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CVE-2021-40346

EPSS 92.38% · P100
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I. Basic Information for CVE-2021-40346

Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
An integer overflow exists in HAProxy 2.0 through 2.5 in htx_add_header that can be exploited to perform an HTTP request smuggling attack, allowing an attacker to bypass all configured http-request HAProxy ACLs and possibly other ACLs.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Haproxy HAProxy 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Haproxy HAProxy是法国HAProxy（Haproxy）公司的一款开源的TCP/HTTP负载均衡服务器。该服务器提供4层、7层代理，并能支持上万级别的连接，具有高效、稳定等特点。 HAProxy 存在输入验证错误漏洞，该漏洞源于 HAProxy 中的 htx_add_header() 和 htx_add_trailer() 函数中缺少标头名称长度检查可能会导致请求走私攻击或响应拆分攻击。
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

VendorProductAffected VersionsCPESubscribe
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II. Public POCs for CVE-2021-40346

#POC DescriptionSource LinkShenlong Link
1CVE-2021-40346 PoC (HAProxy HTTP Smuggling)https://github.com/knqyf263/CVE-2021-40346POC Details
2CVE-2021-40346 integer overflow enables http smugglinghttps://github.com/donky16/CVE-2021-40346-POCPOC Details
3Nonehttps://github.com/alikarimi999/CVE-2021-40346POC Details
4HAProxy CVE-2021-40346https://github.com/Vulnmachines/HAProxy_CVE-2021-40346POC Details
5CVE-2021-40346 - HaProxy HTTP request smuggling through integer overflowhttps://github.com/alexOarga/CVE-2021-40346POC Details
6HTTP Request Smugglinghttps://github.com/BoianEduard/CVE-2021-40346POC Details
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III. Intelligence Information for CVE-2021-40346

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Same Patch Batch · n/a · 2021-09-08 · 19 CVEs total

CVE-2021-234047.6 HIGHCross-site Request Forgery (CSRF)
CVE-2021-31274Librenms 跨站脚本漏洞
CVE-2021-40818Glewlwyd SSO server 缓冲区错误漏洞
CVE-2021-40814Prestashop SQL注入漏洞
CVE-2021-36440ShowDoc 代码问题漏洞
CVE-2020-26772PPGo_Job 操作系统命令注入漏洞
CVE-2020-19138DotCMS 代码问题漏洞
CVE-2020-19137Autumn 安全漏洞
CVE-2021-40797OpenStack 安全漏洞
CVE-2021-40537owncloud 代码问题漏洞
CVE-2021-21996Saltstack SaltStack Salt 安全漏洞
CVE-2021-33982Fish Hunt FL 代码问题漏洞
CVE-2021-33981Fish Hunt FL 信息泄露漏洞
CVE-2021-21897Ribbonsoft dxflib 数字错误漏洞
CVE-2021-22004SaltStack Salt竞争条件问题漏洞
CVE-2021-36695Deskpro 跨站脚本漏洞
CVE-2021-40377Smartertools SmarterTools SmarterMail 跨站脚本漏洞
CVE-2021-40812GD Graphics Library 缓冲区错误漏洞

IV. Related Vulnerabilities

Same product: n/a
Same vendor: n/a

V. Comments for CVE-2021-40346

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