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CVE-2020-5139

Quick assessment

Affected
SonicWall SonicOS
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

SonicWall SonicOS SSLVPN NACagent是美国SonicWall公司的一款VPN（虚拟私人网络）客户端应用程序。 SonicOS SSLVPN 存在安全漏洞，攻击者可利用该漏洞由于释放无效指针而导致拒绝服务(DoS)，从而导致防火墙崩溃。以下产品及版本受到影响：5.9.1.7版本，5.9.1.13版本，6.5.4.7版本，6.5.1.12版本，6.0.5.3版本，SonicOSv 6.5.4版本，SonicOS 7.0.0.0版本。

AI Predicted 7.5 Difficulty: Easy EPSS 1.76% · P77

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2020-5139

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in SonicOS SSLVPN service allows a remote unauthenticated attacker to cause Denial of Service (DoS) due to the release of Invalid pointer and leads to a firewall crash. This vulnerability affected SonicOS Gen 5 version 5.9.1.7, 5.9.1.13, Gen 6 version 6.5.4.7, 6.5.1.12, 6.0.5.3, SonicOSv 6.5.4.v and Gen 7 version SonicOS 7.0.0.0.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
对无效指针或索引的释放
Source: CVE Program / CVE List V5
Vulnerability Title
SonicWall SonicOS SSLVPN NACagent 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
SonicWall SonicOS SSLVPN NACagent是美国SonicWall公司的一款VPN（虚拟私人网络）客户端应用程序。 SonicOS SSLVPN 存在安全漏洞，攻击者可利用该漏洞由于释放无效指针而导致拒绝服务(DoS)，从而导致防火墙崩溃。以下产品及版本受到影响：5.9.1.7版本，5.9.1.13版本，6.5.4.7版本，6.5.1.12版本，6.0.5.3版本，SonicOSv 6.5.4版本，SonicOS 7.0.0.0版本。
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
SonicWall SonicOS SonicOS 6.5.4.7-79n and earlier -

II. Public POCs for CVE-2020-5139

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III. Intelligence Information for CVE-2020-5139

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Other References for CVE-2020-5139 (1)

Same Patch Batch · SonicWall · 2020-10-12 · 11 CVEs total

CVE-2020-5133 SonicWall SonicOS 安全漏洞
CVE-2020-5134 SonicWall SonicOS 缓冲区错误漏洞
CVE-2020-5135 SonicWall SonicOS 缓冲区错误漏洞
CVE-2020-5136 SonicWall SonicOS 缓冲区错误漏洞
CVE-2020-5137 SonicWall SonicOS 缓冲区错误漏洞
CVE-2020-5138 SonicWall SonicOS 缓冲区错误漏洞
CVE-2020-5140 SonicWall SonicOS 缓冲区错误漏洞
CVE-2020-5141 SonicWall SonicOS 安全漏洞
CVE-2020-5142 SonicWall SonicOS SSLVPN NACagent 跨站脚本漏洞
CVE-2020-5143 SonicWall SonicOS SSLVPN NACagent 安全漏洞

IV. Related Vulnerabilities

Same product: SonicOS
Same vendor: SonicWall
Same weakness: CWE-763

V. Comments for CVE-2020-5139

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