CVE编号
CVE-2016-7431利用情况
暂无补丁情况
官方补丁披露时间
2017-01-14漏洞描述
Network Time Protocol（NTP）是用于使计算机时间同步化的一种协议，可使计算机对其服务器或时钟源（如石英钟，GPS等等)做同步化。把计算机的时钟同步到世界协调时，以确保网络中的数据交互能够顺利进行。NTPD（Network Time Protocol daemon）是一个操作系统守护进程，使用网络时间协议（NTP）与时间服务器的系统时间保持同步，主要用于主机与主机之间的时间同步。ntpd存在零起源时间戳绕过漏洞。在ntp-4.2.8p6修复编号为NTP Bug 2945的零值原始时间戳的bug后，引入了对零值原始时间戳检验不当的问题，可导致拒绝服务。
解决建议
官方已经发布了版本更新，建议用户升级到最新版本，下载链接如下：http://support.ntp.org/bin/view/Main/SoftwareDownloads
参考链接 |
|
|---|---|
| http://lists.opensuse.org/opensuse-updates/2016-12/msg00153.html | |
| http://nwtime.org/ntp428p9_release/ | |
| http://packetstormsecurity.com/files/140240/FreeBSD-Security-Advisory-FreeBSD... | |
| http://support.ntp.org/bin/view/Main/NtpBug3102 | |
| http://support.ntp.org/bin/view/Main/SecurityNotice#Recent_Vulnerabilities | |
| http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20171129-01-ntpd-en | |
| http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html | |
| http://www.securityfocus.com/archive/1/539955/100/0/threaded | |
| http://www.securityfocus.com/archive/1/540254/100/0/threaded | |
| http://www.securityfocus.com/archive/1/archive/1/539955/100/0/threaded | |
| http://www.securityfocus.com/archive/1/archive/1/540254/100/0/threaded | |
| http://www.securityfocus.com/bid/94454 | |
| http://www.securitytracker.com/id/1037354 | |
| http://www.ubuntu.com/usn/USN-3349-1 | |
| https://bto.bluecoat.com/security-advisory/sa139 | |
| https://cert-portal.siemens.com/productcert/pdf/ssa-211752.pdf | |
| https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr... | |
| https://security.FreeBSD.org/advisories/FreeBSD-SA-16:39.ntp.asc | |
| https://support.hpe.com/hpsc/doc/public/display?docLocale=en&docId=emr_na-hpe... | |
| https://support.hpe.com/hpsc/doc/public/display?docLocale=en&docId=emr_na-hpe... | |
| https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-... | |
| https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-... | |
| https://us-cert.cisa.gov/ics/advisories/icsa-21-159-11 | |
| https://www.broadcom.com/support/fibre-channel-networking/security-advisories... | |
| https://www.kb.cert.org/vuls/id/633847 |
受影响软件情况
| # | 类型 | 厂商 | 产品 | 版本 | 影响面 | ||||
| 1 | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 运行在以下环境 | |||||||||
| 应用 | ntp | ntp | 4.2.8 | - | |||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_Leap_42.1 | ntp | * |
Up to (excluding) 4.2.8p9-27.1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_Leap_42.1 | ntp-doc | * |
Up to (excluding) 4.2.8p9-27.1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_Leap_42.2 | ntp | * |
Up to (excluding) 4.2.8p9-27.1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_Leap_42.2 | ntp-doc | * |
Up to (excluding) 4.2.8p9-27.1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | suse_11_SP4 | ntp | * |
Up to (excluding) 4.2.8p9-57.2 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | suse_11_SP4 | ntp-doc | * |
Up to (excluding) 4.2.8p9-57.2 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | suse_12_SP1 | ntp | * |
Up to (excluding) 4.2.8p9-55.1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | suse_12_SP1 | ntp-doc | * |
Up to (excluding) 4.2.8p9-55.1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | suse_12_SP2 | ntp | * |
Up to (excluding) 4.2.8p9-55.1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | suse_12_SP2 | ntp-doc | * |
Up to (excluding) 4.2.8p9-55.1 |
|||||
- 攻击路径 远程
- 攻击复杂度 复杂
- 权限要求 无需权限
- 影响范围 有限影响
- EXP成熟度 未验证
- 补丁情况 官方补丁
- 数据保密性 无影响
- 数据完整性 无影响
- 服务器危害 无影响
- 全网数量 100
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