Executive Summary



This Alert is flagged as TOP 25 Common Weakness Enumeration from CWE/SANS. For more information, you can read this.
Informations
Name CVE-2021-40346 First vendor Publication 2021-09-08
Vendor Cve Last vendor Modification 2021-09-17

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

An integer overflow exists in HAProxy 2.0 through 2.5 in htx_add_header that can be exploited to perform an HTTP request smuggling attack, allowing an attacker to bypass all configured http-request HAProxy ACLs and possibly other ACLs.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-40346

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-190 Integer Overflow or Wraparound (CWE/SANS Top 25)

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 93
Os 1

Sources (Detail)

Source Url
DEBIAN https://www.debian.org/security/2021/dsa-4968
FEDORA https://lists.fedoraproject.org/archives/list/package-announce@lists.fedorapr...
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedorapr...
MISC https://git.haproxy.org/?p=haproxy.git
https://github.com/haproxy/haproxy/commit/3b69886f7dcc3cfb3d166309018e6cfec9c...
https://jfrog.com/blog/critical-vulnerability-in-haproxy-cve-2021-40346-integ...
https://www.mail-archive.com/haproxy@formilux.org
https://www.mail-archive.com/haproxy@formilux.org/msg41114.html
MLIST https://lists.apache.org/thread.html/r284567dd7523f5823e2ce995f787ccd37b1cc41...
https://lists.apache.org/thread.html/r8a58fd7a29808e5d27ee56877745e58dc4bb041...

Alert History

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Date Informations
2021-09-18 05:22:51
  • Multiple Updates
2021-09-17 00:22:57
  • Multiple Updates
2021-09-15 09:23:03
  • Multiple Updates
2021-09-10 21:23:11
  • Multiple Updates
2021-09-09 21:22:46
  • Multiple Updates
2021-09-09 00:22:53
  • Multiple Updates
2021-09-08 21:23:14
  • First insertion