2017年3月17日美國時間下午4點，Cisco官方網(wǎng)站發(fā)布Cisco IOS&IOS XE Software 集群管理協(xié)議(Cluster Management Protocol)存在遠程代碼執(zhí)行漏洞。該漏洞目前為0day漏洞，危害等級高。該漏洞允許未授權(quán)訪問,遠程攻擊者可以重啟設(shè)備和遠程執(zhí)行代碼提升權(quán)限。

Cisco IOS是Cisco的網(wǎng)際操作系統(tǒng)；是一個為網(wǎng)際互連優(yōu)化的復雜的操作系統(tǒng)；也是一個與硬件分離的軟件體系結(jié)構(gòu)，隨網(wǎng)絡(luò)技術(shù)的不斷發(fā)展，可動態(tài)地升級以適應(yīng)不斷變化的技術(shù)（軟件）。

根據(jù)FOFA系統(tǒng)顯示，目前全球共有超過43萬個對外可以訪問（僅為全球分布情況，非漏洞影響情況）。其中美國超過3分之一；中國使用量位列第二。該漏洞受影響設(shè)備達到319種型號。

Cisco IOS 全球分布（僅為全球分布情況，非漏洞影響情況）

Cisco IOS 全球分布 TOP 10（僅為全球分布情況，非漏洞影響情況）

Cisco IOS 中國分布（僅為全球分布情況，非漏洞影響情況）

Cisco IOS 中國行政區(qū)域分布 TOP 10（僅為全球分布情況，非漏洞影響情況）

漏洞原理與危害

集群管理協(xié)議（Cluster Management Protocol）是集群成員之間內(nèi)部使用TELNET來進行信號和命令控制的協(xié)議。該漏洞是由兩個因素構(gòu)成:

1. 未能限制使用CMP-specific Telnet選項只對內(nèi)部,而是接受 Telnet連接到任何一個受影響的設(shè)備。

2. CMP-specific Telnet的錯誤處理選項

CMP-specific Telnet 選項是默認的，即使沒有出現(xiàn)在設(shè)置的集群設(shè)置命令中。

攻擊者可以利用此漏洞通過發(fā)送畸形CMP-specific Telnet選項，向受影響設(shè)備建立一個Telnet會話。漏洞可能允許遠程攻擊者執(zhí)行任意代碼,提升權(quán)限，完全控制受影響的設(shè)備或?qū)е略O(shè)備重啟。

影響范圍

暫無

漏洞POC

暫無

CVE編號

CVE-2017-3881

修復建議

用戶可通過登錄進入Cisco IOS系統(tǒng)，輸入Show Version檢查對應(yīng)版本是否受影響。大致內(nèi)容如下：

另外也可以打開官方網(wǎng)站進行版本檢測，地址

修復方法

1. 修改配置，設(shè)置Telnet允許指定IP可以連接或者不允許Telnet連接；

2. 目前官方還未發(fā)布補丁，請時刻關(guān)注Cisco官方發(fā)布的補丁和最新更新。

漏洞影響

目前受該漏洞影響設(shè)備的版本如下：

Cisco Catalyst 2350-48TD-S Switch
Cisco Catalyst 2350-48TD-SD Switch
Cisco Catalyst 2360-48TD-S Switch
Cisco Catalyst 2918-24TC-C Switch
Cisco Catalyst 2918-24TT-C Switch
Cisco Catalyst 2918-48TC-C Switch
Cisco Catalyst 2918-48TT-C Switch
Cisco Catalyst 2928-24TC-C Switch
Cisco Catalyst 2960-24-S Switch
Cisco Catalyst 2960-24LC-S Switch
Cisco Catalyst 2960-24LT-L Switch
Cisco Catalyst 2960-24PC-L Switch
Cisco Catalyst 2960-24PC-S Switch
Cisco Catalyst 2960-24TC-L Switch
Cisco Catalyst 2960-24TC-S Switch
Cisco Catalyst 2960-24TT-L Switch
Cisco Catalyst 2960-48PST-L Switch
Cisco Catalyst 2960-48PST-S Switch
Cisco Catalyst 2960-48TC-L Switch
Cisco Catalyst 2960-48TC-S Switch
Cisco Catalyst 2960-48TT-L Switch
Cisco Catalyst 2960-48TT-S Switch
Cisco Catalyst 2960-8TC-L Compact Switch
Cisco Catalyst 2960-8TC-S Compact Switch
Cisco Catalyst 2960-Plus 24LC-L Switch
Cisco Catalyst 2960-Plus 24LC-S Switch
Cisco Catalyst 2960-Plus 24PC-L Switch
Cisco Catalyst 2960-Plus 24PC-S Switch
Cisco Catalyst 2960-Plus 24TC-L Switch
Cisco Catalyst 2960-Plus 24TC-S Switch
Cisco Catalyst 2960-Plus 48PST-L Switch
Cisco Catalyst 2960-Plus 48PST-S Switch
Cisco Catalyst 2960-Plus 48TC-L Switch
Cisco Catalyst 2960-Plus 48TC-S Switch
Cisco Catalyst 2960C-12PC-L Switch
Cisco Catalyst 2960C-8PC-L Switch
Cisco Catalyst 2960C-8TC-L Switch
Cisco Catalyst 2960C-8TC-S Switch
Cisco Catalyst 2960CG-8TC-L Compact Switch
Cisco Catalyst 2960CPD-8PT-L Switch
Cisco Catalyst 2960CPD-8TT-L Switch
Cisco Catalyst 2960CX-8PC-L Switch
Cisco Catalyst 2960CX-8TC-L Switch
Cisco Catalyst 2960G-24TC-L Switch
Cisco Catalyst 2960G-48TC-L Switch
Cisco Catalyst 2960G-8TC-L Compact Switch
Cisco Catalyst 2960L-16PS-LL Switch
Cisco Catalyst 2960L-16TS-LL Switch
Cisco Catalyst 2960L-24PS-LL Switch
Cisco Catalyst 2960L-24TS-LL Switch
Cisco Catalyst 2960L-48PS-LL Switch
Cisco Catalyst 2960L-48TS-LL Switch
Cisco Catalyst 2960L-8PS-LL Switch
Cisco Catalyst 2960L-8TS-LL Switch
Cisco Catalyst 2960PD-8TT-L Compact Switch
Cisco Catalyst 2960S-24PD-L Switch
Cisco Catalyst 2960S-24PS-L Switch
Cisco Catalyst 2960S-24TD-L Switch
Cisco Catalyst 2960S-24TS-L Switch
Cisco Catalyst 2960S-24TS-S Switch
Cisco Catalyst 2960S-48FPD-L Switch
Cisco Catalyst 2960S-48FPS-L Switch
Cisco Catalyst 2960S-48LPD-L Switch
Cisco Catalyst 2960S-48LPS-L Switch
Cisco Catalyst 2960S-48TD-L Switch
Cisco Catalyst 2960S-48TS-L Switch
Cisco Catalyst 2960S-48TS-S Switch
Cisco Catalyst 2960S-F24PS-L Switch
Cisco Catalyst 2960S-F24TS-L Switch
Cisco Catalyst 2960S-F24TS-S Switch
Cisco Catalyst 2960S-F48FPS-L Switch
Cisco Catalyst 2960S-F48LPS-L Switch
Cisco Catalyst 2960S-F48TS-L Switch
Cisco Catalyst 2960S-F48TS-S Switch
Cisco Catalyst 2960X-24PD-L Switch
Cisco Catalyst 2960X-24PS-L Switch
Cisco Catalyst 2960X-24PSQ-L Cool Switch
Cisco Catalyst 2960X-24TD-L Switch
Cisco Catalyst 2960X-24TS-L Switch
Cisco Catalyst 2960X-24TS-LL Switch
Cisco Catalyst 2960X-48FPD-L Switch
Cisco Catalyst 2960X-48FPS-L Switch
Cisco Catalyst 2960X-48LPD-L Switch
Cisco Catalyst 2960X-48LPS-L Switch
Cisco Catalyst 2960X-48TD-L Switch
Cisco Catalyst 2960X-48TS-L Switch
Cisco Catalyst 2960X-48TS-LL Switch
Cisco Catalyst 2960XR-24PD-I Switch
Cisco Catalyst 2960XR-24PD-L Switch
Cisco Catalyst 2960XR-24PS-I Switch
Cisco Catalyst 2960XR-24PS-L Switch
Cisco Catalyst 2960XR-24TD-I Switch
Cisco Catalyst 2960XR-24TD-L Switch
Cisco Catalyst 2960XR-24TS-I Switch
Cisco Catalyst 2960XR-24TS-L Switch
Cisco Catalyst 2960XR-48FPD-I Switch
Cisco Catalyst 2960XR-48FPD-L Switch
Cisco Catalyst 2960XR-48FPS-I Switch
Cisco Catalyst 2960XR-48FPS-L Switch
Cisco Catalyst 2960XR-48LPD-I Switch
Cisco Catalyst 2960XR-48LPD-L Switch
Cisco Catalyst 2960XR-48LPS-I Switch
Cisco Catalyst 2960XR-48LPS-L Switch
Cisco Catalyst 2960XR-48TD-I Switch
Cisco Catalyst 2960XR-48TD-L Switch
Cisco Catalyst 2960XR-48TS-I Switch
Cisco Catalyst 2960XR-48TS-L Switch
Cisco Catalyst 2970G-24T Switch
Cisco Catalyst 2970G-24TS Switch
Cisco Catalyst 2975 Switch
Cisco Catalyst 3550 12G Switch
Cisco Catalyst 3550 12T Switch
Cisco Catalyst 3550 24 DC SMI Switch
Cisco Catalyst 3550 24 EMI Switch
Cisco Catalyst 3550 24 FX SMI Switch
Cisco Catalyst 3550 24 PWR Switch
Cisco Catalyst 3550 24 SMI Switch
Cisco Catalyst 3550 48 EMI Switch
Cisco Catalyst 3550 48 SMI Switch
Cisco Catalyst 3560-12PC-S Compact Switch
Cisco Catalyst 3560-24PS Switch
Cisco Catalyst 3560-24TS Switch
Cisco Catalyst 3560-48PS Switch
Cisco Catalyst 3560-48TS Switch
Cisco Catalyst 3560-8PC Compact Switch
Cisco Catalyst 3560C-12PC-S Switch
Cisco Catalyst 3560C-8PC-S Switch
Cisco Catalyst 3560CG-8PC-S Compact Switch
Cisco Catalyst 3560CG-8TC-S Compact Switch
Cisco Catalyst 3560CPD-8PT-S Compact Switch
Cisco Catalyst 3560CX-12PC-S Switch
Cisco Catalyst 3560CX-12PD-S Switch
Cisco Catalyst 3560CX-12TC-S Switch
Cisco Catalyst 3560CX-8PC-S Switch
Cisco Catalyst 3560CX-8PT-S Switch
Cisco Catalyst 3560CX-8TC-S Switch
Cisco Catalyst 3560CX-8XPD-S Switch
Cisco Catalyst 3560E-12D-E Switch
Cisco Catalyst 3560E-12D-S Switch
Cisco Catalyst 3560E-12SD-E Switch
Cisco Catalyst 3560E-12SD-S Switch
Cisco Catalyst 3560E-24PD-E Switch
Cisco Catalyst 3560E-24PD-S Switch
Cisco Catalyst 3560E-24TD-E Switch
Cisco Catalyst 3560E-24TD-S Switch
Cisco Catalyst 3560E-48PD-E Switch
Cisco Catalyst 3560E-48PD-EF Switch
Cisco Catalyst 3560E-48PD-S Switch
Cisco Catalyst 3560E-48PD-SF Switch
Cisco Catalyst 3560E-48TD-E Switch
Cisco Catalyst 3560E-48TD-S Switch
Cisco Catalyst 3560G-24PS Switch
Cisco Catalyst 3560G-24TS Switch
Cisco Catalyst 3560G-48PS Switch
Cisco Catalyst 3560G-48TS Switch
Cisco Catalyst 3560V2-24DC Switch
Cisco Catalyst 3560V2-24PS Switch
Cisco Catalyst 3560V2-24TS Switch
Cisco Catalyst 3560V2-48PS Switch
Cisco Catalyst 3560V2-48TS Switch
Cisco Catalyst 3560X-24P-E Switch
Cisco Catalyst 3560X-24P-L Switch
Cisco Catalyst 3560X-24P-S Switch
Cisco Catalyst 3560X-24T-E Switch
Cisco Catalyst 3560X-24T-L Switch
Cisco Catalyst 3560X-24T-S Switch
Cisco Catalyst 3560X-24U-E Switch
Cisco Catalyst 3560X-24U-L Switch
Cisco Catalyst 3560X-24U-S Switch
Cisco Catalyst 3560X-48P-E Switch
Cisco Catalyst 3560X-48P-L Switch
Cisco Catalyst 3560X-48P-S Switch
Cisco Catalyst 3560X-48PF-E Switch
Cisco Catalyst 3560X-48PF-L Switch
Cisco Catalyst 3560X-48PF-S Switch
Cisco Catalyst 3560X-48T-E Switch
Cisco Catalyst 3560X-48T-L Switch
Cisco Catalyst 3560X-48T-S Switch
Cisco Catalyst 3560X-48U-E Switch
Cisco Catalyst 3560X-48U-L Switch
Cisco Catalyst 3560X-48U-S Switch
Cisco Catalyst 3750 Metro 24-AC Switch
Cisco Catalyst 3750 Metro 24-DC Switch
Cisco Catalyst 3750-24FS Switch
Cisco Catalyst 3750-24PS Switch
Cisco Catalyst 3750-24TS Switch
Cisco Catalyst 3750-48PS Switch
Cisco Catalyst 3750-48TS Switch
Cisco Catalyst 3750E-24PD-E Switch
Cisco Catalyst 3750E-24PD-S Switch
Cisco Catalyst 3750E-24TD-E Switch
Cisco Catalyst 3750E-24TD-S Switch
Cisco Catalyst 3750E-48PD-E Switch
Cisco Catalyst 3750E-48PD-EF Switch
Cisco Catalyst 3750E-48PD-S Switch
Cisco Catalyst 3750E-48PD-SF Switch
Cisco Catalyst 3750E-48TD-E Switch
Cisco Catalyst 3750E-48TD-S Switch
Cisco Catalyst 3750G-12S Switch
Cisco Catalyst 3750G-12S-SD Switch
Cisco Catalyst 3750G-16TD Switch
Cisco Catalyst 3750G-24PS Switch
Cisco Catalyst 3750G-24T Switch
Cisco Catalyst 3750G-24TS Switch
Cisco Catalyst 3750G-24TS-1U Switch
Cisco Catalyst 3750G-48PS Switch
Cisco Catalyst 3750G-48TS Switch
Cisco Catalyst 3750V2-24FS Switch
Cisco Catalyst 3750V2-24PS Switch
Cisco Catalyst 3750V2-24TS Switch
Cisco Catalyst 3750V2-48PS Switch
Cisco Catalyst 3750V2-48TS Switch
Cisco Catalyst 3750X-12S-E Switch
Cisco Catalyst 3750X-12S-S Switch
Cisco Catalyst 3750X-24P-E Switch
Cisco Catalyst 3750X-24P-L Switch
Cisco Catalyst 3750X-24P-S Switch
Cisco Catalyst 3750X-24S-E Switch
Cisco Catalyst 3750X-24S-S Switch
Cisco Catalyst 3750X-24T-E Switch
Cisco Catalyst 3750X-24T-L Switch
Cisco Catalyst 3750X-24T-S Switch
Cisco Catalyst 3750X-24U-E Switch
Cisco Catalyst 3750X-24U-L Switch
Cisco Catalyst 3750X-24U-S Switch
Cisco Catalyst 3750X-48P-E Switch
Cisco Catalyst 3750X-48P-L Switch
Cisco Catalyst 3750X-48P-S Switch
Cisco Catalyst 3750X-48PF-E Switch
Cisco Catalyst 3750X-48PF-L Switch
Cisco Catalyst 3750X-48PF-S Switch
Cisco Catalyst 3750X-48T-E Switch
Cisco Catalyst 3750X-48T-L Switch
Cisco Catalyst 3750X-48T-S Switch
Cisco Catalyst 3750X-48U-E Switch
Cisco Catalyst 3750X-48U-L Switch
Cisco Catalyst 3750X-48U-S Switch
Cisco Catalyst 4000 Supervisor Engine I
Cisco Catalyst 4000/4500 Supervisor Engine IV
Cisco Catalyst 4000/4500 Supervisor Engine V
Cisco Catalyst 4500 Series Supervisor Engine II-Plus
Cisco Catalyst 4500 Series Supervisor Engine II-Plus-TS
Cisco Catalyst 4500 Series Supervisor Engine V-10GE
Cisco Catalyst 4500 Series Supervisor II-Plus-10GE
Cisco Catalyst 4500 Supervisor Engine 6-E
Cisco Catalyst 4500 Supervisor Engine 6L-E
Cisco Catalyst 4900M Switch
Cisco Catalyst 4928 10 Gigabit Ethernet Switch
Cisco Catalyst 4948 10 Gigabit Ethernet Switch
Cisco Catalyst 4948 Switch
Cisco Catalyst 4948E Ethernet Switch
Cisco Catalyst 4948E-F Ethernet Switch
Cisco Catalyst Blade Switch 3020 for HP
Cisco Catalyst Blade Switch 3030 for Dell
Cisco Catalyst Blade Switch 3032 for Dell M1000E
Cisco Catalyst Blade Switch 3040 for FSC
Cisco Catalyst Blade Switch 3120 for HP
Cisco Catalyst Blade Switch 3120X for HP
Cisco Catalyst Blade Switch 3130 for Dell M1000E
Cisco Catalyst C2928-24LT-C Switch
Cisco Catalyst C2928-48TC-C Switch
Cisco Catalyst Switch Module 3012 for IBM BladeCenter
Cisco Catalyst Switch Module 3110 for IBM BladeCenter
Cisco Catalyst Switch Module 3110X for IBM BladeCenter
Cisco Embedded Service 2020 24TC CON B Switch
Cisco Embedded Service 2020 24TC CON Switch
Cisco Embedded Service 2020 24TC NCP B Switch
Cisco Embedded Service 2020 24TC NCP Switch
Cisco Embedded Service 2020 CON B Switch
Cisco Embedded Service 2020 CON Switch
Cisco Embedded Service 2020 NCP B Switch
Cisco Embedded Service 2020 NCP Switch
Cisco Enhanced Layer 2 EtherSwitch Service Module
Cisco Enhanced Layer 2/3 EtherSwitch Service Module
Cisco Gigabit Ethernet Switch Module (CGESM) for HP
Cisco IE 2000-16PTC-G Industrial Ethernet Switch
Cisco IE 2000-16T67 Industrial Ethernet Switch
Cisco IE 2000-16T67P Industrial Ethernet Switch
Cisco IE 2000-16TC Industrial Ethernet Switch
Cisco IE 2000-16TC-G Industrial Ethernet Switch
Cisco IE 2000-16TC-G-E Industrial Ethernet Switch
Cisco IE 2000-16TC-G-N Industrial Ethernet Switch
Cisco IE 2000-16TC-G-X Industrial Ethernet Switch
Cisco IE 2000-24T67 Industrial Ethernet Switch
Cisco IE 2000-4S-TS-G Industrial Ethernet Switch
Cisco IE 2000-4T Industrial Ethernet Switch
Cisco IE 2000-4T-G Industrial Ethernet Switch
Cisco IE 2000-4TS Industrial Ethernet Switch
Cisco IE 2000-4TS-G Industrial Ethernet Switch
Cisco IE 2000-8T67 Industrial Ethernet Switch
Cisco IE 2000-8T67P Industrial Ethernet Switch
Cisco IE 2000-8TC Industrial Ethernet Switch
Cisco IE 2000-8TC-G Industrial Ethernet Switch
Cisco IE 2000-8TC-G-E Industrial Ethernet Switch
Cisco IE 2000-8TC-G-N Industrial Ethernet Switch
Cisco IE 3000-4TC Industrial Ethernet Switch
Cisco IE 3000-8TC Industrial Ethernet Switch
Cisco IE-3010-16S-8PC Industrial Ethernet Switch
Cisco IE-3010-24TC Industrial Ethernet Switch
Cisco IE-4000-16GT4G-E Industrial Ethernet Switch
Cisco IE-4000-16T4G-E Industrial Ethernet Switch
Cisco IE-4000-4GC4GP4G-E Industrial Ethernet Switch
Cisco IE-4000-4GS8GP4G-E Industrial Ethernet Switch
Cisco IE-4000-4S8P4G-E Industrial Ethernet Switch
Cisco IE-4000-4T4P4G-E Industrial Ethernet Switch
Cisco IE-4000-4TC4G-E Industrial Ethernet Switch
Cisco IE-4000-8GS4G-E Industrial Ethernet Switch
Cisco IE-4000-8GT4G-E Industrial Ethernet Switch
Cisco IE-4000-8GT8GP4G-E Industrial Ethernet Switch
Cisco IE-4000-8S4G-E Industrial Ethernet Switch
Cisco IE-4000-8T4G-E Industrial Ethernet Switch
Cisco IE-4010-16S12P Industrial Ethernet Switch
Cisco IE-4010-4S24P Industrial Ethernet Switch
Cisco IE-5000-12S12P-10G Industrial Ethernet Switch
Cisco IE-5000-16S12P Industrial Ethernet Switch
Cisco ME 4924-10GE Switch
Cisco RF Gateway 10
Cisco SM-X Layer 2/3 EtherSwitch Service Module