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CVE-2017-12240

Quick assessment

Affected
n/a Cisco IOS and IOS XE
Exploitation
Confirmed exploitation in the wild; remediate immediately
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Cisco IOS和IOS XE Software都是美国思科（Cisco）公司为其网络设备开发的操作系统。DHCP relay是其中的一个用于实现在不同子网和物理网段之间处理和转发dhcp信息的功能的组件。 Cisco IOS 12.2版本至15.6版本和Cisco IOS XE Software中的DHCP relay子系统存在缓冲区溢出漏洞。远程攻击者可通过向受影响系统发送特制的DHCP Version 4(DHCPv4)数据包利用该漏洞造成拒绝服务（重新加载）。

AI Predicted 9.8 Difficulty: Easy KEV EPSS 13.77% · P96
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I. Basic Information for CVE-2017-12240

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
The DHCP relay subsystem of Cisco IOS 12.2 through 15.6 and Cisco IOS XE Software contains a vulnerability that could allow an unauthenticated, remote attacker to execute arbitrary code and gain full control of an affected system. The attacker could also cause an affected system to reload, resulting in a denial of service (DoS) condition. The vulnerability is due to a buffer overflow condition in the DHCP relay subsystem of the affected software. An attacker could exploit this vulnerability by sending a crafted DHCP Version 4 (DHCPv4) packet to an affected system. A successful exploit could allow the attacker to execute arbitrary code and gain full control of the affected system or cause the affected system to reload, resulting in a DoS condition. Cisco Bug IDs: CSCsm45390, CSCuw77959.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Cisco IOS和IOS XE Software DHCP relay子系统缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco IOS和IOS XE Software都是美国思科（Cisco）公司为其网络设备开发的操作系统。DHCP relay是其中的一个用于实现在不同子网和物理网段之间处理和转发dhcp信息的功能的组件。 Cisco IOS 12.2版本至15.6版本和Cisco IOS XE Software中的DHCP relay子系统存在缓冲区溢出漏洞。远程攻击者可通过向受影响系统发送特制的DHCP Version 4(DHCPv4)数据包利用该漏洞造成拒绝服务（重新加载）。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

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Affected Products

Vendor Product Affected Versions CPE Subscribe
- Cisco IOS and IOS XE Cisco IOS and IOS XE -

II. Public POCs for CVE-2017-12240

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III. Intelligence Information for CVE-2017-12240

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Vendor Advisories for CVE-2017-12240 (3)

Other References for CVE-2017-12240 (2)

Same Patch Batch · n/a · 2017-09-28 · 35 CVEs total

CVE-2017-14861 Exiv2 资源管理错误漏洞
CVE-2017-12235 Cisco IOS 输入验证漏洞
CVE-2017-12236 Cisco IOS XE 授权问题漏洞
CVE-2017-12237 Cisco IOS和IOS XE Internet Key Exchange模块资源管理错误漏洞
CVE-2017-12238 Cisco Catalyst 6800 Series Switches 资源管理错误漏洞
CVE-2017-12239 Cisco ASR 1000 Series Aggregation Services Routers和Cisco cBR-8 Converged Broadband Routers
CVE-2017-14857 Exiv2 安全漏洞
CVE-2017-14858 Exiv2 缓冲区错误漏洞
CVE-2017-14860 Exiv2 缓冲区错误漏洞
CVE-2017-12234 Cisco IOS 输入验证漏洞
CVE-2017-14863 Exiv2 缓冲区错误漏洞
CVE-2017-14865 Exiv2 缓冲区错误漏洞
CVE-2017-14866 Exiv2 缓冲区错误漏洞
CVE-2017-14849 Joyent Node.js 安全漏洞
CVE-2017-14859 Exiv2 缓冲区错误漏洞
CVE-2017-14862 Exiv2 缓冲区错误漏洞
CVE-2017-14864 Exiv2 缓冲区错误漏洞
CVE-2017-12222 Cisco Catalyst 3650和3850交换机IOS XE Software 资源管理错误漏洞
CVE-2017-7553 App Studio 代码问题漏洞
CVE-2017-7554 RHMAP App Studio组件安全漏洞

Showing top 20 of 35 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Cisco IOS and IOS XE
Same vendor: n/a
Same weakness: CWE-20

V. Comments for CVE-2017-12240

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