HTTP fails to validate against control chars in header names which may lead to HTTP request smuggling
CVSS Skor
6.5
EPSS İhtimal
%2.9
Risk Skoru
0.2
Yayın
4 yıl önce
Etkilenen ürün ve sürüm için yayımlanan güvenlik güncellemesini uygulayın.
Envanterimdeki Etkisi
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Oturum kontrol ediliyor…
Zafiyet Açıklaması
DayBreach CVE AI Araştırması
CVE-2021-43797 için toplanan üretici, dağıtım, yama ve güvenlik kaynağı kayıtlarını karşılaştırıp kanıt bağlantılı bir açıklama hazırlayalım.
Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers & clients. Netty prior to version 4.1.71.Final skips control chars when they are present at the beginning / end of the header name. It should instead fail fast as these are not allowed by the spec and could lead to HTTP request smuggling. Failing to do the validation might cause netty to "sanitize" header names before it forward these to another remote system when used as proxy. This remote system can't see the invalid usage anymore, and therefore does not do the validation itself. Users should upgrade to version 4.1.71.Final.
IMPACT — Etkilenen Ürünler ve Yazılımlar
Affected Products
The following products are affected by CVE-2021-43797 vulnerability. Even if our threat engine is aware of the exact versions of the products that are affected, the information is represented below.
| ID | VENDOR | PRODUCT | ACTION |
|---|---|---|---|
| 1 | netty | netty | İncele |
| 2 | netty | netty | İncele |
| 3 | quarkus | quarkus | İncele |
| 4 | netapp | oncommand workflow automation | İncele |
| 5 | netapp | snapcenter | İncele |
| 6 | oracle | banking deposits and lines of credit servicing | İncele |
| 7 | oracle | banking party management | İncele |
| 8 | oracle | banking platform | İncele |
| 9 | oracle | coherence | İncele |
| 10 | oracle | coherence | İncele |
| 11 | oracle | communications cloud native core binding support function | İncele |
| 12 | oracle | communications cloud native core network slice selection function | İncele |
| 13 | oracle | communications cloud native core policy | İncele |
| 14 | oracle | communications cloud native core security edge protection proxy | İncele |
| 15 | oracle | communications cloud native core unified data repository | İncele |
| 16 | oracle | communications design studio | İncele |
| 17 | oracle | communications instant messaging server | İncele |
| 18 | oracle | helidon | İncele |
| 19 | oracle | helidon | İncele |
| 20 | oracle | peoplesoft enterprise peopletools | İncele |
| 21 | oracle | peoplesoft enterprise peopletools | İncele |
| 22 | debian | debian linux | İncele |
| 23 | debian | debian linux | İncele |
RED HAT CSAF/VEX — Ürün Etki Kontrolü
SCORING — CVSS Çoklu Kaynak Skoru
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from various sources for each CVE.
| SCORE | VERSION | SEVERITY | VECTOR | SOURCE |
|---|---|---|---|---|
| 6.5 | CVSS V31 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N | NVD |
| 6.5 | CVSS V3_1 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N | CVE CNA |
| 4.3 | CVSS V2 | — | AV:N/AC:M/Au:N/C:N/I:P/A:N | NVD |
Yama ve İyileştirme Rehberi (Solution)
Solution & Remediation Advisory
3 doğrulanmış yama veya düzeltilmiş sürüm kanıtı bulundu.
Public exploit ve aktif sömürü durumu
Doğrulanmış exploit istihbaratı
Bu CVE için henüz doğrulanmış public PoC, exploit repository’si veya Metasploit modülü bulunamadı.
Zafiyet Dağılımı ve Saldırı Kalıpları (CWE & CAPEC)
CWE - Common Weakness Enumeration
While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-43797 is associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2021-43797 weaknesses.
Saldırı Vektörü ve Erişilebilirlik Karakteristiği
Resmi Kaynaklar ve Danışma Bültenleri
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Bu açığı API ile alın
Etkilenen ürünler, sürüm aralıkları, istismar durumu ve yama bilgisi tek istekte; ücretsiz anahtarla.
curl -H "x-api-key: $DAYBREACH_API_KEY" \ "https://api.enginteksut.com.tr/api/v1/intel/cves/CVE-2021-43797"