[보안 이슈] Cisco 제품 보안 업데이트 권고

 

 

□ 개요
 o Cisco社는 자사 제품의 취약점을 해결한 보안 업데이트 공지
 o 영향받는 버전을 사용 중인 이용자는 최신 버전으로 업데이트 권고

□ 설명
 o Cisco IOS XR Software에서 특정 이더넷 프레임에 대한 처리가 미흡하여 발생하는 서비스거부 취약점(CVE-2021-34713) [1]
 o Cisco IOS XR Software에서 소켓 생성에 대한 처리가 미흡하여 발생하는 서비스거부 취약점(CVE-2021-34720) [2]
 o Cisco IOS XR Software에서 입력값 검증이 미흡하여 발생하는 임의파일 읽기 및 쓰기 취약점(CVE-2021-34718) [3]
 o Cisco IOS XR Software에서 입력값 검증이 미흡하여 발생하는 권한상승 취약점(CVE-2021-34728) 등 2개 [4]
 
□ 영향받는 제품 및 해결 방안
 ※ 참고 사이트에 명시되어 있는 ‘Fixed Software’ 내용을 참고하여 패치 적용
 
□ 기타 문의사항
 o 한국인터넷진흥원 사이버민원센터: 국번없이 118
 
[참고사이트]
[1] https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-npspin-QYpwdhFD
[2] https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ipsla-ZA3SRrpP
[3] https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxr-scp-inject-QwZOCv2
[4] https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxr-privescal-dZYMrKf


□ 작성 : 침해사고분석단 취약점분석팀