CVE-2017-6736— Cisco IOS和IOS XE Simple Network Management Protocol子系统缓冲区错误漏洞
一分钟漏洞结论
影响对象
Cisco IOS
利用判断
已确认在野利用，应立即处置
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。
Cisco IOS和IOS XE都是美国思科（Cisco）公司为其网络设备开发的操作系统。Simple Network Management Protocol（SNMP）subsystem是其中的一个用于网络设备管理信息交换的简单网络管理子系统。 Cisco IOS 12.0版本至12.4版本、15.0版本至15.6版本和IOS XE 2.2版本至3.17版本中的SNMP子系统中存在安全漏洞。远程攻击者可通过向受影响系统发送特制的SNMP数据包利用该漏洞在受影响的系统上执行任意代码或造成系统重启。以下版本
公开利用映射 1
ExploitDB · 1
EDB-43450 [remote]
已观察到在野利用
cisa_kev · confirmed
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一、 漏洞 CVE-2017-6736 基础信息
漏洞信息
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Vulnerability Title
N/A
来源: CVE Program / CVE List V5
Vulnerability Description
The Simple Network Management Protocol (SNMP) subsystem of Cisco IOS and IOS XE Software contains multiple vulnerabilities that could allow an authenticated, remote attacker to remotely execute code on an affected system or cause an affected system to reload. An attacker could exploit these vulnerabilities by sending a crafted SNMP packet to an affected system via IPv4 or IPv6. Only traffic directed to an affected system can be used to exploit these vulnerabilities.
The vulnerabilities are due to a buffer overflow condition in the SNMP subsystem of the affected software. The vulnerabilities affect all versions of SNMP - Versions 1, 2c, and 3. To exploit these vulnerabilities via SNMP Version 2c or earlier, the attacker must know the SNMP read-only community string for the affected system. To exploit these vulnerabilities via SNMP Version 3, the attacker must have user credentials for the affected system. A successful exploit could allow the attacker to execute arbitrary code and obtain full control of the affected system or cause the affected system to reload.
Customers are advised to apply the workaround as contained in the Workarounds section below. Fixed software information is available via the Cisco IOS Software Checker. All devices that have enabled SNMP and have not explicitly excluded the affected MIBs or OIDs should be considered vulnerable.
There are workarounds that address these vulnerabilities.
来源: CVE Program / CVE List V5
CVSS Information
N/A
来源: CVE Program / CVE List V5
Vulnerability Type
内存缓冲区边界内操作的限制不恰当
来源: CVE Program / CVE List V5
Vulnerability Title
Cisco IOS和IOS XE Simple Network Management Protocol子系统缓冲区错误漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
Cisco IOS和IOS XE都是美国思科（Cisco）公司为其网络设备开发的操作系统。Simple Network Management Protocol（SNMP）subsystem是其中的一个用于网络设备管理信息交换的简单网络管理子系统。 Cisco IOS 12.0版本至12.4版本、15.0版本至15.6版本和IOS XE 2.2版本至3.17版本中的SNMP子系统中存在安全漏洞。远程攻击者可通过向受影响系统发送特制的SNMP数据包利用该漏洞在受影响的系统上执行任意代码或造成系统重启。以下版本
来源: 中国国家信息安全漏洞库 CNNVD
CVSS Information
N/A
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Type
N/A
来源: 中国国家信息安全漏洞库 CNNVD
受影响产品
| 厂商 | 产品 | 影响版本 | CPE | 订阅 |
|---|---|---|---|---|
| Cisco | IOS | 12.1(3a)XI9 | - |
|
| IntelliShield | Universal Product | N/A | - |
|
二、漏洞 CVE-2017-6736 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|---|---|---|
| 1 | A POC chain exploit using the recent Cisco SMP exploit (CVE-2017-6736) to chain into Spectre (CVE-2017-5753 and CVE-2017-5715) | https://github.com/GarnetSunset/CiscoSpectreTakeover | POC详情 |
| 2 | Cisco iOS SNMP Overflow Exploit Toolkit (CVE-2017-6736) | https://github.com/GarnetSunset/CiscoIOSSNMPToolkit | POC详情 |
| 3 | A POC chain exploit using the recent Cisco SMP exploit (CVE-2017-6736) to chain into Spectre (CVE-2017-5753 and CVE-2017-5715) | https://github.com/garnetsunset/CiscoSpectreTakeover | POC详情 |
| 4 | Cisco iOS SNMP Overflow Exploit Toolkit (CVE-2017-6736) | https://github.com/garnetsunset/CiscoIOSSNMPToolkit | POC详情 |
| 5 | A POC chain exploit using the recent Cisco SMP exploit (CVE-2017-6736) to chain into Spectre (CVE-2017-5753 and CVE-2017-5715) | https://github.com/plyrthn/CiscoSpectreTakeover | POC详情 |
| 6 | Cisco iOS SNMP Overflow Exploit Toolkit (CVE-2017-6736) | https://github.com/plyrthn/CiscoIOSSNMPToolkit | POC详情 |
| 7 | Cisco iOS SNMP Overflow Exploit Toolkit (CVE-2017-6736) | https://github.com/msztankowski/CiscoIOSSNMPToolkit | POC详情 |
AI 生成 POC
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CVE-2017-6736 厂商安全公告 (4)
CVE-2017-6736 公开利用代码 (1)
CVE-2017-6736 其他参考 (1)
-
https://github.com/artkond/cisco-snmp-rce x_refsource_MISC
同批安全公告 · Cisco · 2017-07-17 · 共 8 条
| CVE-2017-6737 | Cisco IOS和IOS XE Simple Network Management Protocol子系统缓冲区错误漏洞 | |
| CVE-2017-6738 | Cisco IOS和IOS XE Simple Network Management Protocol子系统缓冲区错误漏洞 | |
| CVE-2017-6740 | Cisco IOS和IOS XE Simple Network Management Protocol子系统缓冲区错误漏洞 | |
| CVE-2017-6741 | Cisco IOS和IOS XE Simple Network Management Protocol子系统缓冲区错误漏洞 | |
| CVE-2017-6742 | Cisco IOS和IOS XE Simple Network Management Protocol子系统缓冲区错误漏洞 | |
| CVE-2017-6743 | Cisco IOS和IOS XE Simple Network Management Protocol子系统缓冲区错误漏洞 | |
| CVE-2017-6744 | Cisco IOS和IOS XE Simple Network Management Protocol子系统缓冲区错误漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2017-6736
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