github - ghsa-jqh6-9574-5x22

GHSA-JQH6-9574-5X22

Vulnerability from github – Published: 2023-01-23 22:05 – Updated: 2025-04-01 23:06

Summary

MITM based Zip Slip in `ca.uhn.hapi.fhir:org.hl7.fhir.core`

Details

Impact

MITM can enable Zip-Slip.

Vulnerability

Vulnerability 1: `Scanner.java`

There is no validation that the zip file being unpacked has entries that are not maliciously writing outside of the intended destination directory. https://github.com/hapifhir/org.hl7.fhir.core/blob/8c43e21094af971303131efd081503e5a112db4b/org.hl7.fhir.validation/src/main/java/org/hl7/fhir/validation/Scanner.java#L335-L357

This zip archive is downloaded over HTTP instead of HTTPS, leaving it vulnerable to compromise in-flight. https://github.com/hapifhir/org.hl7.fhir.core/blob/8c43e21094af971303131efd081503e5a112db4b/org.hl7.fhir.validation/src/main/java/org/hl7/fhir/validation/Scanner.java#L136

Vulnerability 2: `TerminologyCacheManager.java`

Note: While these links point to only one implementation, both implementations of TerminologyCacheManager.java are vulnerable to this as their code seems to be duplicated. - https://github.com/hapifhir/org.hl7.fhir.core/blob/f58b7acfb5e393cac52cc5bbb170bdb669c2880e/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/terminologies/TerminologyCacheManager.java - https://github.com/hapifhir/org.hl7.fhir.core/blob/f58b7acfb5e393cac52cc5bbb170bdb669c2880e/org.hl7.fhir.r4b/src/main/java/org/hl7/fhir/r4b/terminologies/TerminologyCacheManager.java

While there is validation in this bit of logic that attempts to validate that the zip file doesn't contain malicious entries that escape the destination directory, the guard is insufficient.

https://github.com/hapifhir/org.hl7.fhir.core/blob/f58b7acfb5e393cac52cc5bbb170bdb669c2880e/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/terminologies/TerminologyCacheManager.java#L97-L113

This is because the Utilities.path(String... path) method does not normalize the path, although it seems to be attempting to do so. https://github.com/hapifhir/org.hl7.fhir.core/blob/f58b7acfb5e393cac52cc5bbb170bdb669c2880e/org.hl7.fhir.utilities/src/main/java/org/hl7/fhir/utilities/Utilities.java#L617-L675

The normalization only occurs if the path element starts with a path traversal payload. As an example, calling Utilities.path("/base", "/child/../test") will return the string "/base/child/../test".

This guard logic can, thus, be easily bypassed: https://github.com/hapifhir/org.hl7.fhir.core/blob/f58b7acfb5e393cac52cc5bbb170bdb669c2880e/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/terminologies/TerminologyCacheManager.java#L100-L104

Assuming an attacker can control the return value of ze.getName(), they can supply a value like /anything/../../../../zipsip-protection-bypass.txt.

Similarly, an attacker can control the contents of the Zip file via a MITM attack as this logic is used with resources not downloaded over HTTPS.

https://github.com/hapifhir/org.hl7.fhir.core/blob/f58b7acfb5e393cac52cc5bbb170bdb669c2880e/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/terminologies/TerminologyCacheManager.java#L66-L73

Patches

Unknown

Workarounds

Unknown

References

https://snyk.io/research/zip-slip-vulnerability

Severity ?

9.1 (Critical)


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

Show details on source website

JSON

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Maven",
        "name": "ca.uhn.hapi.fhir:org.hl7.fhir.core"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.6.92"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "ca.uhn.hapi.fhir:org.hl7.fhir.convertors"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.6.92"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "ca.uhn.hapi.fhir:org.hl7.fhir.r4b"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.6.92"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "ca.uhn.hapi.fhir:org.hl7.fhir.r5"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.6.92"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "ca.uhn.hapi.fhir:org.hl7.fhir.utilities"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.6.92"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "ca.uhn.hapi.fhir:org.hl7.fhir.validation"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.6.92"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2023-24057"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-22"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-01-23T22:05:28Z",
    "nvd_published_at": "2023-01-26T21:18:00Z",
    "severity": "CRITICAL"
  },
  "details": "### Impact\n\nMITM can enable Zip-Slip.\n\n### Vulnerability\n\n#### Vulnerability 1: `Scanner.java`\n\nThere is no validation that the zip file being unpacked has entries that are not maliciously writing outside of the intended destination directory.\nhttps://github.com/hapifhir/org.hl7.fhir.core/blob/8c43e21094af971303131efd081503e5a112db4b/org.hl7.fhir.validation/src/main/java/org/hl7/fhir/validation/Scanner.java#L335-L357\n\nThis zip archive is downloaded over HTTP instead of HTTPS, leaving it vulnerable to compromise in-flight.\nhttps://github.com/hapifhir/org.hl7.fhir.core/blob/8c43e21094af971303131efd081503e5a112db4b/org.hl7.fhir.validation/src/main/java/org/hl7/fhir/validation/Scanner.java#L136\n\n##### Vulnerability 2: `TerminologyCacheManager.java`\n\n**Note:** While these links point to only one implementation, both implementations of `TerminologyCacheManager.java` are vulnerable to this as their code seems to be duplicated.\n - https://github.com/hapifhir/org.hl7.fhir.core/blob/f58b7acfb5e393cac52cc5bbb170bdb669c2880e/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/terminologies/TerminologyCacheManager.java\n - https://github.com/hapifhir/org.hl7.fhir.core/blob/f58b7acfb5e393cac52cc5bbb170bdb669c2880e/org.hl7.fhir.r4b/src/main/java/org/hl7/fhir/r4b/terminologies/TerminologyCacheManager.java\n\nWhile there is validation in this bit of logic that attempts to validate that the zip file doesn\u0027t contain malicious entries that escape the destination directory, the guard is insufficient.\n\nhttps://github.com/hapifhir/org.hl7.fhir.core/blob/f58b7acfb5e393cac52cc5bbb170bdb669c2880e/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/terminologies/TerminologyCacheManager.java#L97-L113\n\nThis is because the `Utilities.path(String... path)` method does not normalize the path, although it seems to be attempting to do so.\nhttps://github.com/hapifhir/org.hl7.fhir.core/blob/f58b7acfb5e393cac52cc5bbb170bdb669c2880e/org.hl7.fhir.utilities/src/main/java/org/hl7/fhir/utilities/Utilities.java#L617-L675\n\nThe normalization only occurs if the path element starts with a path traversal payload. As an example, calling `Utilities.path(\"/base\", \"/child/../test\")` will return the string `\"/base/child/../test\"`.\n\nThis guard logic can, thus, be easily bypassed:\nhttps://github.com/hapifhir/org.hl7.fhir.core/blob/f58b7acfb5e393cac52cc5bbb170bdb669c2880e/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/terminologies/TerminologyCacheManager.java#L100-L104\n\nAssuming an attacker can control the return value of `ze.getName()`, they can supply a value like `/anything/../../../../zipsip-protection-bypass.txt`.\n\nSimilarly, an attacker can control the contents of the Zip file via a MITM attack as this logic is used with resources not downloaded over HTTPS.\n\nhttps://github.com/hapifhir/org.hl7.fhir.core/blob/f58b7acfb5e393cac52cc5bbb170bdb669c2880e/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/terminologies/TerminologyCacheManager.java#L66-L73\n\n\n### Patches\nUnknown\n\n### Workarounds\nUnknown\n\n### References\n\n - https://snyk.io/research/zip-slip-vulnerability",
  "id": "GHSA-jqh6-9574-5x22",
  "modified": "2025-04-01T23:06:23Z",
  "published": "2023-01-23T22:05:28Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/HL7/fhir-ig-publisher/security/advisories/GHSA-xr8x-pxm6-prjg"
    },
    {
      "type": "WEB",
      "url": "https://github.com/hapifhir/org.hl7.fhir.core/security/advisories/GHSA-jqh6-9574-5x22"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-24057"
    },
    {
      "type": "WEB",
      "url": "https://github.com/hapifhir/org.hl7.fhir.core/commit/b50aec59124416b7315a49220cfc3999223414cc"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/hapifhir/org.hl7.fhir.core"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": " MITM based Zip Slip in `ca.uhn.hapi.fhir:org.hl7.fhir.core`"
}

CVE-2023-24057 (GCVE-0-2023-24057)

Vulnerability from cvelistv5 – Published: 2023-01-24 00:00 – Updated: 2025-04-01 19:26

Summary

HL7 (Health Level 7) FHIR Core Libraries before 5.6.92 allow attackers to extract files into arbitrary directories via directory traversal from a crafted ZIP or TGZ archive (for a prepackaged terminology cache, NPM package, or comparison archive).

Severity ?

8.1 (High)


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

CWE

Assigner

mitre

References

URL

Tags

https://github.com/HL7/fhir-ig-publisher/security…

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T10:49:09.017Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/HL7/fhir-ig-publisher/security/advisories/GHSA-xr8x-pxm6-prjg"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "HIGH",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 8.1,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2023-24057",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-04-01T19:25:38.708897Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-22",
                "description": "CWE-22 Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-04-01T19:26:42.787Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "HL7 (Health Level 7) FHIR Core Libraries before 5.6.92 allow attackers to extract files into arbitrary directories via directory traversal from a crafted ZIP or TGZ archive (for a prepackaged terminology cache, NPM package, or comparison archive)."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-01-24T00:00:00.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "url": "https://github.com/HL7/fhir-ig-publisher/security/advisories/GHSA-xr8x-pxm6-prjg"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2023-24057",
    "datePublished": "2023-01-24T00:00:00.000Z",
    "dateReserved": "2023-01-22T00:00:00.000Z",
    "dateUpdated": "2025-04-01T19:26:42.787Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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

GHSA-JQH6-9574-5X22

Impact

Vulnerability

Vulnerability 1: Scanner.java

Vulnerability 2: TerminologyCacheManager.java

Patches

Workarounds

References

CVE-2023-24057 (GCVE-0-2023-24057)

Tags

Sightings

Nomenclature

Vulnerability 1: `Scanner.java`

Vulnerability 2: `TerminologyCacheManager.java`