Executive Summary

Informations
Name CVE-2020-13935 First vendor Publication 2020-07-14
Vendor Cve Last vendor Modification 2021-01-20

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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 None Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:N/I:N/A:P)
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

The payload length in a WebSocket frame was not correctly validated in Apache Tomcat 10.0.0-M1 to 10.0.0-M6, 9.0.0.M1 to 9.0.36, 8.5.0 to 8.5.56 and 7.0.27 to 7.0.104. Invalid payload lengths could trigger an infinite loop. Multiple requests with invalid payload lengths could lead to a denial of service.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-13935

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 523

Snort® IPS/IDS

Date Description
2020-11-24 Apache Tomcat WebSocket length denial of service attempt
RuleID : 56086 - Revision : 1 - Type : SERVER-WEBAPP

Sources (Detail)

Source Url
CONFIRM https://kc.mcafee.com/corporate/index?page=content&id=SB10332
https://security.netapp.com/advisory/ntap-20200724-0003/
DEBIAN https://www.debian.org/security/2020/dsa-4727
MISC https://lists.apache.org/thread.html/rd48c72bd3255bda87564d4da3791517c074d94f...
https://www.oracle.com/security-alerts/cpujan2021.html
https://www.oracle.com/security-alerts/cpuoct2020.html
MLIST https://lists.apache.org/thread.html/r4e5d3c09f4dd2923191e972408b40fb8b42dbff...
https://lists.debian.org/debian-lts-announce/2020/07/msg00017.html
SUSE http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00084.html
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00088.html
UBUNTU https://usn.ubuntu.com/4448-1/
https://usn.ubuntu.com/4596-1/

Alert History

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Date Informations
2021-05-05 01:38:35
  • Multiple Updates
2021-05-04 13:49:14
  • Multiple Updates
2021-04-22 02:59:54
  • Multiple Updates
2021-01-20 21:23:21
  • Multiple Updates
2020-12-08 01:29:06
  • Multiple Updates
2020-11-24 21:23:13
  • Multiple Updates
2020-11-19 09:22:53
  • Multiple Updates
2020-10-28 00:22:56
  • Multiple Updates
2020-10-27 00:23:12
  • Multiple Updates
2020-10-21 05:23:02
  • Multiple Updates
2020-10-14 13:22:46
  • Multiple Updates
2020-08-11 05:22:50
  • Multiple Updates
2020-07-30 05:22:48
  • Multiple Updates
2020-07-28 09:22:46
  • Multiple Updates
2020-07-24 21:23:01
  • Multiple Updates
2020-07-23 00:22:46
  • Multiple Updates
2020-07-18 21:23:04
  • Multiple Updates
2020-07-17 21:23:08
  • Multiple Updates
2020-07-14 21:23:05
  • First insertion