CVE-2021-40438— Apache HTTP Server 代码问题漏洞
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I. CVE-2021-40438の基本情報
脆弱性情報
脆弱性についてご質問がありますか？Shenlongの分析が参考になるかご確認ください！
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脆弱性タイトル
mod_proxy SSRF
ソース: NVD (National Vulnerability Database)
脆弱性説明
A crafted request uri-path can cause mod_proxy to forward the request to an origin server choosen by the remote user. This issue affects Apache HTTP Server 2.4.48 and earlier.
ソース: NVD (National Vulnerability Database)
CVSS情報
N/A
ソース: NVD (National Vulnerability Database)
脆弱性タイプ
服务端请求伪造(SSRF)
ソース: NVD (National Vulnerability Database)
脆弱性タイトル
Apache HTTP Server 代码问题漏洞
ソース: CNNVD (China National Vulnerability Database)
脆弱性説明
Apache HTTP Server是美国阿帕奇（Apache）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存在代码问题漏洞，该漏洞是由于系统对用户的输入没有进行严格的过滤导致，攻击者可以构造恶意数据对目标服务器进行SSRF攻击。该漏洞可做为攻击目标服务器内网的跳板，以此对服务器所在内网进行端口扫描、攻击运行在内网的应用程序、下载内网资源等。
ソース: CNNVD (China National Vulnerability Database)
CVSS情報
N/A
ソース: CNNVD (China National Vulnerability Database)
脆弱性タイプ
N/A
ソース: CNNVD (China National Vulnerability Database)
影響を受ける製品
| ベンダー | プロダクト | 影響を受けるバージョン | CPE | 購読 |
|---|---|---|---|---|
| Apache Software Foundation | Apache HTTP Server | Apache HTTP Server 2.4 ~ 2.4.48 | - |
II. CVE-2021-40438の公開POC
| # | POC説明 | ソースリンク | Shenlongリンク |
|---|---|---|---|
| 1 | None | https://github.com/xiaojiangxl/CVE-2021-40438 | POC詳細 |
| 2 | CVE-2021-40438 exploit PoC with Docker setup. | https://github.com/sixpacksecurity/CVE-2021-40438 | POC詳細 |
| 3 | None | https://github.com/BabyTeam1024/CVE-2021-40438 | POC詳細 |
| 4 | Dockerized Proof-of-Concept of CVE-2021-40438 in Apache 2.4.48. | https://github.com/ericmann/apache-cve-poc | POC詳細 |
| 5 | Sigma-Rule-for-CVE-2021-40438-Attack-Attemp | https://github.com/pisut4152/Sigma-Rule-for-CVE-2021-40438-exploitation-attempt | POC詳細 |
| 6 | Apache forward request CVE | https://github.com/Kashkovsky/CVE-2021-40438 | POC詳細 |
| 7 | check CVE-2021-40438 | https://github.com/gassara-kys/CVE-2021-40438 | POC詳細 |
| 8 | CVE-2021-40438 Apache <= 2.4.48 SSRF exploit | https://github.com/sergiovks/CVE-2021-40438-Apache-2.4.48-SSRF-exploit | POC詳細 |
| 9 | Apache <= 2.4.48 Mod_Proxy - Server-Side Request Forgery | https://github.com/Cappricio-Securities/CVE-2021-40438 | POC詳細 |
| 10 | Check Point Security Gateways RCE via CVE-2021-40438 | https://github.com/element-security/check-point-gateways-rce | POC詳細 |
| 11 | Check Point Security Gateways RCE via CVE-2021-40438 | https://github.com/yakir2b/check-point-gateways-rce | POC詳細 |
| 12 | Apache 2.4.48 and below contain an issue where uri-path can cause mod_proxy to forward the request to an origin server chosen by the remote user. | https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-40438.yaml | POC詳細 |
| 13 | None | https://github.com/Threekiii/Awesome-POC/blob/master/%E4%B8%AD%E9%97%B4%E4%BB%B6%E6%BC%8F%E6%B4%9E/Apache%20HTTP%20Server%202.4.48%20mod_proxy%20SSRF%E6%BC%8F%E6%B4%9E%20CVE-2021-40438.md | POC詳細 |
| 14 | None | https://github.com/chaitin/xray-plugins/blob/main/poc/manual/apache-httpd-cve-2021-40438-ssrf.yml | POC詳細 |
| 15 | https://github.com/vulhub/vulhub/blob/master/httpd/CVE-2021-40438/README.md | POC詳細 | |
| 16 | None | https://github.com/n0m-d/CVE-2021-40438-POC | POC詳細 |
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公開POCは見つかりませんでした。
ログインしてAI POCを生成III. CVE-2021-40438のインテリジェンス情報
请登录查看更多情报信息。
- https://www.oracle.com/security-alerts/cpujan2022.htmlx_refsource_MISC
- https://www.oracle.com/security-alerts/cpuapr2022.htmlx_refsource_MISC
- https://security.netapp.com/advisory/ntap-20211008-0004/x_refsource_CONFIRM
- https://www.tenable.com/security/tns-2021-17x_refsource_CONFIRM
- Apache HTTPD: Multiple Vulnerabilities (GLSA 202208-20) — Gentoo securityvendor-advisoryx_refsource_GENTOO
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SPBR6WUYBJNACHKE65SPL7TJOHX7RHWD/vendor-advisoryx_refsource_FEDORA
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZNCYSR3BXT36FFF4XTCPL3HDQK4VP45R/vendor-advisoryx_refsource_FEDORA
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-httpd-2.4.49-VWL69sWQvendor-advisoryx_refsource_CISCO
- https://nvd.nist.gov/vuln/detail/CVE-2021-40438
Same Patch Batch · Apache Software Foundation · 2021-09-16 · 6 CVEs total
| CVE-2021-41079 | Apache Tomcat DoS with unexpected TLS packet | |
| CVE-2021-39275 | ap_escape_quotes buffer overflow | |
| CVE-2021-39239 | XML External Entity (XXE) vulnerability | |
| CVE-2021-36160 | mod_proxy_uwsgi out of bound read | |
| CVE-2021-34798 | NULL pointer dereference in httpd core |
IV. 関連脆弱性
同じ製品: Apache HTTP Server
- CVE-2026-28780
Apache HTTP Server: buffer overflow in mod_proxy_ajp via aj - CVE-2026-29168
Apache HTTP Server: mod_md unrestricted OCSP response - CVE-2026-29169
Apache HTTP Server: mod_dav_lock indirect lock crash - CVE-2026-23918
Apache HTTP Server: http2: double free and possible RCE on e - CVE-2026-33006
Apache HTTP Server: mod_auth_digest timing attack
同じベンダー: Apache Software Foundation
- CVE-2026-39816
Apache NiFi: Missing Execute Code Required Permission on Tin - CVE-2026-25199
Apache CloudStack: Proxmox Extension Allows Unauthorized Cro - CVE-2026-25077
Apache CloudStack: Unauthenticated Command Injection in Dire - CVE-2025-69233
Apache CloudStack: Domain/account resources limits not honor - CVE-2025-66467
Apache CloudStack: MinIO policy remains intact on bucket del
同じ弱点: CWE-918
- CVE-2026-8193
Akaunting Invoice PDF Rendering dompdf.php server-side reque - CVE-2026-44313
LinkWarden: Server-Side Request Forgery (SSRF) in Link Creat - CVE-2026-42352
pygeoapi 0.23.x: Unauthenticated SSRF via OGC API - Processe - CVE-2026-42346
Postiz: TOCTOU DNS rebinding bypasses all SSRF URL validatio - CVE-2026-42339
New API: SSRF Filter Bypass via 0.0.0.0
V. CVE-2021-40438へのコメント
まだコメントはありません