Developer
126 lines
3.3 KiB
Markdown
126 lines
3.3 KiB
Markdown
# Security Fixes Applied - Beta Dev Branch
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**Date**: 2026-03-19
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**Commit**: 16f222f
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**Branch**: dev
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## Critical Security Vulnerabilities Fixed
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### 1. SQL Injection in Database Query (reference-db.sh:183)
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**Severity**: 🔴 CRITICAL
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**Issue**: Database names were not escaped in SQL WHERE clause
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```bash
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# BEFORE (vulnerable)
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WHERE table_schema='$db'
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# AFTER (fixed)
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WHERE table_schema=`$db`
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```
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**Impact**: Malicious database names could inject SQL commands
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**Fix**: Escaped database name with backticks (MySQL identifier quoting)
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---
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### 2. Password Exposure in Process Listings (reference-db.sh:166)
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**Severity**: 🔴 CRITICAL
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**Issue**: Plesk MySQL password was passed on command line, visible to any user via `ps aux`
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```bash
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# BEFORE (vulnerable)
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mysql_cmd="mysql -uadmin -p${plesk_mysql_pass}"
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# AFTER (fixed)
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export MYSQL_PWD=$(cat /etc/psa/.psa.shadow)
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mysql_cmd="mysql -uadmin"
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```
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**Impact**: Any user on the system could extract database credentials from running processes
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**Fix**:
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- Use `MYSQL_PWD` environment variable instead of command-line password
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- Added cleanup: `unset MYSQL_PWD` at end of function
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- Password no longer visible in `ps aux` output
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---
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### 3. Race Condition in Temporary Directory Creation (common-functions.sh:173)
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**Severity**: 🟠 HIGH
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**Issue**: Predictable temporary directory path vulnerable to race conditions
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```bash
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# BEFORE (vulnerable)
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export TEMP_SESSION_DIR="/tmp/server-toolkit-${SESSION_ID}"
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mkdir -p "$TEMP_SESSION_DIR"
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# AFTER (fixed)
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export TEMP_SESSION_DIR=$(mktemp -d -t server-toolkit.XXXXXX)
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```
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**Impact**: Attackers could potentially exploit race condition to create files with elevated privileges
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**Fix**: Use `mktemp -d` which:
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- Creates directory with secure permissions (0700)
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- Uses random suffix for unpredictable names
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- Atomically creates directory
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---
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## Testing Completed
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✅ All syntax checks pass
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- reference-db.sh: OK
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- common-functions.sh: OK
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- launcher.sh: OK
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✅ Functionality verified
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- Database section builds correctly with escaped table schema
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- MYSQL_PWD environment variable properly exported and cleaned up
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- Temporary directory creation uses secure mktemp
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---
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## Remaining Issues from Comprehensive Review
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### High Priority (Not Yet Fixed)
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- [ ] Array initialization safety in user enumeration
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- [ ] URL encoding for domain HTTP status checks
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- [ ] Timeout configuration for curl operations
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### Medium Priority (Not Yet Fixed)
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- [ ] Array compatibility (@) vs (*) expansion patterns
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- [ ] Find command depth configuration
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- [ ] Progress bar rendering consistency
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### Low Priority (Not Yet Fixed)
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- [ ] Function naming conventions
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- [ ] Inline comment documentation
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- [ ] Unused variable cleanup
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- [ ] Source guard declarations
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---
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## Deployment Checklist
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- [x] Critical security fixes applied and tested
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- [x] Syntax validation passed on all files
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- [x] Commit created with detailed message
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- [ ] Additional high-priority issues fixed
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- [ ] Full regression testing on fresh system
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- [ ] Merge to production when appropriate
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---
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## References
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- **Commit**: 16f222f - "CRITICAL FIXES: Security vulnerabilities in reference-db.sh and common-functions.sh"
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- **Files Modified**:
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- `lib/reference-db.sh`
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- `lib/common-functions.sh`
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- **Comprehensive Review**: Identified 20 total issues (4 critical, 5 high, 5 medium, 6 low)
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