CVE-2023-37480: Ethyca fides Fides Webserver Vulnerable To Zip Vulnerability

LOW
Advisory Identifier: GHSA-g95c-2jgm-hqc6
Share
CVSS 2.7
CWE-400
Published
Advisory Summary

CVE-2023-37480 is a LOW (CVSS 2.7) fides webserver vulnerable to zip vulnerability (CWE-400: Uncontrolled Resource Consumption) affecting Ethyca fides libraries in the PyPI ecosystem. The issue involves fides webserver vulnerable to zip bomb file uploads. Remediation is available by upgrading affected packages to version 2.16.0.

CVE-2023-37480 at a Glance

CVE Identifier CVE-2023-37480
GHSA Identifier GHSA-g95c-2jgm-hqc6
Severity LOW
CVSS v3.1 Base Score 2.7
CWE Classification CWE-400: Uncontrolled Resource Consumption
Affected Product Ethyca fides
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 2.7

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required High (PR:H)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality None (C:N)
Integrity None (I:N)
Availability Low (A:L)

How to Fix CVE-2023-37480

To remediate this vulnerability, upgrade all affected Ethyca fides dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

ethyca-fides fixed: 2.16.0 
pip install ethyca-fides>=2.16.0
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

pip show ethyca-fides

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2023-37480, inspect your installed packages using pip:

pip show ethyca-fides

Analyze the terminal output to locate any version of Ethyca fides in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.16.0), your application is affected.

Note: The pip show ethyca-fides command checks currently installed packages in your active Python environment.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-400: Uncontrolled Resource Consumption, where the product does not properly control the allocation and maintenance of a limited resource. In Ethyca fides, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

### Impact The Fides webserver is vulnerable to a type of Denial of Service (DoS) attack. Attackers can exploit a weakness in the connector template upload feature to upload a malicious zip bomb file, resulting in resource exhaustion and service unavailability for all users of the Fides webserver. This vulnerability affects Fides versions `2.11.0` through `2.15.1`. Exploitation is limited to users with elevated privileges with the `CONNECTOR_TEMPLATE_REGISTER` scope, which includes root users and users with the owner role. ### Patches The vulnerability has been patched in Fides version `2.16.0`. Users are advised to upgrade to this version or later to secure their systems against this threat. ### Workarounds There is no known workaround to remediate this vulnerability without upgrading. If an attack occurs, the impact can be mitigated by manually or automatically restarting the affected container. ### References More information about this type of vulnerability can be found at the following links: - https://www.bamsoftware.com/hacks/zipbomb/ - https://python-security.readthedocs.io/security.html#archives-and-zip-bomb-cve-2019-9674

CVE-2023-37480 Affected Ethyca fides Versions

1 component(s)
Fixed Versions:
2.16.0
Product / Package Ecosystem Affected Versions Fixed Version
ethyca-fides
pypi/ethyca-fides
PyPI
≥ 2.11.0
< 2.16.0
2.16.0

References

GitHub Advisory / Wiki ADVISORY
https://github.com/ethyca/fides/security/advisories/GHSA-g95c-2jgm-hqc6
NVD — CVE-2023-37480 NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-37480
Security Fix Commit FIX COMMIT
https://github.com/ethyca/fides/commit/5aea738463960d81821c11ae7ade1d627a46bf32
Ethyca fides Source Repository REPOSITORY
https://github.com/ethyca/fides
Ethyca fides Release RELEASE
https://github.com/ethyca/fides/releases/tag/2.16.0

Frequently Asked Questions

What is CVE-2023-37480?
CVE-2023-37480 is a security vulnerability in Ethyca fides involving Fides Webserver Vulnerable to Zip Bomb File Uploads under CWE-400: Uncontrolled Resource Consumption.
Which Ethyca fides versions are affected?
Affected versions include releases prior to 2.16.0 across affected packages: ethyca-fides.
What version fixes CVE-2023-37480?
Upgrading to 2.16.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is ethyca-fides affected?
Yes, ethyca-fides is affected in releases prior to 2.16.0. Upgrade your dependency to 2.16.0 or later.
What is the CVSS score of CVE-2023-37480?
CVE-2023-37480 has a CVSS v3.1 base score of 2.7 (LOW) with vector string CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L.
What CWE is associated with CVE-2023-37480?
CVE-2023-37480 is classified under CWE-400: Uncontrolled Resource Consumption (The product does not properly control the allocation and maintenance of a limited resource.).
How can I check PyPI dependencies for CVE-2023-37480?
Run the dependency tree command: 'pip show ethyca-fides'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-g95c-2jgm-hqc6",
  "modified" : "2023-07-18T19:22:18Z",
  "published" : "2023-07-18T19:22:18Z",
  "aliases" : [ "CVE-2023-37480" ],
  "summary" : "Fides Webserver Vulnerable to Zip Bomb File Uploads",
  "details" : "### Impact\nThe Fides webserver is vulnerable to a type of Denial of Service (DoS) attack. Attackers can exploit a weakness in the connector template upload feature to upload a malicious zip bomb file, resulting in resource exhaustion and service unavailability for all users of the Fides webserver.\n\nThis vulnerability affects Fides versions `2.11.0` through `2.15.1`. Exploitation is limited to users with elevated privileges with the `CONNECTOR_TEMPLATE_REGISTER` scope, which includes root users and users with the owner role.\n\n### Patches\nThe vulnerability has been patched in Fides version `2.16.0`. Users are advised to upgrade to this version or later to secure their systems against this threat.\n\n### Workarounds\nThere is no known workaround to remediate this vulnerability without upgrading. If an attack occurs, the impact can be mitigated by manually or automatically restarting the affected container.\n\n### References\nMore information about this type of vulnerability can be found at the following links:\n\n- https://www.bamsoftware.com/hacks/zipbomb/\n- https://python-security.readthedocs.io/security.html#archives-and-zip-bomb-cve-2019-9674\n",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "ethyca-fides"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "2.11.0"
      }, {
        "fixed" : "2.16.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/ethyca/fides/security/advisories/GHSA-g95c-2jgm-hqc6"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2023-37480"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/ethyca/fides/commit/5aea738463960d81821c11ae7ade1d627a46bf32"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/ethyca/fides"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/ethyca/fides/releases/tag/2.16.0"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-400" ],
    "severity" : "LOW",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-07-18T19:22:18Z",
    "nvd_published_at" : "2023-07-18T19:15:09Z"
  }
}