Bug bounty and vulnerability research reports by Desai Vinayak — includes CVE-2023-50290 (Apache Solr) and Zscaler subdomain takeover findings.# 🧩 Bug Bounty Reports — Desai Vinayak
**🔒 Bug bounty and vulnerability research reports by _Desai Vinayak_.**
This repository collects **passive, non-destructive** vulnerability write-ups and supporting evidence for **coordinated disclosure** and **remediation tracking**.
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## 📁 Contents
📂 **reports/** — PDF, DOCX, and evidence files for each report:
- 🧠 `Bug_Bounty_Report_Desai_Vinayak_CVE-2023-50290.pdf` — Apache Solr Metrics API information disclosure (**CVE-2023-50290**).
- 🌐 `zscaler_bugbounty_report.pdf` — Potential subdomain takeover findings for selected `zscaler.com` subdomains.
- 📜 `CVE-2023-50290_summary.md` — Markdown summary of the Solr report.
- 📜 `zscaler_subdomain_takeover_summary.md` — Markdown summary of the Zscaler findings.
🧾 **Other files**
- 🤝 `CONTRIBUTING.md` — Guidance for triage teams and vendors.
- 🕵️ `DISCLOSURE_POLICY.md` — Coordinated disclosure expectations.
- 🧩 `ISSUE_TEMPLATE.md` — Template to open remediation/tracking issues.
- ⚙️ `.github/workflows/` — CI placeholders.
- 🚀 `PUBLISH.md` — Quick publish instructions.
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## 🧠 Summary
This repository currently contains two primary reports produced via **passive reconnaissance**:
### 🔹 Apache Solr — CVE-2023-50290
The Solr Metrics API can expose environment and configuration details that may leak sensitive information.
📄 See the Solr PDF and summary in `/reports`.
### 🔹 Zscaler — Potential Subdomain Takeover
Several `zscaler.com` subdomains resolve to third-party hosts returning provider unconfigured/error pages (e.g., AWS ELB, Acquia, UptimeRobot).
These may be vulnerable to takeover if unprovisioned.
📄 See the Zscaler PDF and summary in `/reports`.
🧷 **All scans and evidence collection were passive and non-destructive:**
DNS lookups, certificate-transparency checks, HTTP headers, and non-invasive content captures.
No credentials, no POST requests, no exploitation performed.
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## ⚙️ How to Use
👩💻 **Vendors / Triage Teams**
- Open an issue using `ISSUE_TEMPLATE.md`.
- Reference the report filename in `/reports/`.
- Include remediation steps, progress updates, and final status.
🧑🔬 **External Researchers**
- Please follow the coordinated disclosure policy (`DISCLOSURE_POLICY.md`)
before publishing or sharing findings.
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## 🧰 Remediation Recommendations (High-Level)
✅ Remove or fix unused CNAME records that point to third-party services.
✅ Properly configure custom domains on provider dashboards for services in use.
✅ Restrict access to sensitive admin endpoints (e.g., Solr `/admin/metrics`) and require authentication.
✅ Rotate any secrets that may have been exposed via configuration or environment variables.
✅ Implement DNS monitoring and alerting for unexpected external CNAMEs or CT-log changes.
📎 _Detailed remediation steps are included in each report._
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## 🤝 Coordinated Disclosure & Contact
**Reporter:** Desai Vinayak
📧 **Email:** [desaivinayak449@gmail.com](mailto:desaivinayak449@gmail.com)
Please acknowledge receipt and provide a remediation timeline when opening issues or contacting the reporter.
Coordinated disclosure is requested — **public disclosure should be delayed until remediation is complete** (see `DISCLOSURE_POLICY.md`).
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## 📄 License
🪪 This repository is distributed under the **MIT License**.
See `LICENSE` for full terms.
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