Critical Data Exposure in Bolt: A Case of Misclassified Vulnerability

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Introduction

A recent discovery by security researcher Anirudh Kaila revealed a critical vulnerability in Bolt, exposing highly sensitive personal information, including an Estonian Identity Card. Despite the severity, Bugcrowd’s triage team misclassified the report as “Not Applicable,” raising concerns about vulnerability assessment protocols. This incident highlights gaps in bug bounty programs and the importance of proper validation.

Learning Objectives

  • Understand the risks of misclassified vulnerabilities in bug bounty programs.
  • Learn how to verify and report sensitive data exposure vulnerabilities.
  • Explore best practices for triaging high-severity security reports.

You Should Know

1. Identifying Sensitive Data Exposure

Command (Linux):

curl -s "https://example.com/api/userdata" | grep -E "SSN|ID_CARD|PASSPORT"

What It Does:

This command checks an API endpoint for exposed personally identifiable information (PII) such as Social Security Numbers (SSN), ID cards, or passport details.

Steps to Use:

  1. Replace `https://example.com/api/userdata` with the target API.

2. Run the command in a terminal.

  1. If output matches PII patterns, the endpoint may be leaking sensitive data.

2. Validating Data Exposure via Burp Suite

Tool Configuration:

  • Intercept the request in Burp Suite Proxy.
  • Forward to Repeater and analyze responses for PII.

Steps to Use:

1. Capture API requests in Burp Proxy.

2. Check response headers/body for unencrypted PII.

3. If found, document the exposure with screenshots.

3. Reporting a Bugcrowd Vulnerability Properly

Key Elements of a Strong Report:

  • “Exposed Estonian ID Card via Unsecured API”
  • Steps to Reproduce: Detailed, with screenshots.
  • Impact: Explain legal/privacy consequences (e.g., GDPR violations).

4. Escalating Misclassified Reports

Email Template for Escalation:

Subject: Urgent - Reassessment Required for Bolt PII Exposure (Report XXXXX)

Hi Bugcrowd Team,

My submission (Report XXXXX) involves exposed Estonian ID card data, a clear GDPR violation. The initial "Not Applicable" classification overlooks the legal severity. Requesting re-evaluation.

Regards, 
[Your Name]

5. Preventing False Negatives in Triage

For Security Teams:

  • Implement mandatory PII detection training for triagers.
  • Use automated scanners (e.g., TruffleHog) to detect secrets in bug reports.

What Undercode Say

  • Key Takeaway 1: Misclassification of critical vulnerabilities can lead to regulatory penalties and reputational damage.
  • Key Takeaway 2: Researchers must escalate improperly closed reports with clear impact analysis.

Analysis:

This case underscores systemic issues in crowdsourced security testing. While bug bounty platforms rely on triagers, human error can result in false negatives. Automated validation tools and stricter escalation paths are needed to prevent such oversights. Companies must also ensure triagers understand regional data protection laws (e.g., GDPR, CCPA) to assess risks accurately.

Prediction

If unaddressed, repeated misclassifications may erode trust in bug bounty programs, discouraging researchers from reporting critical flaws. Future platforms may integrate AI-driven triage systems to reduce human bias and improve consistency in vulnerability assessments.

IT/Security Reporter URL:

Reported By: Anirudhkaila Recently – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅

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