Vulnerability Details : 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. 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.
Products affected by CVE-2020-6836
- cpe:2.3:a:hot-formula-parser_project:hot-formula-parser:*:*:*:*:*:node.js:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-6836
0.58%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 76 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-6836
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.5
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:P |
10.0
|
6.4
|
NIST | |
|
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2020-6836
-
The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.Assigned by: nvd@nist.gov (Primary)
References for CVE-2020-6836
-
https://www.npmjs.com/advisories/1439
npmPatch;Third Party Advisory
-
https://github.com/handsontable/formula-parser/commit/396b089738d4bf30eb570a4fe6a188affa95cd5e
Remove usage of the 'eval' function (#58) · handsontable/formula-parser@396b089 · GitHubPatch
-
https://blog.truesec.com/2020/01/17/reverse-shell-through-a-node-js-math-parser/
Reverse shell through a node.js math parser - TRUESEC Blog
Jump to