CVE-2021-39242
Quick assessment
Affected
n/a n/a
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.
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存在安全漏洞，该漏洞源于它可能导致出现攻击者可利用该漏洞控制的HTTP Host报头的情况，因为主机和权威之间的不匹配被错误处理。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2021-39242
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
An issue was discovered in HAProxy 2.2 before 2.2.16, 2.3 before 2.3.13, and 2.4 before 2.4.3. It can lead to a situation with an attacker-controlled HTTP Host header, because a mismatch between Host and authority is mishandled.
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
Haproxy HAProxy 安全漏洞
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存在安全漏洞，该漏洞源于它可能导致出现攻击者可利用该漏洞控制的HTTP Host报头的情况，因为主机和权威之间的不匹配被错误处理。
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 |
|---|---|---|---|---|
| - | n/a | n/a | - |
|
II. Public POCs for CVE-2021-39242
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2021-39242 (1)
Mailing List Discussions for CVE-2021-39242 (3)
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https://www.mail-archive.com/haproxy%40formilux.org/msg41041.html x_refsource_MISC
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https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4ALECUZDIMT5FYGP6V6PVSI4BKVZTZWN/ vendor-advisory x_refsource_FEDORA
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https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RPNY4WZIQUAUOCLIMUPC37AQWNXTWIQM/ vendor-advisory x_refsource_FEDORA
Other References for CVE-2021-39242 (1)
Same Patch Batch · n/a · 2021-08-17 · 46 CVEs total
| CVE-2021-21810 | AT&T Labs Xmill 缓冲区错误漏洞 | |
| CVE-2021-39248 | EDX Open edX 跨站脚本漏洞 | |
| CVE-2020-23331 | Bento4 代码问题漏洞 | |
| CVE-2020-23334 | Bento4 缓冲区错误漏洞 | |
| CVE-2020-23341 | ATutor 跨站脚本漏洞 | |
| CVE-2021-28372 | ThroughTek Kalay Platform 访问控制错误漏洞 | |
| CVE-2021-39250 | Invision Community 跨站脚本漏洞 | |
| CVE-2021-39249 | Invision Community 安全特征问题漏洞 | |
| CVE-2020-23333 | Bento4 缓冲区错误漏洞 | |
| CVE-2021-38702 | Cyberoam NetGenie 跨站脚本漏洞 | |
| CVE-2021-39247 | GNU Zint Barcode Generator 缓冲区错误漏洞 | |
| CVE-2020-18164 | TPshop SQL注入漏洞 | |
| CVE-2020-28594 | PrusaSlicer 资源管理错误漏洞 | |
| CVE-2020-13589 | Rukovoditel SQL注入漏洞 | |
| CVE-2020-13588 | Rukovoditel SQL注入漏洞 | |
| CVE-2021-21832 | Deamon Tools Pro 输入验证错误漏洞 | |
| CVE-2020-22937 | EmpireCMS 代码注入漏洞 | |
| CVE-2021-25263 | Yandex Browser 安全漏洞 | |
| CVE-2021-39240 | Haproxy HAProxy 安全漏洞 | |
| CVE-2021-39241 | Haproxy HAProxy 安全漏洞 |
Showing top 20 of 46 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
V. Comments for CVE-2021-39242
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