mcp-server-semgrep
Version:
MCP Server for Semgrep Integration - static code analysis with AI
72 lines (71 loc) • 2.17 kB
YAML
rules:
- id: os-system-injection
languages:
- python
severity: ERROR
message: >-
User data detected in os.system. This could be vulnerable to a command injection and should be avoided.
If this
must be done, use the 'subprocess' module instead and pass the arguments as a list.
metadata:
cwe:
- "CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')"
owasp:
- A01:2017 - Injection
- A03:2021 - Injection
references:
- https://owasp.org/www-community/attacks/Command_Injection
category: security
technology:
- flask
cwe2022-top25: true
cwe2021-top25: true
subcategory:
- audit
likelihood: MEDIUM
impact: HIGH
confidence: MEDIUM
pattern-either:
- patterns:
- pattern: os.system(...)
- pattern-either:
- pattern-inside: |
@$APP.route($ROUTE, ...)
def $FUNC(..., $ROUTEVAR, ...):
...
os.system(..., <... $ROUTEVAR ...>, ...)
- pattern-inside: |
@$APP.route($ROUTE, ...)
def $FUNC(..., $ROUTEVAR, ...):
...
$INTERM = <... $ROUTEVAR ...>
...
os.system(..., <... $INTERM ...>, ...)
- pattern: os.system(..., <... flask.request.$W.get(...) ...>, ...)
- pattern: os.system(..., <... flask.request.$W[...] ...>, ...)
- pattern: os.system(..., <... flask.request.$W(...) ...>, ...)
- pattern: os.system(..., <... flask.request.$W ...>, ...)
- patterns:
- pattern-inside: |
$INTERM = <... flask.request.$W.get(...) ...>
...
os.system(<... $INTERM ...>)
- pattern: os.system(...)
- patterns:
- pattern-inside: |
$INTERM = <... flask.request.$W[...] ...>
...
os.system(<... $INTERM ...>)
- pattern: os.system(...)
- patterns:
- pattern-inside: |
$INTERM = <... flask.request.$W(...) ...>
...
os.system(<... $INTERM ...>)
- pattern: os.system(...)
- patterns:
- pattern-inside: |
$INTERM = <... flask.request.$W ...>
...
os.system(<... $INTERM ...>)
- pattern: os.system(...)