "name": "https://github.com/cilium/cilium/releases/tag/v1.11.16",
              "refsource": "MISC",
              "tags": [
                "Release Notes"
              ],
              "url": "https://github.com/cilium/cilium/releases/tag/v1.11.16"
            },
            {
              "name": "https://github.com/cilium/cilium/releases/tag/v1.12.9",
              "refsource": "MISC",
              "tags": [
                "Release Notes"
              ],
              "url": "https://github.com/cilium/cilium/releases/tag/v1.12.9"
            },
            {
              "name": "https://github.com/cilium/cilium/security/advisories/GHSA-2h44-x2wx-49f4",
              "refsource": "MISC",
              "tags": [
                "Vendor Advisory"
              ],
              "url": "https://github.com/cilium/cilium/security/advisories/GHSA-2h44-x2wx-49f4"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 1.6,
          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2023-06-01T20:35Z",
      "publishedDate": "2023-05-25T18:15Z"
    }
  }
}


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  • 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.
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