This is a summary of the AI-generated 10-question deep analysis. The full version (longer answers, follow-up Q&A, related CVEs) requires login.
Read the full analysis โ
Q1What is this vulnerability? (Essence + Consequences)
๐จ **Essence**: Prototype Pollution in Parse Server. ๐ฅ **Consequences**: Attackers can inject malicious properties into the Object prototype, leading to **Complete System Compromise** (High CVSS).โฆ
๐ **Attacker Capabilities**:
1. **Modify System Behavior**: Inject properties like `__proto__` or `constructor`.
2. **Data Theft/Corruption**: Access or alter sensitive data across all instances.
3.โฆ
๐ **Threshold**: **LOW**. ๐ซ **Auth**: No authentication required (PR:N). ๐ **Network**: Remote (AV:N). โ๏ธ **Config**: Default settings often lack strict keys, making it easy to exploit without complex configuration.
Q6Is there a public Exp? (PoC/Wild Exploitation)
๐ป **Exploit**: **YES**. Public PoC available at `https://github.com/tuo4n8/CVE-2022-24760`. ๐ **Details**: Analysis shows flow and diff commit `886bfd7`. Wild exploitation is possible due to low barrier to entry.
Q7How to self-check? (Features/Scanning)
๐ **Self-Check**:
1. Check Parse Server version (< 4.10.7).
2. Scan for `DatabaseController.js` usage.
3. Test for Prototype Pollution by sending payloads with `__proto__` keys in JSON bodies.
4.โฆ
โ **Fixed**: **YES**. ๐ **Patch Date**: 2022-03-11. ๐ ๏ธ **Fix**: Commit `886bfd7cac69496e3f73d4bb536f0eec3cba0e4d`. Upgrade to **Parse Server 4.10.7** or later immediately.
Q9What if no patch? (Workaround)
๐ง **Workaround**:
1. **Enforce Keys**: Set strict master/user keys to prevent unauthenticated DB access.
2. **Input Validation**: Sanitize all JSON inputs before processing.
3.โฆ
โก **Priority**: **CRITICAL**. ๐ **CVSS**: 9.8 (High). ๐จ **Urgency**: Patch immediately. This is a remote, unauthenticated vulnerability with high impact. Do not delay.