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CVE-2017-2891

Quick assessment

Affected
Cesanta Mongoose
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.

Cesanta Mongoose是爱尔兰Cesanta公司的一套嵌入式服务器库，它包括TCP、HTTP客户端和服务器、WenSocket客户端和服务器等功能。 Cesanta Mongoose 6.8版本中的HTTP服务器的实现存在释放后重用漏洞。远程攻击者可通过发送HTTP请求利用该漏洞执行代码。

AI Predicted 9.8 Difficulty: Easy EPSS 2.76% · P86

Possible ATT&CK Techniques 1 AI

T1059.005 · Visual Basic
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I. Basic Information for CVE-2017-2891

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
An exploitable use-after-free vulnerability exists in the HTTP server implementation of Cesanta Mongoose 6.8. An ordinary HTTP POST request with a CGI target can cause a reuse of previously freed pointer potentially resulting in remote code execution. An attacker needs to send this HTTP request over the network to trigger this vulnerability.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Cesanta Mongoose 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cesanta Mongoose是爱尔兰Cesanta公司的一套嵌入式服务器库，它包括TCP、HTTP客户端和服务器、WenSocket客户端和服务器等功能。 Cesanta Mongoose 6.8版本中的HTTP服务器的实现存在释放后重用漏洞。远程攻击者可通过发送HTTP请求利用该漏洞执行代码。
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)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Cesanta Mongoose 6.8 -

II. Public POCs for CVE-2017-2891

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III. Intelligence Information for CVE-2017-2891

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Other References for CVE-2017-2891 (1)

Same Patch Batch · Cesanta · 2017-11-07 · 8 CVEs total

CVE-2017-2892 Cesanta Mongoose 数字错误漏洞
CVE-2017-2893 Cesanta Mongoose 安全漏洞
CVE-2017-2894 Cesanta Mongoose 缓冲区错误漏洞
CVE-2017-2895 Cesanta Mongoose 数字错误漏洞
CVE-2017-2909 Cesanta Mongoose 安全漏洞
CVE-2017-2921 Cesanta Mongoose 数字错误漏洞
CVE-2017-2922 Cesanta Mongoose 安全漏洞

IV. Related Vulnerabilities

Same product: Mongoose
Same vendor: Cesanta

V. Comments for CVE-2017-2891

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