Add YAML security rules for pg and redis libraries in Ruby applications #105
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WalkthroughThis pull request introduces new YAML files that define security rules for Ruby applications, specifically targeting the Changes
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Actionable comments posted: 6
🧹 Outside diff range and nitpick comments (7)
tests/ruby/ruby-redis-empty-secret-ruby-test.yml (1)
5-15: Consider adding more edge cases to strengthen test coverage.While the current invalid cases cover direct empty strings and variable assignments, consider adding these scenarios:
- Nil password
- Whitespace-only password
- Password containing only special characters
Would you like me to provide the additional test cases?
rules/ruby/security/ruby-redis-empty-secret-ruby.yml (1)
4-10: Enhance security message with specific recommendations.While the current message explains the risk well, consider adding specific recommendations:
- Mention minimum password complexity requirements
- Suggest secure password storage solutions (e.g., AWS Secrets Manager, HashiCorp Vault)
- Add reference to Redis AUTH documentation
tests/ruby/ruby-pg-empty-password-ruby-test.yml (1)
44-44: Remove trailing whitespaceRemove the trailing whitespace on line 44.
🧰 Tools
🪛 yamllint (1.35.1)
[error] 44-44: trailing spaces
(trailing-spaces)
tests/__snapshots__/ruby-pg-empty-password-ruby-snapshot.yml (1)
1-309: Consider adding test cases for additional scenariosThe test suite could be enhanced with additional scenarios:
- Connection string URLs
- SSL certificate validation
- Connection pooling configurations
- Retry mechanisms
Would you like me to help generate additional test cases for these scenarios?
rules/ruby/security/ruby-pg-hardcoded-secret-ruby.yml (1)
15-259: Consider adding pattern for ENV usage examplesThe utility patterns effectively cover various forms of hardcoded secrets, but could be enhanced by including examples of secure alternatives using environment variables in the comments.
Add examples like:
# Good: PG.connect(password: ENV['DB_PASSWORD']) # Good: PG.connect(password: Rails.application.credentials.database_password)rules/ruby/security/ruby-pg-empty-password-ruby.yml (1)
4-14: Enhance security context in the messageWhile the message is clear, it could benefit from additional context about minimum password requirements and authentication best practices.
Add to the message:
This can lead to unauthorized access by either an internal or external malicious actor. To prevent this vulnerability, enforce authentication when connecting to a database by using environment variables to securely provide credentials or retrieving them from a secure vault or HSM - (Hardware Security Module). + (Hardware Security Module). Ensure that database passwords meet minimum + complexity requirements and are rotated regularly according to your + organization's security policies.tests/__snapshots__/ruby-pg-hardcoded-secret-ruby-snapshot.yml (1)
1-325: Add test cases for additional scenariosWhile the current test coverage is good, consider adding test cases for:
- Connection strings with URL format
- Connection info from YAML/JSON files
- Heredoc password strings
Add test cases like:
# URL format PG.connect("postgres://user:password@host:5432/dbname") # YAML config config = YAML.load_file('database.yml') PG.connect(password: config['password']) # Heredoc PG.connect(password: <<-EOT password EOT )
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📒 Files selected for processing (9)
rules/ruby/security/ruby-pg-empty-password-ruby.yml(1 hunks)rules/ruby/security/ruby-pg-hardcoded-secret-ruby.yml(1 hunks)rules/ruby/security/ruby-redis-empty-secret-ruby.yml(1 hunks)tests/__snapshots__/ruby-pg-empty-password-ruby-snapshot.yml(1 hunks)tests/__snapshots__/ruby-pg-hardcoded-secret-ruby-snapshot.yml(1 hunks)tests/__snapshots__/ruby-redis-empty-secret-ruby-snapshot.yml(1 hunks)tests/ruby/ruby-pg-empty-password-ruby-test.yml(1 hunks)tests/ruby/ruby-pg-hardcoded-secret-ruby-test.yml(1 hunks)tests/ruby/ruby-redis-empty-secret-ruby-test.yml(1 hunks)
🧰 Additional context used
🪛 yamllint (1.35.1)
rules/ruby/security/ruby-redis-empty-secret-ruby.yml
[warning] 18-18: wrong indentation: expected 4 but found 3
(indentation)
[warning] 20-20: wrong indentation: expected 5 but found 4
(indentation)
[warning] 21-21: wrong indentation: expected 8 but found 7
(indentation)
[error] 52-52: trailing spaces
(trailing-spaces)
[warning] 58-58: wrong indentation: expected 4 but found 3
(indentation)
[warning] 60-60: wrong indentation: expected 5 but found 4
(indentation)
[warning] 61-61: wrong indentation: expected 8 but found 7
(indentation)
[error] 96-96: trailing spaces
(trailing-spaces)
tests/ruby/ruby-pg-empty-password-ruby-test.yml
[error] 44-44: trailing spaces
(trailing-spaces)
tests/ruby/ruby-pg-hardcoded-secret-ruby-test.yml
[error] 44-44: trailing spaces
(trailing-spaces)
🔇 Additional comments (5)
tests/ruby/ruby-redis-empty-secret-ruby-test.yml (1)
2-4: LGTM! Good practice using environment variables for credentials.
The valid test case demonstrates secure credential management by using environment variables.
tests/__snapshots__/ruby-redis-empty-secret-ruby-snapshot.yml (1)
1-150: LGTM! Comprehensive test snapshots.
The snapshots provide good coverage of the test cases with proper source mapping and consistent style definitions.
rules/ruby/security/ruby-pg-hardcoded-secret-ruby.yml (2)
4-14: LGTM! Clear and informative message with proper references.
The message effectively communicates the security risk and provides actionable remediation steps. The reference to OWASP Secrets Management Cheat Sheet is particularly helpful.
259-269: Verify pattern coverage for all connection methods
The rule patterns look comprehensive, but let's verify we're not missing any connection methods.
✅ Verification successful
The previous search didn't yield results because we need to verify if we have Ruby files in the codebase. Since this is a security rule definition file, we should also check other similar rules and examples to ensure comprehensive coverage.
The output shows we have two PG-related rule files. We should examine both to ensure consistent and comprehensive coverage of connection patterns between them, as they might complement each other.
Pattern coverage for PG connection methods is comprehensive
After analyzing both PG-related rule files, the coverage is complete and well-structured. The rules cover:
- All main connection methods:
PG.connectandPG::Connection.new - Both connection styles: keyword arguments (
password:) and positional arguments - Both direct string values and instance variable assignments
- The
connect_startmethod is also included in the regex patterns - Both empty password and hardcoded password scenarios are handled
The patterns are consistent between both rules and cover all the standard ways to establish PostgreSQL connections in Ruby using the pg gem.
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash
# Search for all PG connection methods in the codebase
rg -t ruby '(PG|PG::Connection)\.(connect|connect_start|new|setdb|open)'
Length of output: 223
Script:
#!/bin/bash
# Let's first check if there are any Ruby files in the codebase
fd -e rb
# Then let's look for test files or examples that might contain PG connection patterns
fd -e yml . rules/ruby/
Length of output: 195
Script:
#!/bin/bash
# Let's examine the content of both PG-related rule files to compare patterns
cat rules/ruby/security/ruby-pg-empty-password-ruby.yml rules/ruby/security/ruby-pg-hardcoded-secret-ruby.yml
# Also check if there are any example files that might show PG usage patterns
fd -e rb . examples/ || true
Length of output: 15291
rules/ruby/security/ruby-pg-empty-password-ruby.yml (1)
264-274: Verify rule catches all empty password variations
The patterns look comprehensive, but let's verify we're catching all empty password variations.
✅ Verification successful
Rule comprehensively catches all empty password variations
After analyzing the rule definition and test cases, the rule successfully catches all common variations of empty password scenarios:
- Direct empty string in keyword arguments:
password: "" - Empty string in positional arguments (7th position)
- Variable-based empty passwords:
pw = ""; password: pw - Both
PG.connectandPG::Connection.new/connect_startmethods - Both hash-style (
:password => "") and newer keyword arguments (password: "")
The test cases provide good coverage with valid and invalid examples, and the snapshots confirm proper pattern matching.
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash
# Search for potential empty password patterns in Ruby files
rg -t ruby '(?i)(password|pwd)(\s*=\s*["\']\s*["\']|\s*:\s*["\']\s*["\'])'
Length of output: 116
Script:
#!/bin/bash
# Search for potential empty password patterns in Ruby files, fixing the regex
rg -t ruby '(?i)(password|pwd)(\s*=\s*["\''\'']?\s*["\''\'']|\s*:\s*["\''\'']?\s*["\''\''])'
# Also search for PG.connect and PG::Connection patterns to ensure we're covering all cases
rg -t ruby 'PG\.(connect|Connection\.new).*password'
Length of output: 431
Script:
#!/bin/bash
# Let's first check what Ruby files exist in the repository
fd '\.rb$'
# Let's also check test files that might contain examples of PG usage
fd '\.rb$' test/
# Check for any files containing 'pg' in their name or content
fd -i pg
# Look at the content of the rule file to understand the context better
cat rules/ruby/security/ruby-pg-empty-password-ruby.yml
Length of output: 8093
Script:
#!/bin/bash
# Let's check the test cases to verify the rule's coverage
cat tests/ruby/ruby-pg-empty-password-ruby-test.yml
# Also check the snapshot to see what patterns are being caught
cat tests/__snapshots__/ruby-pg-empty-password-ruby-snapshot.yml
Length of output: 8134
| Redis.new(..., password:"", ...)_with_instance: | ||
| # Redis.new(..., password: $PASS, ...) | ||
| kind: call | ||
| all: | ||
| - has: | ||
| stopBy: neighbor | ||
| kind: constant | ||
| regex: ^Redis$ | ||
| - has: | ||
| stopBy: neighbor | ||
| regex: ^.$ | ||
| - has: | ||
| stopBy: neighbor | ||
| kind: identifier | ||
| regex: ^new$ | ||
| - has: | ||
| stopBy: neighbor | ||
| kind: argument_list | ||
| has: | ||
| stopBy: end | ||
| kind: pair | ||
| all: | ||
| - has: | ||
| stopBy: neighbor | ||
| kind: hash_key_symbol | ||
| regex: ^password$ | ||
| - has: | ||
| stopBy: neighbor | ||
| kind: identifier | ||
| pattern: $PASS | ||
| - inside: | ||
| stopBy: end | ||
| kind: assignment | ||
| follows: | ||
| stopBy: end | ||
| kind: assignment | ||
| pattern: $PASS = "" | ||
| - inside: | ||
| stopBy: end | ||
| kind: program | ||
| has: | ||
| stopBy: end | ||
| kind: call | ||
| pattern: require "redis" |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Consider adding pattern for nil password detection.
The current patterns cover empty strings but might miss nil passwords.
Would you like me to provide the additional pattern definition?
🧰 Tools
🪛 yamllint (1.35.1)
[warning] 58-58: wrong indentation: expected 4 but found 3
(indentation)
[warning] 60-60: wrong indentation: expected 5 but found 4
(indentation)
[warning] 61-61: wrong indentation: expected 8 but found 7
(indentation)
[error] 96-96: trailing spaces
(trailing-spaces)
| utils: | ||
| Redis.new(..., password:"", ...): | ||
| # Redis.new(..., password: "", ...) | ||
| kind: call | ||
| all: | ||
| - has: | ||
| stopBy: neighbor | ||
| kind: constant | ||
| regex: ^Redis$ | ||
| - has: | ||
| stopBy: neighbor | ||
| regex: ^.$ | ||
| - has: | ||
| stopBy: neighbor | ||
| kind: identifier | ||
| regex: ^new$ | ||
| - has: | ||
| stopBy: neighbor | ||
| kind: argument_list | ||
| has: | ||
| stopBy: end | ||
| kind: pair | ||
| all: | ||
| - has: | ||
| stopBy: neighbor | ||
| kind: hash_key_symbol | ||
| regex: ^password$ | ||
| - has: | ||
| stopBy: neighbor | ||
| kind: string | ||
| not: | ||
| has: | ||
| stopBy: neighbor | ||
| kind: string_content | ||
| - inside: | ||
| stopBy: end | ||
| kind: program | ||
| has: | ||
| stopBy: end | ||
| kind: call | ||
| pattern: require "redis" |
There was a problem hiding this comment.
Fix indentation in the first pattern definition.
The YAML indentation is inconsistent, which could lead to parsing issues.
Apply this diff to fix the indentation:
utils:
Redis.new(..., password:"", ...):
- # Redis.new(..., password: "", ...)
- kind: call
- all:
- - has:
- stopBy: neighbor
+ # Redis.new(..., password: "", ...)
+ kind: call
+ all:
+ - has:
+ stopBy: neighborCommittable suggestion skipped: line range outside the PR's diff.
🧰 Tools
🪛 yamllint (1.35.1)
[warning] 18-18: wrong indentation: expected 4 but found 3
(indentation)
[warning] 20-20: wrong indentation: expected 5 but found 4
(indentation)
[warning] 21-21: wrong indentation: expected 8 but found 7
(indentation)
[error] 52-52: trailing spaces
(trailing-spaces)
| :sslmode => 'prefer' | ||
| ) | ||
| - | | ||
| con3 = PG::.connect nil, 5432, nil, nil, 'test', 'user', '' ) |
There was a problem hiding this comment.
Fix syntax error in PG connection test case
The connection syntax is incorrect. There's an extra colon after PG.
-con3 = PG::.connect nil, 5432, nil, nil, 'test', 'user', '' )
+con3 = PG.connect( nil, 5432, nil, nil, 'test', 'user', '' )📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| con3 = PG::.connect nil, 5432, nil, nil, 'test', 'user', '' ) | |
| con3 = PG.connect( nil, 5432, nil, nil, 'test', 'user', '' ) |
| :sslmode => 'prefer' | ||
| ) | ||
| - | | ||
| con3 = PG::.connect nil, 5432, nil, nil, 'test', 'user', 'password' ) |
There was a problem hiding this comment.
Fix syntax error in PG connection test case
The connection syntax is incorrect. There's an extra colon after PG.
-con3 = PG::.connect nil, 5432, nil, nil, 'test', 'user', 'password' )
+con3 = PG.connect( nil, 5432, nil, nil, 'test', 'user', 'password' )📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| con3 = PG::.connect nil, 5432, nil, nil, 'test', 'user', 'password' ) | |
| con3 = PG.connect( nil, 5432, nil, nil, 'test', 'user', 'password' ) |
| con1 = PG.connect( | ||
| :dbname => 'database', | ||
| :host => 'host', | ||
| :port => 1234, | ||
| :user => 'user', | ||
| :password => '', | ||
| :sslmode => 'prefer' | ||
| ) |
There was a problem hiding this comment.
Revise valid test case for hardcoded secret detection
The valid test case uses an empty password, which seems incorrect for a hardcoded secret test. Consider using environment variables or configuration management for a proper example.
-con1 = PG.connect(
-:dbname => 'database',
-:host => 'host',
-:port => 1234,
-:user => 'user',
-:password => '',
-:sslmode => 'prefer'
-)
+con1 = PG.connect(
+ :dbname => 'database',
+ :host => ENV['DB_HOST'],
+ :port => ENV['DB_PORT'].to_i,
+ :user => ENV['DB_USER'],
+ :password => ENV['DB_PASSWORD'],
+ :sslmode => 'prefer'
+)📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| con1 = PG.connect( | |
| :dbname => 'database', | |
| :host => 'host', | |
| :port => 1234, | |
| :user => 'user', | |
| :password => '', | |
| :sslmode => 'prefer' | |
| ) | |
| con1 = PG.connect( | |
| :dbname => 'database', | |
| :host => ENV['DB_HOST'], | |
| :port => ENV['DB_PORT'].to_i, | |
| :user => ENV['DB_USER'], | |
| :password => ENV['DB_PASSWORD'], | |
| :sslmode => 'prefer' | |
| ) |
| start: 17 | ||
| end: 145 | ||
| ? | | ||
| con3 = PG::.connect nil, 5432, nil, nil, 'test', 'user', '' ) |
There was a problem hiding this comment.
Fix snapshot to match corrected test case
This snapshot needs to be updated to match the corrected syntax in the test file.
-con3 = PG::.connect nil, 5432, nil, nil, 'test', 'user', '' )
+con3 = PG.connect( nil, 5432, nil, nil, 'test', 'user', '' )📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| con3 = PG::.connect nil, 5432, nil, nil, 'test', 'user', '' ) | |
| con3 = PG.connect( nil, 5432, nil, nil, 'test', 'user', '' ) |
Summary by CodeRabbit
New Features
Tests