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Security Advisories: MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLWM4NGgtdzZjci01djhx
Markdown-supplied Shell Command Execution
Impact
lookatme versions prior to 2.3.0 automatically loaded the built-in "terminal" and "file_loader" extensions. Users that use lookatme to render untrusted markdown may have malicious shell commands automatically run on their system.
Patches
Users should upgrade to lookatme versions 2.3.0 or above.
Workarounds
The lookatme/contrib/terminal.py
and lookatme/contrib/file_loader.py
files may be manually deleted. Additionally, it is always recommended to be aware of what is being rendered with lookatme.
References
- https://github.com/d0c-s4vage/lookatme/pull/110
- https://github.com/d0c-s4vage/lookatme/releases/tag/v2.3.0
For more information
If you have any questions or comments about this advisory:
- Open an issue in d0c-s4vage/lookatme
JSON: https://advisories.ecosyste.ms/api/v1/advisories/MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLWM4NGgtdzZjci01djhx
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Critical
Classification: General
Published: over 3 years ago
Updated: 8 months ago
CVSS Score: 9.3
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
Identifiers: GHSA-c84h-w6cr-5v8q, CVE-2020-15271
References:
- https://github.com/d0c-s4vage/lookatme/security/advisories/GHSA-c84h-w6cr-5v8q
- https://github.com/d0c-s4vage/lookatme/pull/110
- https://github.com/d0c-s4vage/lookatme/commit/72fe36b784b234548d49dae60b840c37f0eb8d84
- https://github.com/d0c-s4vage/lookatme/releases/tag/v2.3.0
- https://pypi.org/project/lookatme/#history
- https://nvd.nist.gov/vuln/detail/CVE-2020-15271
- https://github.com/advisories/GHSA-c84h-w6cr-5v8q
Blast Radius: 8.9
Affected Packages
pypi:lookatme
Dependent packages: 0Dependent repositories: 9
Downloads: 485 last month
Affected Version Ranges: < 2.3.0
Fixed in: 2.3.0
All affected versions: 0.0.2, 0.1.0, 0.1.1, 0.2.0, 0.3.0, 0.4.0, 0.5.0, 1.0.0, 1.0.1, 1.1.0, 1.1.1, 1.2.0, 1.2.1, 1.3.0, 2.0.0, 2.1.0, 2.2.0
All unaffected versions: 2.3.0, 2.3.1, 2.3.2, 2.4.0, 2.4.1, 2.5.0, 2.5.1, 2.5.2, 2.5.4, 2.5.5