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CVE-2020-37119— Nsauditor 3.2.1.0 - Buffer Overflow (SEH+ASLR bypass (3 bytes overwrite))

Quick assessment

Affected
Nsasoft Nsauditor
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.

Nsasoft Nsauditor是美国Nsasoft公司的一款网络安全软件。 Nsasoft Nsauditor 3.0.28版本和3.2.1.0版本存在安全漏洞，该漏洞源于DNS Lookup工具存在缓冲区溢出，可能导致攻击者执行任意代码。

CVSS 9.8 · Critical EPSS 0.70% · P52

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution

Affected Version Matrix 2

VendorProduct Version RangeStatus
Nsasoft Nsauditor 3.2.1.0 affected
3.0.28 affected
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I. Basic Information for CVE-2020-37119

Vulnerability Information
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Vulnerability Title
Nsauditor 3.2.1.0 - Buffer Overflow (SEH+ASLR bypass (3 bytes overwrite))
Source: CVE Program / CVE List V5
Vulnerability Description
Nsauditor 3.0.28 and 3.2.1.0 contains a buffer overflow vulnerability in the DNS Lookup tool that allows attackers to execute arbitrary code by overwriting memory. Attackers can craft a malicious DNS query payload to trigger a three-byte overwrite, bypass ASLR, and execute shellcode through a carefully constructed exploit.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
栈缓冲区溢出
Source: CVE Program / CVE List V5
Vulnerability Title
Nsasoft Nsauditor 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Nsasoft Nsauditor是美国Nsasoft公司的一款网络安全软件。 Nsasoft Nsauditor 3.0.28版本和3.2.1.0版本存在安全漏洞，该漏洞源于DNS Lookup工具存在缓冲区溢出，可能导致攻击者执行任意代码。
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)

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Affected Products

Vendor Product Affected Versions CPE Subscribe
Nsasoft Nsauditor 3.2.1.0 -

II. Public POCs for CVE-2020-37119

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III. Intelligence Information for CVE-2020-37119

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IV. Related Vulnerabilities

Same product: Nsauditor
Same vendor: Nsasoft
Same weakness: CWE-121

V. Comments for CVE-2020-37119

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