CVE-2018-8777
Apache WEBrick HTTP Request Denial of Service
Description
In Ruby before 2.2.10, 2.3.x before 2.3.7, 2.4.x before 2.4.4, 2.5.x before 2.5.1, and 2.6.0-preview1, an attacker can pass a large HTTP request with a crafted header to WEBrick server or a crafted body to WEBrick server/handler and cause a denial of service (memory consumption).
INFO
Published Date :
April 3, 2018, 10:29 p.m.
Last Modified :
July 21, 2019, 12:15 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
3.9
Public PoC/Exploit Available at Github
CVE-2018-8777 has a 1 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
Affected Products
The following products are affected by CVE-2018-8777
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2018-8777.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Map Vulnerabilities into Different Layers of the Container Image
Python
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2018-8777 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2018-8777 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Mar. 03, 2020
Action Type Old Value New Value Added Reference https://access.redhat.com/errata/RHSA-2020:0663 [No Types Assigned] -
CVE Modified by [email protected]
Feb. 25, 2020
Action Type Old Value New Value Added Reference https://access.redhat.com/errata/RHSA-2020:0591 [No Types Assigned] -
CVE Modified by [email protected]
Feb. 18, 2020
Action Type Old Value New Value Added Reference https://access.redhat.com/errata/RHSA-2020:0542 [No Types Assigned] -
CVE Modified by [email protected]
Aug. 06, 2019
Action Type Old Value New Value Added Reference https://access.redhat.com/errata/RHSA-2019:2028 [No Types Assigned] -
CVE Modified by [email protected]
Jul. 21, 2019
Action Type Old Value New Value Added Reference http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00036.html [No Types Assigned] -
CPE Deprecation Remap by [email protected]
Apr. 22, 2019
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:o:redhat:enterprise_linux:6:*:*:*:*:*:*:* OR *cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:* -
Modified Analysis by [email protected]
Mar. 05, 2019
Action Type Old Value New Value Changed Reference Type https://access.redhat.com/errata/RHSA-2018:3729 No Types Assigned https://access.redhat.com/errata/RHSA-2018:3729 Third Party Advisory Changed Reference Type https://usn.ubuntu.com/3685-1/ No Types Assigned https://usn.ubuntu.com/3685-1/ Third Party Advisory Changed Reference Type https://lists.debian.org/debian-lts-announce/2018/07/msg00012.html No Types Assigned https://lists.debian.org/debian-lts-announce/2018/07/msg00012.html Mailing List, Third Party Advisory Changed Reference Type https://www.debian.org/security/2018/dsa-4259 No Types Assigned https://www.debian.org/security/2018/dsa-4259 Third Party Advisory Changed Reference Type https://lists.debian.org/debian-lts-announce/2018/04/msg00024.html Third Party Advisory https://lists.debian.org/debian-lts-announce/2018/04/msg00024.html Mailing List, Third Party Advisory Changed Reference Type http://www.securitytracker.com/id/1042004 No Types Assigned http://www.securitytracker.com/id/1042004 Third Party Advisory, VDB Entry Changed Reference Type https://access.redhat.com/errata/RHSA-2018:3731 No Types Assigned https://access.redhat.com/errata/RHSA-2018:3731 Third Party Advisory Changed Reference Type https://access.redhat.com/errata/RHSA-2018:3730 No Types Assigned https://access.redhat.com/errata/RHSA-2018:3730 Third Party Advisory Removed CWE CWE-399 Added CWE CWE-400 Changed CPE Configuration OR *cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:* OR *cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:* *cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* *cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:o:redhat:enterprise_linux:6:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux:7.4:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux:7.5:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux:7.6:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Nov. 30, 2018
Action Type Old Value New Value Added Reference https://access.redhat.com/errata/RHSA-2018:3731 [No Types Assigned] Added Reference https://access.redhat.com/errata/RHSA-2018:3730 [No Types Assigned] Added Reference https://access.redhat.com/errata/RHSA-2018:3729 [No Types Assigned] -
CVE Modified by [email protected]
Oct. 31, 2018
Action Type Old Value New Value Added Reference http://www.securitytracker.com/id/1042004 [No Types Assigned] -
CVE Modified by [email protected]
Aug. 03, 2018
Action Type Old Value New Value Added Reference https://www.debian.org/security/2018/dsa-4259 [No Types Assigned] -
CVE Modified by [email protected]
Jul. 15, 2018
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2018/07/msg00012.html [No Types Assigned] -
CVE Modified by [email protected]
Jun. 16, 2018
Action Type Old Value New Value Added Reference https://usn.ubuntu.com/3685-1/ [No Types Assigned] -
Initial Analysis by [email protected]
May. 15, 2018
Action Type Old Value New Value Added CVSS V2 (AV:N/AC:L/Au:N/C:N/I:N/A:P) Added CVSS V3 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://www.ruby-lang.org/en/news/2018/03/28/ruby-2-4-4-released/ No Types Assigned https://www.ruby-lang.org/en/news/2018/03/28/ruby-2-4-4-released/ Patch, Vendor Advisory Changed Reference Type http://www.securityfocus.com/bid/103683 No Types Assigned http://www.securityfocus.com/bid/103683 Third Party Advisory, VDB Entry Changed Reference Type https://lists.debian.org/debian-lts-announce/2018/04/msg00023.html No Types Assigned https://lists.debian.org/debian-lts-announce/2018/04/msg00023.html Third Party Advisory Changed Reference Type https://www.ruby-lang.org/en/news/2018/03/28/ruby-2-2-10-released/ No Types Assigned https://www.ruby-lang.org/en/news/2018/03/28/ruby-2-2-10-released/ Patch, Vendor Advisory Changed Reference Type https://lists.debian.org/debian-lts-announce/2018/04/msg00024.html No Types Assigned https://lists.debian.org/debian-lts-announce/2018/04/msg00024.html Third Party Advisory Changed Reference Type https://www.ruby-lang.org/en/news/2018/03/28/ruby-2-3-7-released/ No Types Assigned https://www.ruby-lang.org/en/news/2018/03/28/ruby-2-3-7-released/ Patch, Vendor Advisory Changed Reference Type https://www.ruby-lang.org/en/news/2018/03/28/large-request-dos-in-webrick-cve-2018-8777/ No Types Assigned https://www.ruby-lang.org/en/news/2018/03/28/large-request-dos-in-webrick-cve-2018-8777/ Vendor Advisory Changed Reference Type https://www.ruby-lang.org/en/news/2018/03/28/ruby-2-5-1-released/ No Types Assigned https://www.ruby-lang.org/en/news/2018/03/28/ruby-2-5-1-released/ Patch, Vendor Advisory Added CWE CWE-399 Added CPE Configuration OR *cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:* versions from (including) 2.2.0 up to (excluding) 2.2.10 *cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:* versions from (including) 2.3.0 up to (excluding) 2.3.7 *cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:* versions from (including) 2.4.0 up to (excluding) 2.4.4 *cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:* versions from (including) 2.5.0 up to (excluding) 2.5.1 *cpe:2.3:a:ruby-lang:ruby:2.6.0:preview1:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Apr. 25, 2018
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2018/04/msg00024.html [No Types Assigned] Added Reference https://lists.debian.org/debian-lts-announce/2018/04/msg00023.html [No Types Assigned] -
CVE Modified by [email protected]
Apr. 07, 2018
Action Type Old Value New Value Added Reference http://www.securityfocus.com/bid/103683 [No Types Assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2018-8777 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-2018-8777
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.76 }} 0.01%
score
0.81258
percentile