Cisco IOS接口不正確處理ipV4包遠程拒絕服務漏洞

嚴重程度：高
威脅程度：遠程拒絕服務
錯誤類型：設計錯誤
利用方式：服務器模式
CVE(CAN) ID：CAN-2003-0567

受影響系統
Cisco IOS 12.2YH
Cisco IOS 12.2YG
Cisco IOS 12.2YF
Cisco IOS 12.2YD
Cisco IOS 12.2YC
Cisco IOS 12.2YB
Cisco IOS 12.2YA
Cisco IOS 12.2XW
Cisco IOS 12.2XT
Cisco IOS 12.2XS
Cisco IOS 12.2XR
Cisco IOS 12.2XQ
Cisco IOS 12.2XK
Cisco IOS 12.2XJ
Cisco IOS 12.2XI
Cisco IOS 12.2XH
Cisco IOS 12.2XG
Cisco IOS 12.2XF
Cisco IOS 12.2XE
Cisco IOS 12.2XD
Cisco IOS 12.2XC
Cisco IOS 12.2XB
Cisco IOS 12.2XA
Cisco IOS 12.2T
Cisco IOS 12.2DD
Cisco IOS 12.2BC
Cisco IOS 12.2(3)
Cisco IOS 12.2(2.2)T
Cisco IOS 12.2(2)XA
Cisco IOS 12.2(1b)
Cisco IOS 12.2(11)T
Cisco IOS 12.2(1.1)
Cisco IOS 12.2(1)XQ
Cisco IOS 12.2(1)XH
Cisco IOS 12.2(1)XD1
Cisco IOS 12.2(1)
Cisco IOS 12.2 YH
Cisco IOS 12.2 YG
Cisco IOS 12.2 YF
Cisco IOS 12.2 YC
Cisco IOS 12.2 YB
Cisco IOS 12.2 YA
Cisco IOS 12.2 XM
Cisco IOS 12.2 XL
Cisco IOS 12.2 XK
Cisco IOS 12.2 XJ
Cisco IOS 12.2 XI
Cisco IOS 12.2 XH
Cisco IOS 12.2 XE
Cisco IOS 12.2 XD
Cisco IOS 12.2 XC
Cisco IOS 12.2 S
Cisco IOS 12.2 MB
Cisco IOS 12.2 DA
Cisco IOS 12.2 BZ
Cisco IOS 12.2 BY
Cisco IOS 12.2 BC
Cisco IOS 12.2 (7a)
Cisco IOS 12.2 (7)DA
Cisco IOS 12.2 (7)
Cisco IOS 12.2 (5)
Cisco IOS 12.2 (4)B
Cisco IOS 12.2 (13.03)B
Cisco IOS 12.2 (12.05)T
Cisco IOS 12.2 (12.05)S
Cisco IOS 12.2 (12.05)
Cisco IOS 12.2 (12.02)T
Cisco IOS 12.2 (12.02)S
Cisco IOS 12.2
Cisco IOS 12.2
Cisco IOS 12.1YH
Cisco IOS 12.1YF
Cisco IOS 12.1YE
Cisco IOS 12.1YD
Cisco IOS 12.1YC
Cisco IOS 12.1YB
Cisco IOS 12.1YA
Cisco IOS 12.1XZ
Cisco IOS 12.1XY
Cisco IOS 12.1XX
Cisco IOS 12.1XW
Cisco IOS 12.1XV
Cisco IOS 12.1XU
Cisco IOS 12.1XT
Cisco IOS 12.1XS
Cisco IOS 12.1XR
Cisco IOS 12.1XQ
Cisco IOS 12.1XP
Cisco IOS 12.1XM
Cisco IOS 12.1XL
Cisco IOS 12.1XK
Cisco IOS 12.1XJ
Cisco IOS 12.1XI
Cisco IOS 12.1XH
Cisco IOS 12.1XG
Cisco IOS 12.1XF
Cisco IOS 12.1XE
Cisco IOS 12.1XD
Cisco IOS 12.1XC
Cisco IOS 12.1XB
Cisco IOS 12.1XA
Cisco IOS 12.1T
Cisco IOS 12.1EZ
Cisco IOS 12.1EY
Cisco IOS 12.1EX
Cisco IOS 12.1EC
Cisco IOS 12.1EA
Cisco IOS 12.1E
Cisco IOS 12.1DC
Cisco IOS 12.1DB
Cisco IOS 12.1DA
Cisco IOS 12.1CX
Cisco IOS 12.1AA
Cisco IOS 12.10S
Cisco IOS 12.1(9)E
Cisco IOS 12.1(8a)E
Cisco IOS 12.1(8)E
Cisco IOS 12.1(8)
Cisco IOS 12.1(7)
Cisco IOS 12.1(6.5)EC3
Cisco IOS 12.1(6)EZ1
Cisco IOS 12.1(6)EY
Cisco IOS 12.1(5)YF2
Cisco IOS 12.1(5)YD2
Cisco IOS 12.1(5)YC1
Cisco IOS 12.1(5)YB4
Cisco IOS 12.1(5)XY6
Cisco IOS 12.1(5)XV3
Cisco IOS 12.1(5)XU1
Cisco IOS 12.1(5)XS
Cisco IOS 12.1(5)XR2
Cisco IOS 12.1(5)XG5
Cisco IOS 12.1(5)T
Cisco IOS 12.1(5)DC
Cisco IOS 12.1(5)DB1
Cisco IOS 12.1(5)DA1
Cisco IOS 12.1(4.3)T
Cisco IOS 12.1(4)XM4
Cisco IOS 12.1(4)DC
Cisco IOS 12.1(4)DB1
Cisco IOS 12.1(4)DB
Cisco IOS 12.1(4)
Cisco IOS 12.1(3)XT3
Cisco IOS 12.1(3)XP4
Cisco IOS 12.1(2)E1
Cisco IOS 12.1(1a)T1
Cisco IOS 12.1(13.4)E
Cisco IOS 12.1(12)E
Cisco IOS 12.1(11)E
Cisco IOS 12.1(10)E
Cisco IOS 12.1(1.3)T
Cisco IOS 12.1 YC
Cisco IOS 12.1 YB
Cisco IOS 12.1 XG
Cisco IOS 12.1 XF
Cisco IOS 12.1 EY
Cisco IOS 12.1 EX
Cisco IOS 12.1 EW
Cisco IOS 12.1 EC
Cisco IOS 12.1 EA
Cisco IOS 12.1 E
Cisco IOS 12.1 (12b)
Cisco IOS 12.1 (11b)
Cisco IOS 12.1 (11)
Cisco IOS 12.1 (11)
Cisco IOS 12.1 (10a)
Cisco IOS 12.1 (10)E
Cisco IOS 12.1 (10)E
Cisco IOS 12.1 (10)E
Cisco IOS 12.1
Cisco IOS 12.1
Cisco IOS 12.0XW
Cisco IOS 12.0XV
Cisco IOS 12.0XU
Cisco IOS 12.0XS
Cisco IOS 12.0XR
Cisco IOS 12.0XQ
Cisco IOS 12.0XP
Cisco IOS 12.0XN
Cisco IOS 12.0XM
Cisco IOS 12.0XL
Cisco IOS 12.0XK
Cisco IOS 12.0XJ
Cisco IOS 12.0XI
Cisco IOS 12.0XH
Cisco IOS 12.0XG
Cisco IOS 12.0XF
Cisco IOS 12.0XE
Cisco IOS 12.0XD
Cisco IOS 12.0XC
Cisco IOS 12.0XB
Cisco IOS 12.0XA
Cisco IOS 12.0WT
Cisco IOS 12.0WC
Cisco IOS 12.0W5
Cisco IOS 12.0T
Cisco IOS 12.0SX
Cisco IOS 12.0ST
Cisco IOS 12.0SP
Cisco IOS 12.0SL
Cisco IOS 12.0SC
Cisco IOS 12.0S
Cisco IOS 12.0DC
Cisco IOS 12.0DB
Cisco IOS 12.0DA
Cisco IOS 12.0.7(T)
Cisco IOS 12.0.7
Cisco IOS 12.0.6
Cisco IOS 12.0.5
Cisco IOS 12.0.4T
Cisco IOS 12.0.4S
Cisco IOS 12.0.4
Cisco IOS 12.0.3T2
Cisco IOS 12.0.3
Cisco IOS 12.0.2XG
Cisco IOS 12.0.2XF
Cisco IOS 12.0.2XD
Cisco IOS 12.0.2XC
Cisco IOS 12.0.2
Cisco IOS 12.0.1XE
Cisco IOS 12.0.1XB
Cisco IOS 12.0.1XA3
Cisco IOS 12.0.1W
Cisco IOS 12.0.19
Cisco IOS 12.0.1
Cisco IOS 12.0(9)S
Cisco IOS 12.0(8.3)SC
Cisco IOS 12.0(8.0.2)S
Cisco IOS 12.0(8)
Cisco IOS 12.0(7.4)S
Cisco IOS 12.0(7)XK
Cisco IOS 12.0(7)T
Cisco IOS 12.0(7)SC
Cisco IOS 12.0(7)S1
Cisco IOS 12.0(5.1)XP
Cisco IOS 12.0(5)XK
Cisco IOS 12.0(5)T1
Cisco IOS 12.0(5)T
Cisco IOS 12.0(18)S
Cisco IOS 12.0(17)S
Cisco IOS 12.0(17)
Cisco IOS 12.0(16.06)S
Cisco IOS 12.0(16)W5(21)
Cisco IOS 12.0(15)S3
Cisco IOS 12.0(14)W5(20)
Cisco IOS 12.0(14)ST
Cisco IOS 12.0(13)W5(19c)
Cisco IOS 12.0(10)W5(18g)
Cisco IOS 12.0(10)W5
Cisco IOS 12.0 XE
Cisco IOS 12.0 WC
Cisco IOS 12.0 SY
Cisco IOS 12.0 SX
Cisco IOS 12.0 ST
Cisco IOS 12.0 SP
Cisco IOS 12.0 SL
Cisco IOS 12.0 SC
Cisco IOS 12.0 S
Cisco IOS 12.0 (3)
Cisco IOS 12.0 (21)S
Cisco IOS 12.0 (21)S
Cisco IOS 12.0 (21)S
Cisco IOS 12.0 (19)S
Cisco IOS 12.0 (19)S
Cisco IOS 12.0 (19)
Cisco IOS 12.0 (18)S
Cisco IOS 12.0 (17)S
Cisco IOS 12.0
Cisco IOS 11.3XA
Cisco IOS 11.3WA4
Cisco IOS 11.3T
Cisco IOS 11.3NA
Cisco IOS 11.3MA
Cisco IOS 11.3HA
Cisco IOS 11.3DB
Cisco IOS 11.3DA
Cisco IOS 11.3AA
Cisco IOS 11.3.1T
Cisco IOS 11.3.1ED
Cisco IOS 11.3.11b
Cisco IOS 11.3.1
Cisco IOS 11.3(2)XA
Cisco IOS 11.3 (11b)
Cisco IOS 11.3
Cisco IOS 11.2WA3
Cisco IOS 11.2SA
Cisco IOS 11.2P
Cisco IOS 11.2GS
Cisco IOS 11.2F
Cisco IOS 11.2BC
Cisco IOS 11.2.9XA
Cisco IOS 11.2.9P
Cisco IOS 11.2.8SA5
Cisco IOS 11.2.8SA3
Cisco IOS 11.2.8SA1
Cisco IOS 11.2.8P
Cisco IOS 11.2.8
Cisco IOS 11.2.4F1
Cisco IOS 11.2.4F
Cisco IOS 11.2.4
Cisco IOS 11.2.10BC
Cisco IOS 11.2.10
Cisco IOS 11.2(9)XA
Cisco IOS 11.2(4)XAf
Cisco IOS 11.2(4)XA
Cisco IOS 11.2(4)
Cisco IOS 11.2(19)GS0.2
Cisco IOS 11.2(17)
Cisco IOS 11.2 (26a)
Cisco IOS 11.2
Cisco IOS 11.1IA
Cisco IOS 11.1CT
Cisco IOS 11.1CC
Cisco IOS 11.1CA
Cisco IOS 11.1AA
Cisco IOS 11.1.9IA
Cisco IOS 11.1.7CA
Cisco IOS 11.1.7AA
Cisco IOS 11.1.7
Cisco IOS 11.1.17CT
Cisco IOS 11.1.17CC
Cisco IOS 11.1.16IA
Cisco IOS 11.1.16AA
Cisco IOS 11.1.16
Cisco IOS 11.1.15IA
Cisco IOS 11.1.15CA
Cisco IOS 11.1.15AA
Cisco IOS 11.1.15
Cisco IOS 11.1.13IA
Cisco IOS 11.1.13CA
Cisco IOS 11.1.13AA
Cisco IOS 11.1.13
Cisco IOS 11.1(36)CC2
Cisco IOS 11.1 (24a)
Cisco IOS 11.1
具體描述
Cisco IOS是使用廣泛的網絡操作系統。

構建使用非凡協議字段的IPV4包發送給使用CISCO IOS的接口，就會由于標記輸入隊列滿而停止處理通信，這種攻擊不需任何驗證，并且IPV4包處理默認打開。

攻擊者構建使用協議類型為53 (SWIPE), 55 (IP Mobility), 77 (Sun ND), 或103 (PRotocol Independent Multicast - PIM)的包，發送給Cisco IOS設備而停止響應。

不過假如接口配置運行了PIM協議，使用103協議的惡意包將不會對此接口有任何影響。

設備需要手工重新啟動清除輸入隊列。

測試代碼
尚無

解決方案
在路由器上通過訪問控制列表(ACL)過濾從未授權地址直接發往路由器本身地址的流量。
可以參考Cisco提供的下列文檔進行設置:

  http://www.cisco.com/warp/public/707/cisco-sa-20030717-blocked.sHtml#workarounds
  http://www.cisco.com/warp/public/707/racl.html
  http://www.cisco.com/warp/public/707/iacl.html

Cisco提供了一個樣例ACL, 禁止所有協議類型為53,55,77,103的包通過路由器:

    access-list 101 deny 53 any any
    access-list 101 deny 55 any any
    access-list 101 deny 77 any any
    access-list 101 deny 103 any any
    !--- insert any other previously applied ACL entries here
    !--- you must permit other protocols through to allow normal
    !--- traffic -- previously defined permit lists will work
    !--- or you may use the permit ip any any shown here
    access-list 101 permit ip any any

Cisco IOS 12.3不存在此漏洞，用戶可以升級。