Ecosyste.ms: Advisories

Security Advisories: MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLXJjNzcteHhxNi00bWZm

Command Injection in hot-formula-parser

Versions of hot-formula-parser prior to 3.0.1 are vulnerable to Command Injection. The package fails to sanitize values passed to the parse function and concatenates it in an eval call. If a value of the formula is supplied by user-controlled input it may allow attackers to run arbitrary commands in the server.
Parsing the following formula creates a test file in the present directory:
"SUM([(function(){require('child_process').execSync('touch test')})(),2])"

Recommendation

Upgrade to version 3.0.1 or later.

Permalink: https://github.com/advisories/GHSA-rc77-xxq6-4mff
JSON: https://advisories.ecosyste.ms/api/v1/advisories/MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLXJjNzcteHhxNi00bWZm
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Critical
Classification: General
Published: over 4 years ago
Updated: about 2 years ago

CVSS Score: 9.8
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Percentage: 0.00266
EPSS Percentile: 0.67213

Identifiers: GHSA-rc77-xxq6-4mff, CVE-2020-6836
References:

• https://nvd.nist.gov/vuln/detail/CVE-2020-6836
• https://github.com/handsontable/formula-parser/pull/58
• https://github.com/handsontable/formula-parser/commit/396b089738d4bf30eb570a4fe6a188affa95cd5e
• https://blog.truesec.com/2020/01/17/reverse-shell-through-a-node-js-math-parser/
• https://www.npmjs.com/advisories/1439
• https://github.com/advisories/GHSA-rc77-xxq6-4mff

Repository: https://github.com/handsontable/formula-parser
Blast Radius: 27.7

Affected Packages