VulnerabilityModified
CVE-2020-6836
grammar-parser.jison in the hot-formula-parser package before 3.0.1 for Node.js is vulnerable to arbitrary code injection.
CRITICAL 9.8EPSS 2.15%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.15%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
grammar-parser.jison in the hot-formula-parser package before 3.0.1 for Node.js is vulnerable to arbitrary code injection. The package fails to sanitize values passed to the parse function and concatenates them in an eval call. If a value of the formula is taken from user-controlled input, it may allow attackers to run arbitrary commands on the server.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 2.15% probability · 81th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-94
- Affected
- hot-formula-parser project/hot-formula-parser
- Source
- cve@mitre.org
References
- https://blog.truesec.com/2020/01/17/reverse-shell-through-a-node-js-math-parser/
- https://github.com/handsontable/formula-parser/commit/396b089738d4bf30eb570a4fe6a188affa95cd5ePatch
- https://www.npmjs.com/advisories/1439Patch, Third Party Advisory
- https://blog.truesec.com/2020/01/17/reverse-shell-through-a-node-js-math-parser/
- https://github.com/handsontable/formula-parser/commit/396b089738d4bf30eb570a4fe6a188affa95cd5ePatch
- https://www.npmjs.com/advisories/1439Patch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.