GHSA-j44v-mmf2-xvm9

Suggest an improvement
Source
https://github.com/advisories/GHSA-j44v-mmf2-xvm9
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/10/GHSA-j44v-mmf2-xvm9/GHSA-j44v-mmf2-xvm9.json
JSON Data
https://api.test.osv.dev/v1/vulns/GHSA-j44v-mmf2-xvm9
Aliases
Related
Published
2023-10-20T19:30:23Z
Modified
2023-11-07T05:30:04.264345Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
Summary
PDM Trojan Lockfile
Details

Summary

It's possible to craft a malicious pdm.lock file that could allow e.g. an insider or a malicious open source project to appear to depend on a trusted PyPI project, but actually install another project.

Details

Project foo can be targeted by creating the project foo-2 and uploading the file foo-2-2.tar.gz to pypi.org. PyPI will see this as project foo-2 version 2, while PDM will see this as project foo version 2-2. The version must only be parseable as a version (and the filename must be a prefix of the project name), but it's not verified to match the version being installed. (Version 2-2 is also not a valid normalized version per PEP 440.)

Matching the project name exactly (not just prefix) would fix the issue. The version should also be verified to avoid version downgrade attacks.

PoC

Example pdm.lock snippet to appear to depend on foo but actually install foo-2

"foo 2.2.0" = [
  url = "https://files.pythonhosted.org/.../foo-2-2.tar.gz
]

Impact

When installing dependencies with PDM, what's actually installed could differ from what's listed in pyproject.toml (including arbitrary code execution on install). It could also be used for downgrade attacks by only changing the version.

Database specific 
{
    "nvd_published_at": "2023-10-20T19:15:08Z",
    "cwe_ids": [
        "CWE-20"
    ],
    "severity": "HIGH",
    "github_reviewed": true,
    "github_reviewed_at": "2023-10-20T19:30:23Z"
}
References

Affected packages

PyPI / pdm

Package

Name
pdm
View open source insights on deps.dev
Purl
pkg:pypi/pdm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Last affected
2.9.3

Affected versions

0.*

0.0.0
0.0.1
0.0.3
0.0.4
0.0.5
0.0.6
0.1.0
0.1.1
0.1.2
0.2.0
0.2.1
0.2.2
0.2.3
0.2.4
0.2.5
0.2.6
0.3.0
0.3.1
0.3.2
0.4.0
0.4.1
0.4.2
0.5.0
0.6.0
0.6.1
0.6.2
0.6.3
0.6.4
0.6.5
0.7.0
0.7.1
0.8.0
0.8.1
0.8.2
0.8.3
0.8.4
0.8.5
0.8.6
0.8.7
0.9.0
0.9.1
0.9.2
0.10.0
0.10.1
0.10.2
0.11.0
0.12.0
0.12.1
0.12.2
0.12.3

1.*

1.0.0b0
1.0.0b2
1.0.0
1.1.0
1.2.0
1.2.0.post1
1.3.0
1.3.1
1.3.2
1.3.3
1.3.4
1.4.0
1.4.1
1.4.2
1.4.3
1.4.4
1.4.5
1.5.0b0
1.5.0b1
1.5.0
1.5.1
1.5.2
1.5.3
1.6.0
1.6.1
1.6.2
1.6.3
1.6.4
1.7.0
1.7.1
1.7.2
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.8.5
1.9.0
1.10.0
1.10.1
1.10.2
1.10.3
1.11.0
1.11.1
1.11.2
1.11.3
1.12.0
1.12.1
1.12.2
1.12.3
1.12.4
1.12.5
1.12.6
1.12.7
1.12.8
1.13.0
1.13.0.post0
1.13.1
1.13.2
1.13.3
1.13.4
1.13.5
1.13.6
1.14.0
1.14.1
1.15.0
1.15.1
1.15.2
1.15.3
1.15.4
1.15.5

2.*

2.0.0a1
2.0.0b1
2.0.0b2
2.0.0
2.0.1
2.0.2
2.0.3
2.1.0
2.1.1
2.1.2
2.1.3
2.1.4
2.1.5
2.2.0
2.2.1
2.3.0
2.3.1
2.3.2
2.3.3
2.3.4
2.4.0
2.4.1
2.4.2
2.4.3
2.4.4
2.4.5
2.4.6
2.4.7
2.4.8
2.4.9
2.5.0b0
2.5.0
2.5.1
2.5.2
2.5.3
2.5.4
2.5.5
2.5.6
2.6.0
2.6.1
2.7.0
2.7.1
2.7.2
2.7.3
2.7.4
2.8.0a0
2.8.0a1
2.8.0a2
2.8.0
2.8.1
2.8.2
2.9.0
2.9.1
2.9.2
2.9.3