Executive Summary

Informations
Name CVE-2021-33193 First vendor Publication 2021-08-16
Vendor Cve Last vendor Modification 2021-10-19

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Overall CVSS Score 7.5
Base Score 7.5 Environmental Score 7.5
impact SubScore 3.6 Temporal Score 7.5
Exploitabality Sub Score 3.9
 
Attack Vector Network Attack Complexity Low
Privileges Required None User Interaction None
Scope Unchanged Confidentiality Impact None
Integrity Impact High Availability Impact None
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:N/I:P/A:N)
Cvss Base Score 5 Attack Range Network
Cvss Impact Score 2.9 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

A crafted method sent through HTTP/2 will bypass validation and be forwarded by mod_proxy, which can lead to request splitting or cache poisoning. This issue affects Apache HTTP Server 2.4.17 to 2.4.48.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-33193

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 249

Sources (Detail)

Source Url
CONFIRM https://security.netapp.com/advisory/ntap-20210917-0004/
https://www.tenable.com/security/tns-2021-17
FEDORA https://lists.fedoraproject.org/archives/list/package-announce@lists.fedorapr...
MISC https://github.com/apache/httpd/commit/ecebcc035ccd8d0e2984fe41420d9e944f456b...
https://portswigger.net/research/http2
MLIST https://lists.apache.org/thread.html/re4162adc051c1a0a79e7a24093f3776373e8733...
https://lists.apache.org/thread.html/ree7519d71415ecdd170ff1889cab552d71758d2...

Alert History

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Date Informations
2021-10-20 00:23:09
  • Multiple Updates
2021-10-08 00:23:07
  • Multiple Updates
2021-09-20 17:23:04
  • Multiple Updates
2021-09-18 05:23:03
  • Multiple Updates
2021-09-16 21:23:33
  • Multiple Updates
2021-08-24 17:22:55
  • Multiple Updates
2021-08-16 17:22:49
  • Multiple Updates
2021-08-16 13:22:49
  • First insertion