Apache · Apache
CVE-2021-40438
mod_proxy SSRF
공격에 악용됨
랜섬웨어에 사용됨
치명적 9.0 공격 가능성: >99.9%
무엇인가
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.
할 일
Apply updates per vendor instructions.
미국 연방 기관 조치 기한: 2021년 12월 15일
- CISA 목록에 추가됨
- 2021년 12월 1일
- 게시됨
- 2021년 9월 16일
- 심각도
- 치명적 9.0 CVSS 3.1
- 향후 30일 내 공격 가능성(EPSS)
- >99.9% 알려진 모든 취약점 중 상위 0.1%
- 약점 유형
- CWE-918
- 자세히
- NVD · CVE.org · CISA
모든 참고 자료(19)
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SPBR6WUYBJNA…
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZNCYSR3BXT36…
- https://www.debian.org/security/2021/dsa-4982
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-httpd-2.4.49-VWL69sWQ
- https://security.gentoo.org/glsa/202208-20
- https://httpd.apache.org/security/vulnerabilities_24.html
- https://lists.apache.org/thread.html/r82838efc5fa6fc4c73986399c9b71573589f78b31846aff5bd9b1697%40%3Cusers.htt…
- https://lists.apache.org/thread.html/r82c077663f9759c7df5a6656f925b3ee4f55fcd33c889ba7cd687029%40%3Cusers.htt…
- https://lists.apache.org/thread.html/r3925e167d5eb1c75def3750c155d753064e1d34a143028bb32910432%40%3Cusers.htt…
- https://lists.apache.org/thread.html/r61fdbfc26ab170f4e6492ef3bd5197c20b862ce156e9d5a54d4b899c%40%3Cusers.htt…
- https://lists.debian.org/debian-lts-announce/2021/10/msg00001.html
- https://lists.apache.org/thread.html/r2eb200ac1340f69aa22af61ab34780c531d110437910cb9c0ece3b37%40%3Cbugs.http…
- https://lists.apache.org/thread.html/r210807d0bb55f4aa6fbe1512be6bcc4dacd64e84940429fba329967a%40%3Cusers.htt…
- https://lists.apache.org/thread.html/rf6954e60b1c8e480678ce3d02f61b8a788997785652e9557a3265c00%40%3Cusers.htt…
- https://www.oracle.com/security-alerts/cpujan2022.html
- https://www.tenable.com/security/tns-2021-17
- https://security.netapp.com/advisory/ntap-20211008-0004/
- https://www.oracle.com/security-alerts/cpuapr2022.html
- https://cert-portal.siemens.com/productcert/pdf/ssa-685781.pdf
Apache의 다른 악용된 결함
| 추가됨 | 취약점 | 제품 | 심각도 | 공격 가능성 |
|---|---|---|---|---|
| 2026. 10. 8. | Command Injection | Struts | 높음 8.1 | 97% |
| 2026. 8. 4. | Missing Encryption of Sensitive Data | Tomcat | 높음 7.5 | 99% |
| 2026. 4. 16. | Improper Input Validation | ActiveMQ | 높음 8.8 | 98% |
| 2025. 5. 1. | Improper Escaping of Output | HTTP Server | 치명적 9.1 | >99.9% |
| 2025. 4. 1. | Path Equivalence | Tomcat | 치명적 10.0 | 99.9% |
| 2025. 2. 4. | Forced Browsing | OFBiz | 치명적 9.8 | >99.9% |
| 2024. 9. 18. | Improper Access Control | HugeGraph-Server | 치명적 9.8 | 99.2% |
| 2024. 8. 27. | Incorrect Authorization | OFBiz | 높음 8.1 | 99.4% |
출처: Known Exploited Vulnerabilities(CISA, 퍼블릭 도메인), CVE records(cve.org), EPSS(FIRST). 공격 가능성은 누군가 향후 30일 안에 이 결함을 악용하려 할 확률에 대한 EPSS 추정치입니다.