Listen to this Post
The CVE-2023-30588 vulnerability in devalue.parse stems from inadequate input validation during typed array hydration. When parsing untrusted data, the function expects ArrayBuffer inputs for typed arrays but fails to verify this assumption before instantiation. Attackers can craft malicious payloads that mimic typed arrays with large or invalid dimensions, causing the parser to allocate excessive memory or enter computationally expensive processes. This occurs because the hydration logic directly creates typed arrays from parsed data without bounds checks, leading to resource exhaustion. Specifically, inputs like manipulated array descriptors trigger uncontrolled memory allocation, consuming CPU time and memory disproportionately. The issue is exploitable in systems that use devalue.parse on external data, such as server-side applications in Nuxt.js. By sending a crafted string, an attacker can cause denial of service without authentication, crashing or slowing down the application. The vulnerability is critical due to the potential for remote exploitation and impact on availability.
Platform: devalue
Version: before 4.3.0
Vulnerability: Denial of Service
Severity: Critical
date: 2023-05-30
Prediction: Patched 2023-05-30
What Undercode Say:
Analytics
npm list devalue
npm audit devalue
grep devalue package.json
npm install [email protected]
const devalue = require(‘devalue’);
const payload = ‘[“ArrayBuffer”,1,1000000000]’;
devalue.parse(payload);
how Exploit:
Craft malicious payloads.
Send to parse endpoints.
Trigger memory exhaustion.
Protection from this CVE
Upgrade to 4.3.0.
Validate input data.
Monitor resource usage.
Impact:
Denial of Service.
Resource exhaustion.
Availability compromised.
🎯Let’s Practice Exploiting & Learn Patching For Free:
Sources:
Reported By: github.com
Extra Source Hub:
Undercode
