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CVE-2017-12151

Quick assessment

Affected
Samba samba
Exploitation
High exploitation probability; assess promptly
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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 4.4.16之前版本、4.5.14之前版本和4.6.8之前版本中存在加密问题漏洞，该漏洞源于在max协议被设置成为‘SMB3’时，客户端软件没有正确的进行签名和加密DFS重定向。攻击者可通过实施中间人攻击利用该漏洞读取或更改连接的内容。

AI Predicted 7.5 Difficulty: Easy EPSS 4.10% · P91

Possible ATT&CK Techniques 1 AI

T1557 · Adversary-in-the-Middle
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I. Basic Information for CVE-2017-12151

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in the way samba client before samba 4.4.16, samba 4.5.14 and samba 4.6.8 used encryption with the max protocol set as SMB3. The connection could lose the requirement for signing and encrypting to any DFS redirects, allowing an attacker to read or alter the contents of the connection via a man-in-the-middle attack.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
通道可被非端点访问(中间人攻击)
Source: CVE Program / CVE List V5
Vulnerability Title
Samba 加密问题漏洞
Source: CNNVD (China National Vulnerability Database)
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 4.4.16之前版本、4.5.14之前版本和4.6.8之前版本中存在加密问题漏洞，该漏洞源于在max协议被设置成为‘SMB3’时，客户端软件没有正确的进行签名和加密DFS重定向。攻击者可通过实施中间人攻击利用该漏洞读取或更改连接的内容。
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)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Samba samba 4.4.16 -

II. Public POCs for CVE-2017-12151

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III. Intelligence Information for CVE-2017-12151

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Vendor Advisories for CVE-2017-12151 (6)

Other References for CVE-2017-12151 (2)

IV. Related Vulnerabilities

Same product: samba
Same vendor: Samba
Same weakness: CWE-300

V. Comments for CVE-2017-12151

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