Cisco 제품 보안 업데이트 권고
□ 개요
o Cisco는 자사 제품의 취약점을 해결한 보안 업데이트 공지 [1]
o 영향받는 버전을 사용 중인 이용자는 최신 버전으로 업데이트 권고
□ 설명
o Cisco IOS XE SD-WAN Software에서 경계값 검증이 미흡하여 발생하는 버퍼오버플로우 취약점(CVE-2021-34727) [2]
o Cisco IOS XE Software에서 로직 에러로 인해 발생하는 서비스거부 취약점(CVE-2021-34770, 1619) [3][4]
o Cisco IOS 및 IOS XE Software에서 발생하는 서비스거부 취약점(CVE-2021-34699) 등 12개 [5][6][7][8][9][10][11][12][13][14]
o Cisco Embedded Wireless Controller(EWC) Software에서 메모리 처리가 미흡하여 발생하는 서비스거부 취약점(CVE-2021-1615) [15]
o Cisco Access Points (APs) platforms에서 파일에 대한 검증이 미흡하여 발생하는 권한상승 취약점(CVE-2021-1419) [16]
o Cisco Aironet Access Point(AP) software에서 프레임에 대한 처리가 미흡하여 발생하는 서비스거부 취약점(CVE-2021-34740) [17]
□ 영향받는 제품 및 해결 방안
※ 참고 사이트에 명시되어 있는 ‘Fixed Software’ 내용을 참고하여 패치 적용
[참고사이트]
[1] https://tools.cisco.com/security/center/publicationListing.x
[2] https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxesdwan-rbuffover-vE2OB6tp
[3] https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ewlc-capwap-rce-LYgj8Kf
[4] https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-aaa-Yx47ZT8Q
[5] https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ratenat-pYVLA7wM
[6] https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ratenat-pYVLA7wM
[7] https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-quewedge-69BsHUBW
[8] https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ikev2-ebFrwMPr
[9] https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fxo-pattern-bypass-jUXgygYv
[10] https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ewlc-ipv6-dos-NMYeCnZv
[11] https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ewlc-gre-6u4ELzAT
[12] https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ewlc-capwap-dos-gmNjdKOY
[13] https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cbr8snmp-zGjkZ9Fc
[14] https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cbr8-cops-Vc2ZsJSx
[15] https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-ewc-dos-g6JruHRT
[16] https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cisco-ap-LLjsGxv
[17] https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-airo-wpa-pktleak-dos-uSTyGrL
