github - ghsa-j4j9-7hg9-97g6

GHSA-J4J9-7HG9-97G6

Vulnerability from github – Published: 2022-10-11 20:41 – Updated: 2025-04-09 20:06

Summary

Poetry vulnerable to Untrusted Search Path leading to Local Code Execution on Windows

Details

Observation

To handle dependencies that come from a Git repository, Poetry executes various commands, e.g. git config. These commands are being executed using the executable’s name and not its absolute path.

This can lead to the execution of untrusted code due to the way Windows resolves executable names to paths. Unlike Linux-based operating systems, Windows searches for the executable in the current directory first and looks in the paths that are defined in the PATH environment variable afterward. If the current directory contains unknown and thus potentially malicious files, the directory could contain an executable named git.exe which would be executed by Poetry.

Poetry calls executables by name when handling dependencies from Git. Note that there might be even more places where Poetry calls executables by name.

Impact

This vulnerability can lead to Arbitrary Code Execution, which would lead to the takeover of the system. If a developer is exploited, the attacker could steal credentials or persist their access. If the exploit happens on a server, the attackers could use their access to attack other internal systems. Since this vulnerability requires a fair amount of user interaction, it is not as dangerous as a remotely exploitable one. However, it still puts developers at risk when dealing with untrusted files in a way they think is safe, because the exploit still works when the victim tries to make

sure nothing can happen, e.g. by checking that the referenced Git dependency is not malicious and points to a trusted Git repository. The victim could also not protect themself by vetting any Git or Poetry config files that might be present in the directory, because the behavior is undocumented. This kind of attack vector has been used in the past to target security researchers by sending them projects to collaborate on, so we believe that there is a non-negligible risk.

Patches

1.1.9 || 1.2.0b1

Remediation

Upgrade to version 1.1.9 || 1.2.0b1

References

Fix PR

For more information

If you have any questions or comments about this advisory: * Email us at security@python-poetry.org

Severity ?

7.3 (High)


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

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "poetry"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.1.9"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2022-36070"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-426"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2022-10-11T20:41:47Z",
    "nvd_published_at": "2022-09-07T19:15:00Z",
    "severity": "HIGH"
  },
  "details": "### Observation\n\nTo handle dependencies that come from a Git repository, Poetry executes various commands, e.g. `git config`. These commands are being executed using the executable\u2019s name and not its absolute path.\n\nThis can lead to the execution of untrusted code due to the way Windows resolves executable names to paths. Unlike Linux-based operating systems, Windows searches for the executable in the current directory first and looks in the paths that are defined in the `PATH` environment variable afterward. If the current directory contains unknown and thus potentially malicious files, the directory could contain an executable named `git.exe` which would be executed by Poetry.\n\nPoetry calls executables by name when handling dependencies from Git. Note that there might be even more places where Poetry calls executables by name.\n\n### Impact\n\nThis vulnerability can lead to Arbitrary Code Execution, which would lead to the takeover of the system. If a developer is exploited, the attacker could steal credentials or persist their access. If the exploit happens on a server, the attackers could use their access to attack other internal systems.\nSince this vulnerability requires a fair amount of user interaction, it is not as dangerous as a remotely exploitable one. However, it still puts developers at risk when dealing with untrusted files in a way they think is safe, because the exploit still works when the victim tries to make\n \nsure nothing can happen, e.g. by checking that the referenced Git dependency is not malicious and points to a trusted Git repository.\nThe victim could also not protect themself by vetting any Git or Poetry config files that might be present in the directory, because the behavior is undocumented. This kind of attack vector has been used in the past to target security researchers by sending them projects to collaborate on, so we believe that there is a non-negligible risk.\n\n### Patches\n\n1.1.9 || 1.2.0b1\n\n### Remediation\n\nUpgrade to version 1.1.9 || 1.2.0b1\n\n### References\n\n[Fix PR](https://github.com/python-poetry/poetry-core/pull/204)\n\n### For more information\n\nIf you have any questions or comments about this advisory:\n* Email us at [security@python-poetry.org](mailto:security@python-poetry.org)",
  "id": "GHSA-j4j9-7hg9-97g6",
  "modified": "2025-04-09T20:06:43Z",
  "published": "2022-10-11T20:41:47Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/python-poetry/poetry/security/advisories/GHSA-j4j9-7hg9-97g6"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-36070"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/poetry/PYSEC-2022-43179.yaml"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/python-poetry/poetry"
    },
    {
      "type": "WEB",
      "url": "https://github.com/python-poetry/poetry/releases/tag/1.1.9"
    },
    {
      "type": "WEB",
      "url": "https://github.com/python-poetry/poetry/releases/tag/1.2.0b1"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Poetry vulnerable to Untrusted Search Path leading to Local Code Execution on Windows"
}

CVE-2022-36070 (GCVE-0-2022-36070)

Vulnerability from cvelistv5 – Published: 2022-09-07 18:30 – Updated: 2025-04-23 17:14

Summary

Poetry is a dependency manager for Python. To handle dependencies that come from a Git repository, Poetry executes various commands, e.g. `git config`. These commands are being executed using the executable’s name and not its absolute path. This can lead to the execution of untrusted code due to the way Windows resolves executable names to paths. Unlike Linux-based operating systems, Windows searches for the executable in the current directory first and looks in the paths that are defined in the `PATH` environment variable afterward. This vulnerability can lead to Arbitrary Code Execution, which would lead to the takeover of the system. If a developer is exploited, the attacker could steal credentials or persist their access. If the exploit happens on a server, the attackers could use their access to attack other internal systems. Since this vulnerability requires a fair amount of user interaction, it is not as dangerous as a remotely exploitable one. However, it still puts developers at risk when dealing with untrusted files in a way they think is safe. The victim could also not protect themself by vetting any Git or Poetry config files that might be present in the directory, because the behavior is undocumented. Versions 1.1.9 and 1.2.0b1 contain patches for this issue.

Severity ?

7.3 (High)


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

CWE

CWE-426 - Untrusted Search Path

Assigner

GitHub_M

References

URL

Tags

	https://github.com/python-poetry/poetry/releases/…	x_refsource_MISC
	https://github.com/python-poetry/poetry/security/…	x_refsource_CONFIRM
	https://github.com/python-poetry/poetry/releases/…	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	python-poetry	poetry	Affected: < 1.1.9

Show details on NVD website

JSON

To clipboard

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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-J4J9-7HG9-97G6

Observation

Impact

Patches

Remediation

References

For more information

CVE-2022-36070 (GCVE-0-2022-36070)

Tags

Sightings

Nomenclature