CVE-2017-7494— Samba 安全漏洞
一分钟漏洞结论
影响对象
Samba samba
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。
Samba是Samba团队开发的一套可使UNIX系列的操作系统与微软Windows操作系统的SMB/CIFS网络协议做连结的自由软件。该软件支持共享打印机、互相传输资料文件等。 Samba中存在远程代码执行漏洞。远程攻击者可利用该漏洞使服务器加载和执行上传的共享库。以下版本受到影响：Samba 4.6.4之前的版本，4.5.10之前的版本，4.4.14之前的版本。
公开利用映射 3
Metasploit · 1
is_known_pipename.rb [exploit]
已观察到在野利用
github_trending · low
cisa_kev · confirmed
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一、 漏洞 CVE-2017-7494 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
Samba since version 3.5.0 and before 4.6.4, 4.5.10 and 4.4.14 is vulnerable to remote code execution vulnerability, allowing a malicious client to upload a shared library to a writable share, and then cause the server to load and execute it.
来源: CVE Program / CVE List V5
CVSS Information
N/A
来源: CVE Program / CVE List V5
Vulnerability Type
N/A
来源: CVE Program / CVE List V5
Vulnerability Title
Samba 安全漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
Samba是Samba团队开发的一套可使UNIX系列的操作系统与微软Windows操作系统的SMB/CIFS网络协议做连结的自由软件。该软件支持共享打印机、互相传输资料文件等。 Samba中存在远程代码执行漏洞。远程攻击者可利用该漏洞使服务器加载和执行上传的共享库。以下版本受到影响：Samba 4.6.4之前的版本，4.5.10之前的版本，4.4.14之前的版本。
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
二、漏洞 CVE-2017-7494 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|---|---|---|
| 1 | Proof-of-Concept exploit for CVE-2017-7494(Samba RCE from a writable share) | https://github.com/betab0t/cve-2017-7494 | POC详情 |
| 2 | None | https://github.com/homjxi0e/CVE-2017-7494 | POC详情 |
| 3 | SambaCry exploit and vulnerable container (CVE-2017-7494) | https://github.com/opsxcq/exploit-CVE-2017-7494 | POC详情 |
| 4 | CVE-2017-7494 - Detection Scripts | https://github.com/Waffles-2/SambaCry | POC详情 |
| 5 | It is a simple script to exploit RCE for Samba (CVE-2017-7494 ). | https://github.com/brianwrf/SambaHunter | POC详情 |
| 6 | Remote root exploit for the SAMBA CVE-2017-7494 vulnerability | https://github.com/joxeankoret/CVE-2017-7494 | POC详情 |
| 7 | 搭建漏洞利用测试环境 | https://github.com/Zer0d0y/Samba-CVE-2017-7494 | POC详情 |
| 8 | CVE-2017-7494 C poc | https://github.com/incredible1yu/CVE-2017-7494 | POC详情 |
| 9 | cve-2017-7494 | https://github.com/cved-sources/cve-2017-7494 | POC详情 |
| 10 | samba 4.5.9 | https://github.com/john-80/cve-2017-7494 | POC详情 |
| 11 | A remote code execution flaw was found in Samba. A malicious authenticated samba client, having write access to the samba share, could use this flaw to execute arbitrary code as root. | https://github.com/Hansindu-M/CVE-2017-7494_IT19115344 | POC详情 |
| 12 | CVE-2017-7494 python exploit | https://github.com/0xm4ud/noSAMBAnoCRY-CVE-2017-7494 | POC详情 |
| 13 | Exploit CVE-2017-7494 for Net Security course final Assignment. This would reveal the vulnerability of services that run in administrative priority on Linux. | https://github.com/I-Rinka/BIT-EternalBlue-for-macOS_Linux | POC详情 |
| 14 | None | https://github.com/yinyinmeimei/CVE-2017-7494-payload | POC详情 |
| 15 | According to researchers with Rapid7, over 110,000 devices appear on internet, which run stable Samba versions, while 92,500 seem to run unstable Samba versions, for which there is no fix. The newest Samba models, including the models 4.6.x before 4.6.4, 4.5.x before 4.5.10 and 3.5.0 before 4.4.13, was impacted by this error. May 24, 2017, Samba released version 4.6.4, which fixes a serious remote code execution vulnerability, vulnerability number CVE-2017-7494, which affected Samba 3.5.0 onwards. Vulnerability number: CVE-2017-7494 Severity Rating: High Affected software: • Samba Version < 4.6.4 • Samba Version < 4.5.10 • Samba Version < 4.4.14 Unaffected software: • Samba Version = 4.6.4 • Samba Version = 4.5.10 • Samba Version = 4.4.14 | https://github.com/adjaliya/-CVE-2017-7494-Samba-Exploit-POC | POC详情 |
| 16 | SambaCry exploit (CVE-2017-7494) | https://github.com/00mjk/exploit-CVE-2017-7494 | POC详情 |
| 17 | SambaCry (CVE-2017-7494) exploit for Samba | bind shell without Metasploit | https://github.com/d3fudd/CVE-2017-7494_SambaCry | POC详情 |
| 18 | None | https://github.com/yinyinnnnn/CVE-2017-7494-payload | POC详情 |
| 19 | None | https://github.com/Threekiii/Awesome-POC/blob/master/%E5%85%B6%E4%BB%96%E6%BC%8F%E6%B4%9E/Samba%20%E8%BF%9C%E7%A8%8B%E5%91%BD%E4%BB%A4%E6%89%A7%E8%A1%8C%E6%BC%8F%E6%B4%9E%20CVE-2017-7494.md | POC详情 |
| 20 | https://github.com/vulhub/vulhub/blob/master/samba/CVE-2017-7494/README.md | POC详情 | |
| 21 | Custom Docker Image | https://github.com/FelipeR-UFBA/cve-2017-7494-fixed | POC详情 |
| 22 | None | https://github.com/sudlit/CVE-2017-7494 | POC详情 |
| 23 | CDT Ansible playbook for deploying CVE-2017-7494 aka "SambaCry" to an Ubuntu box | https://github.com/Zanex360/cdt-samba-deploy | POC详情 |
| 24 | CDT Ansible playbook for deploying CVE-2017-7494 aka "SambaCry" to an Ubuntu box | https://github.com/Zanex360/cdt-vulnsamba-deploy | POC详情 |
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CVE-2017-7494 厂商安全公告 (10)
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https://security.netapp.com/advisory/ntap-20170524-0001/ x_refsource_CONFIRM
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CVE-2017-7494 公开利用代码 (2)
CVE-2017-7494 其他参考 (4)
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https://www.samba.org/samba/security/CVE-2017-7494.html x_refsource_CONFIRM
IV. Related Vulnerabilities
V. Comments for CVE-2017-7494
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