CVE-2019-18978
Apache Rack CORS Middleware Directory Traversal Vulnerability
Description
An issue was discovered in the rack-cors (aka Rack CORS Middleware) gem before 1.0.4 for Ruby. It allows ../ directory traversal to access private resources because resource matching does not ensure that pathnames are in a canonical format.
INFO
Published Date :
Nov. 14, 2019, 9:15 p.m.
Last Modified :
May 21, 2021, 4:47 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
1.4
Exploitability Score :
3.9
Affected Products
The following products are affected by CVE-2019-18978
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-2019-18978.
| URL | Resource |
|---|---|
| https://github.com/cyu/rack-cors/commit/e4d4fc362a4315808927011cbe5afcfe5486f17d | Patch Third Party Advisory |
| https://github.com/cyu/rack-cors/compare/v1.0.3...v1.0.4 | Patch Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2020/02/msg00004.html | Mailing List Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2020/10/msg00000.html | Mailing List Third Party Advisory |
| https://usn.ubuntu.com/4571-1/ | Third Party Advisory |
| https://www.debian.org/security/2021/dsa-4918 | Third Party Advisory |
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).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2019-18978 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2019-18978 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 -
Modified Analysis by [email protected]
May. 21, 2021
Action Type Old Value New Value Changed Reference Type https://github.com/cyu/rack-cors/commit/e4d4fc362a4315808927011cbe5afcfe5486f17d Patch https://github.com/cyu/rack-cors/commit/e4d4fc362a4315808927011cbe5afcfe5486f17d Patch, Third Party Advisory Changed Reference Type https://github.com/cyu/rack-cors/compare/v1.0.3...v1.0.4 Patch https://github.com/cyu/rack-cors/compare/v1.0.3...v1.0.4 Patch, Third Party Advisory Changed Reference Type https://lists.debian.org/debian-lts-announce/2020/02/msg00004.html No Types Assigned https://lists.debian.org/debian-lts-announce/2020/02/msg00004.html Mailing List, Third Party Advisory Changed Reference Type https://lists.debian.org/debian-lts-announce/2020/10/msg00000.html No Types Assigned https://lists.debian.org/debian-lts-announce/2020/10/msg00000.html Mailing List, Third Party Advisory Changed Reference Type https://usn.ubuntu.com/4571-1/ No Types Assigned https://usn.ubuntu.com/4571-1/ Third Party Advisory Changed Reference Type https://www.debian.org/security/2021/dsa-4918 No Types Assigned https://www.debian.org/security/2021/dsa-4918 Third Party Advisory Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* *cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* *cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:* -
CVE Modified by [email protected]
May. 19, 2021
Action Type Old Value New Value Added Reference https://www.debian.org/security/2021/dsa-4918 [No Types Assigned] -
CVE Modified by [email protected]
Oct. 14, 2020
Action Type Old Value New Value Added Reference https://usn.ubuntu.com/4571-1/ [No Types Assigned] -
CVE Modified by [email protected]
Oct. 01, 2020
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2020/10/msg00000.html [No Types Assigned] -
CVE Modified by [email protected]
Feb. 06, 2020
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2020/02/msg00004.html [No Types Assigned] -
Initial Analysis by [email protected]
Nov. 18, 2019
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:N/A:N) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N Changed Reference Type https://github.com/cyu/rack-cors/commit/e4d4fc362a4315808927011cbe5afcfe5486f17d No Types Assigned https://github.com/cyu/rack-cors/commit/e4d4fc362a4315808927011cbe5afcfe5486f17d Patch Changed Reference Type https://github.com/cyu/rack-cors/compare/v1.0.3...v1.0.4 No Types Assigned https://github.com/cyu/rack-cors/compare/v1.0.3...v1.0.4 Patch Added CWE NIST CWE-22 Added CPE Configuration OR *cpe:2.3:a:rack-cors_project:rack-cors:*:*:*:*:*:ruby:*:* versions up to (excluding) 1.0.4
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2019-18978 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-2019-18978
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.44 }} 0.16%
score
0.75299
percentile