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CVE-2016-4864

Quick assessment

Affected
Kazuho Oku H2O
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.

H2O是一套开源的Web服务器软件。 H2O 2.0.3及之前的版本和2.1.0-beta2及之前的版本中存在安全漏洞。远程攻击者可通过fastcgi、mruby、proxy、redirect或reproxy在模板文件中格式化字符串标识符利用该漏洞造成拒绝服务。

AI Predicted 7.5 Difficulty: Easy EPSS 1.80% · P78

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2016-4864

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
H2O versions 2.0.3 and earlier and 2.1.0-beta2 and earlier allows remote attackers to cause a denial-of-service (DoS) via format string specifiers in a template file via fastcgi, mruby, proxy, redirect or reproxy.
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
H2O 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
H2O是一套开源的Web服务器软件。 H2O 2.0.3及之前的版本和2.1.0-beta2及之前的版本中存在安全漏洞。远程攻击者可通过fastcgi、mruby、proxy、redirect或reproxy在模板文件中格式化字符串标识符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
Kazuho Oku H2O versions 2.0.3 and earlier -

II. Public POCs for CVE-2016-4864

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III. Intelligence Information for CVE-2016-4864

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Vendor Advisories for CVE-2016-4864 (1)

Other References for CVE-2016-4864 (1)

IV. Related Vulnerabilities

Same product: H2O
Same vendor: Kazuho Oku

V. Comments for CVE-2016-4864

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