| 1 | from fastapi import APIRouter |
| 2 | from fastapi import Depends |
| 3 | from fastapi import Security |
| 4 | from loguru import logger |
| 5 | from sqlalchemy.ext.asyncio import AsyncSession |
| 6 | |
| 7 | from app.auth.routes.auth import AuthHandler |
| 8 | from app.db.db_session import get_db |
| 9 | from app.integrations.modules.schema.sap_siem import CollectSapSiemRequest |
| 10 | from app.integrations.modules.schema.sap_siem import CustomerDetails |
| 11 | from app.integrations.modules.schema.sap_siem import InvokeSapSiemAnalysis |
| 12 | from app.integrations.modules.schema.sap_siem import InvokeSapSiemRequest |
| 13 | from app.integrations.modules.schema.sap_siem import InvokeSAPSiemResponse |
| 14 | from app.integrations.modules.schema.sap_siem import SapSiemAuthKeys |
| 15 | from app.integrations.modules.services.sap_siem.collect import ( |
| 16 | post_to_copilot_sap_module_brute_force_failed_logins_multiple_ips, |
| 17 | ) |
| 18 | from app.integrations.modules.services.sap_siem.collect import ( |
| 19 | post_to_copilot_sap_module_brute_force_failed_logins_same_ip, |
| 20 | ) |
| 21 | from app.integrations.modules.services.sap_siem.collect import ( |
| 22 | post_to_copilot_sap_module_collect, |
| 23 | ) |
| 24 | from app.integrations.modules.services.sap_siem.collect import ( |
| 25 | post_to_copilot_sap_module_same_user_failed_login_from_different_geo_location, |
| 26 | ) |
| 27 | from app.integrations.modules.services.sap_siem.collect import ( |
| 28 | post_to_copilot_sap_module_same_user_failed_login_from_different_ip, |
| 29 | ) |
| 30 | from app.integrations.modules.services.sap_siem.collect import ( |
| 31 | post_to_copilot_sap_module_same_user_successful_login_from_different_geo_location, |
| 32 | ) |
| 33 | from app.integrations.modules.services.sap_siem.collect import ( |
| 34 | post_to_copilot_sap_module_sap_siem_successful_user_login_with_different_ip, |
| 35 | ) |
| 36 | from app.integrations.modules.services.sap_siem.collect import ( |
| 37 | post_to_copilot_sap_module_successful_login_after_multiple_failed_logins, |
| 38 | ) |
| 39 | from app.integrations.routes import find_customer_integration |
| 40 | from app.integrations.utils.utils import extract_auth_keys |
| 41 | from app.integrations.utils.utils import get_customer_integration_response |
| 42 | from app.utils import get_customer_meta_attribute |
| 43 | |
| 44 | module_sap_siem_router = APIRouter() |
| 45 | |
| 46 | |
| 47 | @module_sap_siem_router.post( |
| 48 | "", |
| 49 | response_model=InvokeSAPSiemResponse, |
| 50 | description="Pull down SAP SIEM Events.", |
| 51 | dependencies=[Security(AuthHandler().require_any_scope("admin", "analyst"))], |
| 52 | ) |
| 53 | async def collect_sap_siem_route(sap_siem_request: InvokeSapSiemRequest, session: AsyncSession = Depends(get_db)): |
| 54 | """Pull down SAP SIEM Events.""" |
| 55 | customer_integration_response = await get_customer_integration_response( |
| 56 | sap_siem_request.customer_code, |
| 57 | session, |
| 58 | ) |
| 59 | |
| 60 | customer_integration = await find_customer_integration( |
| 61 | sap_siem_request.customer_code, |
| 62 | sap_siem_request.integration_name, |
| 63 | customer_integration_response, |
| 64 | ) |
| 65 | |
| 66 | sap_siem_auth_keys = extract_auth_keys(customer_integration, service_name="SAP SIEM") |
| 67 | |
| 68 | logger.info(f"SAP SIEM Auth Keys: {sap_siem_auth_keys}") |
| 69 | |
| 70 | auth_keys = SapSiemAuthKeys(**sap_siem_auth_keys) |
| 71 | # if multiple apiKey values are present, make a loop to iterate through them |
| 72 | # and collect the data for each apiKey |
| 73 | if "," in auth_keys.API_KEY: |
| 74 | api_keys = auth_keys.API_KEY.split(",") |
| 75 | for key in api_keys: |
| 76 | await post_to_copilot_sap_module_collect( |
| 77 | data=CollectSapSiemRequest( |
| 78 | auth_keys=SapSiemAuthKeys( |
| 79 | API_KEY=key, |
| 80 | SECRET_KEY=auth_keys.SECRET_KEY, |
| 81 | USER_KEY=auth_keys.USER_KEY, |
| 82 | API_DOMAIN=auth_keys.API_DOMAIN, |
| 83 | ), |
| 84 | customer_code=sap_siem_request.customer_code, |
| 85 | integration_name=sap_siem_request.integration_name, |
| 86 | threshold=sap_siem_request.threshold, |
| 87 | time_range=sap_siem_request.time_range, |
| 88 | customer_details=CustomerDetails( |
| 89 | customer_code=sap_siem_request.customer_code, |
| 90 | iris_customer_id=( |
| 91 | await get_customer_meta_attribute( |
| 92 | customer_code=sap_siem_request.customer_code, |
| 93 | column_name="customer_meta_iris_customer_id", |
| 94 | session=session, |
| 95 | ) |
| 96 | ), |
| 97 | ), |
| 98 | ), |
| 99 | ) |
| 100 | else: |
| 101 | await post_to_copilot_sap_module_collect( |
| 102 | data=InvokeSapSiemRequest( |
| 103 | auth_keys=SapSiemAuthKeys( |
| 104 | API_KEY=auth_keys.API_KEY, |
| 105 | SECRET_KEY=auth_keys.SECRET_KEY, |
| 106 | USER_KEY=auth_keys.USER_KEY, |
| 107 | API_DOMAIN=auth_keys.API_DOMAIN, |
| 108 | ), |
| 109 | customer_code=sap_siem_request.customer_code, |
| 110 | integration_name=sap_siem_request.integration_name, |
| 111 | threshold=sap_siem_request.threshold, |
| 112 | time_range=sap_siem_request.time_range, |
| 113 | customer_details=CustomerDetails( |
| 114 | customer_code=sap_siem_request.customer_code, |
| 115 | iris_customer_id=(await get_customer_meta_attribute(sap_siem_request.customer_code, "customer_meta_iris_customer_id")), |
| 116 | ), |
| 117 | ), |
| 118 | ) |
| 119 | |
| 120 | return InvokeSAPSiemResponse(success=True, message="SAP SIEM Events collected successfully.") |
| 121 | |
| 122 | |
| 123 | @module_sap_siem_router.post( |
| 124 | "/successful_user_login_with_different_ip", |
| 125 | response_model=InvokeSAPSiemResponse, |
| 126 | description="Rule: Successful user login after using different IP addresses\n\n" |
| 127 | "Period: within 15 minutes\n\n" |
| 128 | "Prerequisite: \n\n" |
| 129 | "- Login attempts from different IP addresses, regardless of login status (at least 2 failed IP addresses)\n\n" |
| 130 | "- Successful login afterwards (from the third successful IP address)\n\n" |
| 131 | "Result: User compressed, IP addresses belong to an attack network", |
| 132 | dependencies=[Security(AuthHandler().require_any_scope("admin", "analyst"))], |
| 133 | ) |
| 134 | async def invoke_sap_siem_successful_user_login_with_different_ip_route( |
| 135 | invoke_siem_analysis: InvokeSapSiemAnalysis, |
| 136 | ): |
| 137 | logger.info("Invoking SAP SIEM integration for successful user login with different IP.") |
| 138 | await post_to_copilot_sap_module_sap_siem_successful_user_login_with_different_ip( |
| 139 | data=InvokeSapSiemAnalysis( |
| 140 | threshold=invoke_siem_analysis.threshold, |
| 141 | time_range=invoke_siem_analysis.time_range, |
| 142 | iris_customer_id=invoke_siem_analysis.iris_customer_id, |
| 143 | ), |
| 144 | ) |
| 145 | |
| 146 | return InvokeSAPSiemResponse(success=True, message="SAP SIEM Events collected successfully.") |
| 147 | |
| 148 | |
| 149 | @module_sap_siem_router.post( |
| 150 | "/same_user_failed_login_from_different_ip", |
| 151 | response_model=InvokeSAPSiemResponse, |
| 152 | description="Rule: Same user from different IP addresses\n\n" |
| 153 | "Period: within 10 minutes\n\n" |
| 154 | "Prerequisite: \n\n" |
| 155 | "- At least 3 failed login attempts with the same user name from 3 different IP addresses\n\n" |
| 156 | "Result: User compressed, IP addresses belong to an attack network", |
| 157 | dependencies=[Security(AuthHandler().require_any_scope("admin", "analyst"))], |
| 158 | ) |
| 159 | async def invoke_sap_siem_same_user_failed_login_from_different_ip_route( |
| 160 | invoke_siem_analysis: InvokeSapSiemAnalysis, |
| 161 | ): |
| 162 | logger.info("Invoking SAP SIEM integration for same user failed login from different IP.") |
| 163 | await post_to_copilot_sap_module_same_user_failed_login_from_different_ip( |
| 164 | data=InvokeSapSiemAnalysis( |
| 165 | threshold=invoke_siem_analysis.threshold, |
| 166 | time_range=invoke_siem_analysis.time_range, |
| 167 | iris_customer_id=invoke_siem_analysis.iris_customer_id, |
| 168 | ), |
| 169 | ) |
| 170 | |
| 171 | return InvokeSAPSiemResponse(success=True, message="SAP SIEM Events collected successfully.") |
| 172 | |
| 173 | |
| 174 | @module_sap_siem_router.post( |
| 175 | "/same_user_failed_login_from_different_geo_location", |
| 176 | response_model=InvokeSAPSiemResponse, |
| 177 | description="Rule: Same user from different geo locations\n\n" |
| 178 | "Period: within 20 minutes\n\n" |
| 179 | "Prerequisite: \n\n" |
| 180 | "- At least 3 failed login attempts with the same user name from at least two different GEO IP country locations\n\n" |
| 181 | "Result: User compressed, IP addresses belong to an attack network", |
| 182 | dependencies=[Security(AuthHandler().require_any_scope("admin", "analyst"))], |
| 183 | ) |
| 184 | async def invoke_sap_siem_same_user_failed_login_from_different_geo_location_route( |
| 185 | invoke_siem_analysis: InvokeSapSiemAnalysis, |
| 186 | ): |
| 187 | logger.info("Invoking SAP SIEM integration for same user failed login from different geo location.") |
| 188 | await post_to_copilot_sap_module_same_user_failed_login_from_different_geo_location( |
| 189 | data=InvokeSapSiemAnalysis( |
| 190 | threshold=invoke_siem_analysis.threshold, |
| 191 | time_range=invoke_siem_analysis.time_range, |
| 192 | iris_customer_id=invoke_siem_analysis.iris_customer_id, |
| 193 | ), |
| 194 | ) |
| 195 | |
| 196 | return InvokeSAPSiemResponse(success=True, message="SAP SIEM Events collected successfully.") |
| 197 | |
| 198 | |
| 199 | @module_sap_siem_router.post( |
| 200 | "/same_user_successful_login_from_different_geo_location", |
| 201 | response_model=InvokeSAPSiemResponse, |
| 202 | description="Rule: Same user from different geo locations\n\n" |
| 203 | "Period: within 20 minutes\n\n" |
| 204 | "Prerequisite: \n\n" |
| 205 | "- At least 1 failed login attempt with the same username from two different GEO IP country locations\n\n" |
| 206 | "- from the 2nd successful login thereafter in another GEO IP country location\n\n" |
| 207 | "Result: User compressed, IP addresses belong to an attack network\n\n" |
| 208 | "This function would trigger a suspicious login when the following conditions are met:\n\n" |
| 209 | "1. There is at least one failed login attempt from the same user (identified by `login_id`) from two different GEO IP country locations within the last 20 minutes.\n" |
| 210 | "2. There is at least one successful login attempt from the same user from a different GEO IP country location within the last 20 minutes.\n\n" |
| 211 | "Here are some examples:\n\n" |
| 212 | "Example 1:\n" |
| 213 | "- At 12:00, a failed login attempt is made by user `user1` from IP `1.1.1.1` located in the US.\n" |
| 214 | "- At 12:10, another failed login attempt is made by `user1` from IP `2.2.2.2` located in Canada.\n" |
| 215 | "- At 12:15, a successful login attempt is made by `user1` from IP `3.3.3.3` located in the UK.\n" |
| 216 | "- In this case, the function would trigger a suspicious login for `user1` because there are failed login attempts from two different countries (US and Canada) " |
| 217 | "and a successful login from a different country (UK) within 20 minutes.\n\n" |
| 218 | "Example 2:\n" |
| 219 | "- At 12:00, a failed login attempt is made by user `user2` from IP `4.4.4.4` located in the US.\n" |
| 220 | "- At 12:10, another failed login attempt is made by `user2` from IP `5.5.5.5` also located in the US.\n" |
| 221 | "- At 12:15, a successful login attempt is made by `user2` from IP `6.6.6.6` located in the US.\n" |
| 222 | "- In this case, the function would not trigger a suspicious login for `user2` because all the login attempts are from the same country (US).", |
| 223 | dependencies=[Security(AuthHandler().require_any_scope("admin", "analyst"))], |
| 224 | ) |
| 225 | async def invoke_sap_siem_same_user_successful_login_from_different_geo_location_route( |
| 226 | invoke_siem_analysis: InvokeSapSiemAnalysis, |
| 227 | ): |
| 228 | logger.info("Invoking SAP SIEM integration for same user successful login from different geo location.") |
| 229 | await post_to_copilot_sap_module_same_user_successful_login_from_different_geo_location( |
| 230 | data=InvokeSapSiemAnalysis( |
| 231 | threshold=invoke_siem_analysis.threshold, |
| 232 | time_range=invoke_siem_analysis.time_range, |
| 233 | iris_customer_id=invoke_siem_analysis.iris_customer_id, |
| 234 | ), |
| 235 | ) |
| 236 | |
| 237 | return InvokeSAPSiemResponse(success=True, message="SAP SIEM Events collected successfully.") |
| 238 | |
| 239 | |
| 240 | @module_sap_siem_router.post( |
| 241 | "/brute_force_failed_logins_multiple_ips", |
| 242 | response_model=InvokeSAPSiemResponse, |
| 243 | description="Rule: Logins from different IP addresses\n\n" |
| 244 | "Period: within 3 minutes\n\n" |
| 245 | "Prerequisite: \n\n" |
| 246 | "- At least 25 failed login attempts from different IP addresses\n\n" |
| 247 | "Result: IP addresses belong to an attack network", |
| 248 | dependencies=[Security(AuthHandler().require_any_scope("admin", "analyst"))], |
| 249 | ) |
| 250 | async def invoke_sap_siem_brute_force_failed_logins_route( |
| 251 | invoke_siem_analysis: InvokeSapSiemAnalysis, |
| 252 | ): |
| 253 | logger.info("Invoking SAP SIEM integration for brute force failed logins.") |
| 254 | await post_to_copilot_sap_module_brute_force_failed_logins_multiple_ips( |
| 255 | data=InvokeSapSiemAnalysis( |
| 256 | threshold=invoke_siem_analysis.threshold, |
| 257 | time_range=invoke_siem_analysis.time_range, |
| 258 | iris_customer_id=invoke_siem_analysis.iris_customer_id, |
| 259 | ), |
| 260 | ) |
| 261 | |
| 262 | return InvokeSAPSiemResponse(success=True, message="SAP SIEM Events collected successfully.") |
| 263 | |
| 264 | |
| 265 | @module_sap_siem_router.post( |
| 266 | "/brute_force_failed_logins_same_ip", |
| 267 | response_model=InvokeSAPSiemResponse, |
| 268 | description="Rule: Logins from the same IP address\n\n" |
| 269 | "Period: within 5 minutes\n\n" |
| 270 | "Prerequisite: \n\n" |
| 271 | "- At least 10 different user name failed login attempts from the same IP address\n\n" |
| 272 | "Result: IP addresses belong to an attack network", |
| 273 | dependencies=[Security(AuthHandler().require_any_scope("admin", "analyst"))], |
| 274 | ) |
| 275 | async def invoke_sap_siem_brute_force_failed_logins_same_ip_route( |
| 276 | invoke_siem_analysis: InvokeSapSiemAnalysis, |
| 277 | ): |
| 278 | logger.info("Invoking SAP SIEM integration for brute force failed logins from the same IP.") |
| 279 | await post_to_copilot_sap_module_brute_force_failed_logins_same_ip( |
| 280 | data=InvokeSapSiemAnalysis( |
| 281 | threshold=invoke_siem_analysis.threshold, |
| 282 | time_range=invoke_siem_analysis.time_range, |
| 283 | iris_customer_id=invoke_siem_analysis.iris_customer_id, |
| 284 | ), |
| 285 | ) |
| 286 | |
| 287 | return InvokeSAPSiemResponse(success=True, message="SAP SIEM Events collected successfully.") |
| 288 | |
| 289 | |
| 290 | @module_sap_siem_router.post( |
| 291 | "/successful_login_after_multiple_failed_logins", |
| 292 | response_model=InvokeSAPSiemResponse, |
| 293 | description="Rule: Successful login after multiple failed logins\n\n" |
| 294 | "Period: within 2 minutes\n\n" |
| 295 | "Prerequisite: \n\n" |
| 296 | "- At least 3 different user names that have failed from the same IP addressn\n" |
| 297 | "- At least one successful login from the same IP address after 3 different user names. \n\n" |
| 298 | "Result: User compromised, IP address belongs to an attack network", |
| 299 | dependencies=[Security(AuthHandler().require_any_scope("admin", "analyst"))], |
| 300 | ) |
| 301 | async def invoke_sap_siem_successful_login_after_multiple_failed_logins_route( |
| 302 | invoke_siem_analysis: InvokeSapSiemAnalysis, |
| 303 | ): |
| 304 | logger.info("Invoking SAP SIEM integration for successful login after multiple failed logins.") |
| 305 | await post_to_copilot_sap_module_successful_login_after_multiple_failed_logins( |
| 306 | data=InvokeSapSiemAnalysis( |
| 307 | threshold=invoke_siem_analysis.threshold, |
| 308 | time_range=invoke_siem_analysis.time_range, |
| 309 | iris_customer_id=invoke_siem_analysis.iris_customer_id, |
| 310 | ), |
| 311 | ) |
| 312 | |
| 313 | return InvokeSAPSiemResponse(success=True, message="SAP SIEM Events collected successfully.") |