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CVE-2017-9798

Quick assessment

Affected
Apache Software Foundation Apache HTTP Server
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Apache HTTP Server是美国阿帕奇（Apache）软件基金会的一款开源网页服务器。该服务器具有快速、可靠且可通过简单的API进行扩充的特点。 Apache HTTP Server 2.2.34及之前的版本和2.4.x版本至2.4.27版本中存在双重释放漏洞。攻击者可通过发送未经身份验证的OPTIONS HTTP请求利用该漏洞读取进程内存中的数据。

AI Predicted 4.3 Difficulty: Hard EPSS 95.00% · P100

Public Exploits 2

ExploitDB · 1 EDB-42745 [webapps]
Metasploit · 1 apache_optionsbleed.rb [auxiliary]
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I. Basic Information for CVE-2017-9798

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Apache httpd allows remote attackers to read secret data from process memory if the Limit directive can be set in a user's .htaccess file, or if httpd.conf has certain misconfigurations, aka Optionsbleed. This affects the Apache HTTP Server through 2.2.34 and 2.4.x through 2.4.27. The attacker sends an unauthenticated OPTIONS HTTP request when attempting to read secret data. This is a use-after-free issue and thus secret data is not always sent, and the specific data depends on many factors including configuration. Exploitation with .htaccess can be blocked with a patch to the ap_limit_section function in server/core.c.
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
Apache HTTP Server 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Apache HTTP Server是美国阿帕奇（Apache）软件基金会的一款开源网页服务器。该服务器具有快速、可靠且可通过简单的API进行扩充的特点。 Apache HTTP Server 2.2.34及之前的版本和2.4.x版本至2.4.27版本中存在双重释放漏洞。攻击者可通过发送未经身份验证的OPTIONS HTTP请求利用该漏洞读取进程内存中的数据。
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
Apache Software Foundation Apache HTTP Server Apache HTTP Server through 2.2.34 and 2.4.x through 2.4.27 -

II. Public POCs for CVE-2017-9798

# POC Description Source Link Shenlong Link
1 Checks a shared hosting environment for CVE-2017-9798 https://github.com/nitrado/CVE-2017-9798 POC Details
2 CVE-2017-9798 https://github.com/pabloec20/optionsbleed POC Details
3 None https://github.com/l0n3rs/CVE-2017-9798 POC Details
4 OptionsBleed (CVE-2017-9798) PoC / Scanner https://github.com/brokensound77/OptionsBleed-POC-Scanner POC Details
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III. Intelligence Information for CVE-2017-9798

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Patches & Fixes for CVE-2017-9798 (1)

Vendor Advisories for CVE-2017-9798 (28)

Exploits & Public PoCs for CVE-2017-9798 (1)

Mailing List Discussions for CVE-2017-9798 (19)

Security Blog Posts for CVE-2017-9798 (2)

Other References for CVE-2017-9798 (4)

IV. Related Vulnerabilities

Same product: Apache HTTP Server
Same vendor: Apache Software Foundation

V. Comments for CVE-2017-9798

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