What is the CVSS score of CVE-2023-45805?

CVE-2023-45805 has a CVSS 3.1 base score of 7.8 (High). CVSS vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.5%.

Is there a public PoC exploit available for CVE-2023-45805?

Yes, a public proof-of-concept exploit is available for CVE-2023-45805. Prioritise patching immediately. EPSS: 0.5%.

Is there a patch available for CVE-2023-45805?

Yes, a patch is available for CVE-2023-45805. Update the affected software to the latest version immediately.

Python CVE-2023-45805

HIGH

Improper Input Validation (CWE-20)

2023-10-20 security-advisories@github.com

RCE Python Pdm Unearth

7.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.8 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Oct 20, 2023 - 19:15 nvd

HIGH 7.8

Blast Radius

ecosystem impact

† from your stack dependencies † transitive graph · vuln.today resolves 4-path depth

1 pypi packages depend on pdm (1 direct, 0 indirect)

Ecosystem-wide dependent count for version 2.9.3.

DescriptionNVD

pdm is a Python package and dependency manager supporting the latest PEP standards. 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. A 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. 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. This issue has been addressed in commit 6853e2642df which is included in release version 2.9.4. Users are advised to upgrade. There are no known workarounds for this vulnerability.

AnalysisAI

pdm is a Python package and dependency manager supporting the latest PEP standards. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. Public exploit code available.

Technical ContextAI

This vulnerability is classified under CWE-20. pdm is a Python package and dependency manager supporting the latest PEP standards. 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. A 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. 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. This issue has been addressed in commit 6853e2642df which is included in release version 2.9.4. Users are advised to upgrade. There are no known workarounds for this vulnerability. Affected products include: Frostming Pdm, Frostming Unearth.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.