Vulnerability-Lookup

CVE-2024-40647 (GCVE-0-2024-40647)

Vulnerability from cvelistv5 – Published: 2024-07-18 16:51 – Updated: 2024-08-02 04:33

Title

Unintentional exposure of environment variables to subprocesses in sentry-sdk

Summary

sentry-sdk is the official Python SDK for Sentry.io. A bug in Sentry's Python SDK < 2.8.0 allows the environment variables to be passed to subprocesses despite the `env={}` setting. In Python's `subprocess` calls, all environment variables are passed to subprocesses by default. However, if you specifically do not want them to be passed to subprocesses, you may use `env` argument in `subprocess` calls. Due to the bug in Sentry SDK, with the Stdlib integration enabled (which is enabled by default), this expectation is not fulfilled, and all environment variables are being passed to subprocesses instead. The issue has been patched in pull request #3251 and is included in sentry-sdk==2.8.0. We strongly recommend upgrading to the latest SDK version. However, if it's not possible, and if passing environment variables to child processes poses a security risk for you, you can disable all default integrations.

Severity ?

5.3 (Medium)


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

CWE

CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor

Assigner

GitHub_M

References

URL

Tags

	https://github.com/getsentry/sentry-python/securi…	x_refsource_CONFIRM
	https://github.com/getsentry/sentry-python/pull/3251	x_refsource_MISC
	https://github.com/getsentry/sentry-python/commit…	x_refsource_MISC
	https://docs.python.org/3/library/subprocess.html	x_refsource_MISC
	https://docs.sentry.io/platforms/python/integrati…	x_refsource_MISC
	https://docs.sentry.io/platforms/python/integrati…	x_refsource_MISC
	https://github.com/getsentry/sentry-python/releas…	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	getsentry	sentry-python	Affected: < 2.8.0

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2024-40647

Vulnerability from fkie_nvd - Published: 2024-07-18 17:15 - Updated: 2024-11-21 09:31

Severity ?

5.3 (Medium) - CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N

Summary

References

	URL	Tags
	security-advisories@github.com	https://docs.python.org/3/library/subprocess.html
	security-advisories@github.com	https://docs.sentry.io/platforms/python/integrations/default-integrations
	security-advisories@github.com	https://docs.sentry.io/platforms/python/integrations/default-integrations/#stdlib
	security-advisories@github.com	https://github.com/getsentry/sentry-python/commit/763e40aa4cb57ecced467f48f78f335c87e9bdff
	security-advisories@github.com	https://github.com/getsentry/sentry-python/pull/3251
	security-advisories@github.com	https://github.com/getsentry/sentry-python/releases/tag/2.8.0
	security-advisories@github.com	https://github.com/getsentry/sentry-python/security/advisories/GHSA-g92j-qhmh-64v2
	af854a3a-2127-422b-91ae-364da2661108	https://docs.python.org/3/library/subprocess.html
	af854a3a-2127-422b-91ae-364da2661108	https://docs.sentry.io/platforms/python/integrations/default-integrations
	af854a3a-2127-422b-91ae-364da2661108	https://docs.sentry.io/platforms/python/integrations/default-integrations/#stdlib
	af854a3a-2127-422b-91ae-364da2661108	https://github.com/getsentry/sentry-python/commit/763e40aa4cb57ecced467f48f78f335c87e9bdff
	af854a3a-2127-422b-91ae-364da2661108	https://github.com/getsentry/sentry-python/pull/3251
	af854a3a-2127-422b-91ae-364da2661108	https://github.com/getsentry/sentry-python/releases/tag/2.8.0
	af854a3a-2127-422b-91ae-364da2661108	https://github.com/getsentry/sentry-python/security/advisories/GHSA-g92j-qhmh-64v2

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "sentry-sdk is the official Python SDK for Sentry.io. A bug in Sentry\u0027s Python SDK \u003c 2.8.0 allows the environment variables to be passed to subprocesses despite the `env={}` setting. In Python\u0027s `subprocess` calls, all environment variables are passed to subprocesses by default. However, if you specifically do not want them to be passed to subprocesses, you may use `env` argument in `subprocess` calls. Due to the bug in Sentry SDK, with the Stdlib integration enabled (which is enabled by default), this expectation is not fulfilled, and all environment variables are being passed to subprocesses instead. The issue has been patched in pull request #3251 and is included in sentry-sdk==2.8.0. We strongly recommend upgrading to the latest SDK version. However, if it\u0027s not possible, and if passing environment variables to child processes poses a security risk for you, you can disable all default integrations.\n"
    },
    {
      "lang": "es",
      "value": "sentry-sdk es el SDK oficial de Python para Sentry.io. Un error en el SDK de Python de Sentry \u0026lt; 2.8.0 permite que las variables de entorno se pasen a subprocesos a pesar de la configuraci\u00f3n `env={}`. En las llamadas de `subproceso` de Python, todas las variables de entorno se pasan a subprocesos de forma predeterminada. Sin embargo, si espec\u00edficamente no desea que se pasen a subprocesos, puede usar el argumento `env` en las llamadas de `subproceso`. Debido al error en Sentry SDK, con la integraci\u00f3n Stdlib habilitada (que est\u00e1 habilitada de forma predeterminada), esta expectativa no se cumple y, en su lugar, todas las variables de entorno se pasan a subprocesos. El problema se solucion\u00f3 en la solicitud de extracci\u00f3n n.\u00b0 3251 y se incluye en sentry-sdk==2.8.0. Recomendamos encarecidamente actualizar a la \u00faltima versi\u00f3n del SDK. Sin embargo, si no es posible y si pasar variables de entorno a procesos secundarios representa un riesgo de seguridad para usted, puede desactivar todas las integraciones predeterminadas."
    }
  ],
  "id": "CVE-2024-40647",
  "lastModified": "2024-11-21T09:31:25.587",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "LOCAL",
          "availabilityImpact": "NONE",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM",
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    }
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  "vulnStatus": "Awaiting Analysis",
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        {
          "lang": "en",
          "value": "CWE-200"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}

GHSA-G92J-QHMH-64V2

Vulnerability from github – Published: 2024-07-18 17:18 – Updated: 2025-06-06 22:27

Summary

Sentry's Python SDK unintentionally exposes environment variables to subprocesses

Details

Impact

The bug in Sentry's Python SDK <2.8.0 results in the unintentional exposure of environment variables to subprocesses despite the env={} setting.

Details

In Python's subprocess calls, all environment variables are passed to subprocesses by default. However, if you specifically do not want them to be passed to subprocesses, you may use env argument in subprocess calls, like in this example:

>>> subprocess.check_output(["env"], env={"TEST":"1"})
b'TEST=1\n'

If you'd want to not pass any variables, you can set an empty dict:

>>> subprocess.check_output(["env"], env={})
b''

However, the bug in Sentry SDK <2.8.0 causes all environment variables to be passed to the subprocesses when env={} is set, unless the Sentry SDK's Stdlib integration is disabled. The Stdlib integration is enabled by default.

Patches

The issue has been patched in https://github.com/getsentry/sentry-python/pull/3251 and the fix released in sentry-sdk==2.8.0. The fix was also backported to sentry-sdk==1.45.1.

Workarounds

We strongly recommend upgrading to the latest SDK version. However, if it's not possible, and if passing environment variables to child processes poses a security risk for you, there are two options:

In your application, replace env={} with the minimal dict env={"EMPTY_ENV":"1"} or similar.

Disable Stdlib integration:

import sentry_sdk

# Should go before sentry_sdk.init
sentry_sdk.integrations._DEFAULT_INTEGRATIONS.remove("sentry_sdk.integrations.stdlib.StdlibIntegration")

sentry_sdk.init(...)

References

Sentry docs: Default integrations
Python docs: subprocess module
Patch https://github.com/getsentry/sentry-python/pull/3251

Severity ?

2.5 (Low)


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

1.8 (Low)


                  
                    CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:N/VI:N/VA:N/SC:L/SI:N/SA:N

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "sentry-sdk"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.0.0a1"
            },
            {
              "fixed": "2.8.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "sentry-sdk"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.45.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2024-40647"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-200"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2024-07-18T17:18:46Z",
    "nvd_published_at": "2024-07-18T17:15:05Z",
    "severity": "LOW"
  },
  "details": "### Impact\n\nThe bug in Sentry\u0027s Python SDK \u003c2.8.0 results in the unintentional exposure of environment variables to subprocesses despite the `env={}` setting.\n\n### Details\n\nIn Python\u0027s `subprocess` calls, all environment variables are passed to subprocesses by default. However, if you specifically do not want them to be passed to subprocesses, you may use `env` argument in `subprocess` calls, like in this example:\n\n```\n\u003e\u003e\u003e subprocess.check_output([\"env\"], env={\"TEST\":\"1\"})\nb\u0027TEST=1\\n\u0027\n```\n\nIf you\u0027d want to not pass any variables, you can set an empty dict:\n\n```\n\u003e\u003e\u003e subprocess.check_output([\"env\"], env={})\nb\u0027\u0027\n```\n\nHowever, the bug in Sentry SDK \u003c2.8.0 causes **all environment variables** to be passed to the subprocesses when `env={}` is set, unless the Sentry SDK\u0027s [Stdlib](https://docs.sentry.io/platforms/python/integrations/default-integrations/#stdlib) integration is disabled. The Stdlib integration is enabled by default.\n\n### Patches\nThe issue has been patched in https://github.com/getsentry/sentry-python/pull/3251 and the fix released in [sentry-sdk==2.8.0](https://github.com/getsentry/sentry-python/releases/tag/2.8.0). The fix was also backported to [sentry-sdk==1.45.1](https://github.com/getsentry/sentry-python/releases/tag/1.45.1).\n\n### Workarounds\n\nWe strongly recommend upgrading to the latest SDK version. However, if it\u0027s not possible, and if passing environment variables to child processes poses a security risk for you, there are two options:\n\n1. In your application, replace `env={}` with the minimal dict `env={\"EMPTY_ENV\":\"1\"}` or similar.\n\nOR\n\n2. Disable Stdlib integration:\n```\nimport sentry_sdk\n\n# Should go before sentry_sdk.init\nsentry_sdk.integrations._DEFAULT_INTEGRATIONS.remove(\"sentry_sdk.integrations.stdlib.StdlibIntegration\")\n\nsentry_sdk.init(...)\n```\n\n### References\n* Sentry docs: [Default integrations](https://docs.sentry.io/platforms/python/integrations/default-integrations/)\n* Python docs: [subprocess module](https://docs.python.org/3/library/subprocess.html)\n* Patch https://github.com/getsentry/sentry-python/pull/3251",
  "id": "GHSA-g92j-qhmh-64v2",
  "modified": "2025-06-06T22:27:43Z",
  "published": "2024-07-18T17:18:46Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/getsentry/sentry-python/security/advisories/GHSA-g92j-qhmh-64v2"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-40647"
    },
    {
      "type": "WEB",
      "url": "https://github.com/getsentry/sentry-python/pull/3251"
    },
    {
      "type": "WEB",
      "url": "https://github.com/getsentry/sentry-python/commit/763e40aa4cb57ecced467f48f78f335c87e9bdff"
    },
    {
      "type": "WEB",
      "url": "https://docs.python.org/3/library/subprocess.html"
    },
    {
      "type": "WEB",
      "url": "https://docs.sentry.io/platforms/python/integrations/default-integrations"
    },
    {
      "type": "WEB",
      "url": "https://docs.sentry.io/platforms/python/integrations/default-integrations/#stdlib"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/getsentry/sentry-python"
    },
    {
      "type": "WEB",
      "url": "https://github.com/getsentry/sentry-python/releases/tag/1.45.1"
    },
    {
      "type": "WEB",
      "url": "https://github.com/getsentry/sentry-python/releases/tag/2.8.0"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:N/VI:N/VA:N/SC:L/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Sentry\u0027s Python SDK unintentionally exposes environment variables to subprocesses"
}

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-2024-40647 (GCVE-0-2024-40647)

FKIE_CVE-2024-40647

GHSA-G92J-QHMH-64V2

Impact

Details

Patches

Workarounds

References

Tags

Sightings

Nomenclature