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Kitploit
Kitploit
•added 2026/10/04 6:46 p.m.•10 views

cve-2022-21907-http.sys

cve-2022-21907-http.sys by 1vere$k CVE-2022-21907 - http.sys ドライバーにおける Double Free。 概要 認証されていない攻撃者が、"Accept-Encoding" HTTP リクエストヘッダーを含む HTTP リクエストを送信することで、HTTP プロトコルスタック http.sys がパケットを処理する際の未知のコーディングリスト内で double free が発生し、カーネルクラッシュを引き起こす可能性があります。 影響を受けるシステム Windows Server 2019 および Windows 10 バージ...

10CVSS8.5AI score0.9279EPSS
SaveExploits21
Kitploit
Kitploit
•added 2026/10/04 6:26 p.m.•12 views

CVE-2021-31166

CVE-2021-31166 作った理由 私は最近、CVE-2021-31166 のエクスプロイトを作成しました。これは CVE-2021-31166 と CVE-2021-31166 を利用します。ペネトレーションテスターは https://github.com/mauricelambert/CVE-2021-31166 を使うべきですが、SOC チームは適切に修正するために特定の脆弱性を把握する必要があるため、このエクスプロイトを作成しました。 説明 脆弱な IIS Web サーバーを攻撃するための、純粋な Python、PowerShell、Ruby...

9.8CVSS8.4AI score0.99867EPSS
SaveExploits24References2
Kitploit
Kitploit
•added 2026/10/04 2:44 p.m.•9 views

CVE-2022-21907-http.sys

CVE-2022-21907 - http.sys ドライバーの二重解放 Double Free CVE-2022-21907 - http.sys ドライバーの二重解放 Double Free 概要 認証されていない攻撃者が、HTTP プロトコル スタック http.sys 内の unknown coding-list で二重解放を引き起こす「Accept-Encoding」HTTP リクエスト ヘッダーを含む HTTP リクエストを送信してパケットを処理させると、カーネル クラッシュが発生します。 脆弱なシステム Windows Server 2019 および Windows 10...

10CVSS8.7AI score0.9279EPSS
SaveExploits21References3
Kitploit
Kitploit
•added 2026/10/04 2:06 p.m.•10 views

CVE-2021-31166

CVE-2021-31166 CVE-2021-31166(HTTP プロトコルスタックの脆弱性)の悪用試行の検出 Suricata ルール Zeek パッケージ 参照 https://corelight.blog/2021/05/27/detecting-cve-2021-31166-http-vulnerability/ https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-31166 https://github.com/0vercl0k/CVE-2021-31166...

9.8CVSS8.5AI score0.99867EPSS
SaveExploits24References1
Kitploit
Kitploit
•added 2026/10/04 1:39 p.m.•16 views

cve-2022-21907

CVE-2022-21907 Golang アプリケーション by 1vere$k CVE-2022-21907 - http.sys ドライバにおける Double Free 概要 これは、複数のターゲットに対して同時にリクエストを送信できるマルチスレッドの Golang アプリケーションです。 POST リクエストではあまり効率的ではありませんが、線形方式と比較して約30%の速度向上を実現します。 認証されていない攻撃者は、「Accept-Encoding」HTTP リクエストヘッダーを含む HTTP リクエストを送信することで、パケット処理のために HTTP プロトコルスタック...

10CVSS8.6AI score0.9279EPSS
SaveExploits21
Nuclei
Nuclei
•added 2026/10/03 2:05 a.m.•68 views

Webmin < 1.920 - Authenticated Remote Code Execution

rpc.cgi in Webmin through 1.920 allows authenticated Remote Code Execution via a crafted object name because unserialisevariable makes an eval call. NOTE: the WebminServersIndex documentation states "RPC can be used to run any command or modify any file on a server, which is why access to it must...

8.8CVSS7.8AI score0.34798EPSS
SaveExploits4References5
Kitploit
Kitploit
•added 2026/09/28 1:47 p.m.•9 views

CVE-2021-31166-Exploit

CVE-2021-31166-Exploit MS HTTPプロトコルスタックのRCE脆弱性(CVE-2021-31166)のエクスプロイト 特別に細工されたHTTPリクエストを脆弱なWindowsバージョンに送信すると、DoS攻撃が発生します。そして、サーバーはブルースクリーンエラーで再起動します。 Http.sysは、HTTPリクエストを処理し、それに対する応答を作成するWindowsカーネルドライバです。 この脆弱なhttp.sysドライバは、細工された「Accept-Encoding」ヘッダーを処理できず、クラッシュします。その結果、サーバーが再起動します。...

9.8CVSS8.2AI score0.99867EPSS
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Tenable Nessus
Tenable Nessus
•added 2026/07/30 12:00 a.m.•22 views

Debian dla-4706 : ruby-rack - security update

The remote Debian 11 / 12 host has a package installed that is affected by multiple vulnerabilities as referenced in the dla-4706 advisory. - ------------------------------------------------------------------------- Debian LTS Advisory DLA-4706-1 [email protected]...

7.5CVSS6.5AI score0.01612EPSS
SaveExploits1References23
Veracode
Veracode
•added 2026/07/25 5:11 p.m.•15 views

Uncontrolled Resource Consumption (Denial Of Service)

io.netty, netty-codec-http is vulnerable to Uncontrolled Resource Consumption Denial of Service. The vulnerability is due to the HttpContentEncoder maintaining an unbounded acceptEncodingQueue that stores attacker-controlled data without any size limit, which allows an attacker to exploit HTTP/1....

7.5CVSS6AI score0.00609EPSS
SaveExploits0References5Affected Software1
Github Security Blog
Github Security Blog
•added 2026/07/22 9:49 p.m.•27 views

Netty: [HttpContentEncoder] Unbounded Per-Connection Queue Growth via HTTP/1.1 Pipelining Leads to Denial of Service

Impact HttpContentEncoder the superclass of the production handler HttpContentCompressor maintains a per-channel ArrayDeque named acceptEncodingQueue that accumulates attacker-controlled data without any size limit. The queue is filled on the I/O thread for every inbound HTTP request and drained...

7.5CVSS5.9AI score0.00609EPSS
SaveExploits0References4Affected Software1
Packet Storm
Packet Storm
•added 2026/06/24 12:00 a.m.•84 views

📄 HTTP.sys HTTP/2 Denial of Service

This advisory provides simple proof of concept details to trigger the HTTP/2 denial of service condition related to malformed Accept-Encoding headers. Titles: CVE-2026-49160 - HTTP.sys HTTP/2 Denial of Service DoS Vulnerability Author: nu11secur1ty Date: 06/24/2026 Vendor: Microsoft Corporation...

7.5CVSS6.1AI score0.01174EPSS
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OSV
OSV
•added 2026/06/18 9:28 p.m.•27 views

MGASA-2026-0226 Updated ruby-rack packages fix security vulnerabilities

CVE-2026-26961 Greedy multipart boundary parsing can cause parser differentials and WAF bypass. Forwarded header semicolon injection enables Host and Scheme spoofing. CVE-2026-34230 Quadratic complexity in Rack::Utils.selectbestencoding via wildcard Accept-Encoding header. CVE-2026-34763 Root...

7.5CVSS6.5AI score0.00658EPSS
SaveExploits2References14
Ubuntu
Ubuntu
•added 2026/04/17 12:23 a.m.•25 views

USN-8182-1: Rack vulnerabilities

Andrew Lacambra discovered that Rack did not properly parse certain regular expressions. An attacker could possibly use this issue to bypass network security filters. This issue only affected Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, Ubuntu 24.04 LTS, and Ubuntu 25.10. CVE-2026-26961 William T. Nelson...

7.5CVSS6.6AI score0.00658EPSS
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Tenable Nessus
Tenable Nessus
•added 2026/04/17 12:00 a.m.•11 views

Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 25.10 : Rack vulnerabilities (USN-8182-1)

The remote Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 25.10 host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-8182-1 advisory. Andrew Lacambra discovered that Rack did not properly parse certain regular...

7.5CVSS6.8AI score0.00658EPSS
SaveExploits2References14
Tenable Nessus
Tenable Nessus
•added 2026/04/04 12:00 a.m.•11 views

Linux Distros Unpatched Vulnerability : CVE-2026-34230

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Rack is a modular Ruby web server interface. Prior to versions 2.2.23, 3.1.21, and 3.2.6, Rack::Utils.selectbestencoding processes Accept-Encoding values with...

7.5CVSS6.8AI score0.00481EPSS
SaveExploits0References3
SUSE CVE
SUSE CVE
•added 2026/04/03 11:25 p.m.•15 views

SUSE CVE-2026-34230

Rack is a modular Ruby web server interface. Prior to versions 2.2.23, 3.1.21, and 3.2.6, Rack::Utils.selectbestencoding processes Accept-Encoding values with quadratic time complexity when the header contains many wildcard entries. Because this method is used by Rack::Deflater to choose a respon...

5.3CVSS6.8AI score0.00481EPSS
SaveExploits0References7
RedhatCVE
RedhatCVE
•added 2026/04/03 8:16 p.m.•14 views

CVE-2026-34230

A flaw was found in Rack. An unauthenticated attacker can exploit a vulnerability in the Rack::Utils.selectbestencoding method by sending a specially crafted Accept-Encoding header with numerous wildcard entries. This leads to quadratic time complexity during processing, causing disproportionate...

7.5CVSS7AI score0.00481EPSS
SaveExploits0References4
EUVD
EUVD
•added 2026/04/02 8:32 p.m.•31 views

EUVD-2026-18378

Rack has quadratic complexity in Rack::Utils.selectbestencoding via wildcard Accept-Encoding header...

5.3CVSS7.1AI score0.00481EPSS
SaveExploits0References2
Github Security Blog
Github Security Blog
•added 2026/04/02 8:32 p.m.•17 views

Rack has quadratic complexity in Rack::Utils.select_best_encoding via wildcard Accept-Encoding header

Summary Rack::Utils.selectbestencoding processes Accept-Encoding values with quadratic time complexity when the header contains many wildcard entries. Because this method is used by Rack::Deflater to choose a response encoding, an unauthenticated attacker can send a single request with a crafted...

7.5CVSS7AI score0.00481EPSS
SaveExploits0References4Affected Software1
OSV
OSV
•added 2026/04/02 8:32 p.m.•12 views

GHSA-V569-HP3G-36WR Rack has quadratic complexity in Rack::Utils.select_best_encoding via wildcard Accept-Encoding header

Summary Rack::Utils.selectbestencoding processes Accept-Encoding values with quadratic time complexity when the header contains many wildcard entries. Because this method is used by Rack::Deflater to choose a response encoding, an unauthenticated attacker can send a single request with a crafted...

7.5CVSS7AI score0.00481EPSS
SaveExploits0References4
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