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CVE-2017-7522

Quick assessment

Affected
OpenVPN Technologies, Inc OpenVPN
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.

OpenVPN是美国OpenVPN公司的一个用于创建虚拟专用网络（VPN）加密通道的软件包，它使用OpenSSL库来加密数据与控制信息，并允许创建的VPN使用公开密钥、电子证书或者用户名/密码来进行身份验证。 OpenVPN 2.4.3之前的版本和2.3.17之前的版本中存在安全漏洞。远程攻击者可通过发送带有嵌入空字符的证书利用该漏洞造成拒绝服务。

AI Predicted 5.3 Difficulty: Easy EPSS 5.54% · P93
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I. Basic Information for CVE-2017-7522

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
OpenVPN versions before 2.4.3 and before 2.3.17 are vulnerable to denial-of-service by authenticated remote attacker via sending a certificate with an embedded NULL character.
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
OpenVPN 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OpenVPN是美国OpenVPN公司的一个用于创建虚拟专用网络（VPN）加密通道的软件包，它使用OpenSSL库来加密数据与控制信息，并允许创建的VPN使用公开密钥、电子证书或者用户名/密码来进行身份验证。 OpenVPN 2.4.3之前的版本和2.3.17之前的版本中存在安全漏洞。远程攻击者可通过发送带有嵌入空字符的证书利用该漏洞造成拒绝服务。
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
OpenVPN Technologies, Inc OpenVPN before 2.4.3 -

II. Public POCs for CVE-2017-7522

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III. Intelligence Information for CVE-2017-7522

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Vendor Advisories for CVE-2017-7522 (2)

Other References for CVE-2017-7522 (1)

Same Patch Batch · OpenVPN Technologies, Inc · 2017-06-27 · 4 CVEs total

CVE-2017-7508 OpenVPN 安全漏洞
CVE-2017-7520 OpenVPN 安全漏洞
CVE-2017-7521 OpenVPN 安全漏洞

IV. Related Vulnerabilities

Same product: OpenVPN
Same vendor: OpenVPN Technologies, Inc
Same weakness: CWE-20

V. Comments for CVE-2017-7522

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