CVE-2019-5477
"Nokogiri Command Injection Vulnerability"
Description
A command injection vulnerability in Nokogiri v1.10.3 and earlier allows commands to be executed in a subprocess via Ruby's `Kernel.open` method. Processes are vulnerable only if the undocumented method `Nokogiri::CSS::Tokenizer#load_file` is being called with unsafe user input as the filename. This vulnerability appears in code generated by the Rexical gem versions v1.0.6 and earlier. Rexical is used by Nokogiri to generate lexical scanner code for parsing CSS queries. The underlying vulnerability was addressed in Rexical v1.0.7 and Nokogiri upgraded to this version of Rexical in Nokogiri v1.10.4.
INFO
Published Date :
Aug. 16, 2019, 4:15 p.m.
Last Modified :
Nov. 21, 2024, 4:45 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2019-5477
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.
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 2.0 | HIGH | [email protected] | ||||
| CVSS 3.1 | CRITICAL | [email protected] |
Solution
- Update the ruby-nokogiri packages.
- Update the Nokogiri package to version 1.10.4 or later.
Public PoC/Exploit Available at Github
CVE-2019-5477 has a 1 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
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-2019-5477.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2019-5477 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-2019-5477
weaknesses.
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).
A personal list of various resources for those who are interested in learning about infosec and hacking and keeping themselves up to date. This is by no means a complete nor fresh list, but I occasionally add entries to lists.
hacking infosec security
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2019-5477 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2019-5477 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 af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://github.com/sparklemotion/nokogiri/issues/1915 Added Reference https://github.com/tenderlove/rexical/blob/master/CHANGELOG.rdoc Added Reference https://hackerone.com/reports/650835 Added Reference https://lists.debian.org/debian-lts-announce/2019/09/msg00027.html Added Reference https://lists.debian.org/debian-lts-announce/2022/10/msg00018.html Added Reference https://lists.debian.org/debian-lts-announce/2022/10/msg00019.html Added Reference https://security.gentoo.org/glsa/202006-05 Added Reference https://usn.ubuntu.com/4175-1/ -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Modified Analysis by [email protected]
Oct. 14, 2022
Action Type Old Value New Value Changed Reference Type https://lists.debian.org/debian-lts-announce/2022/10/msg00018.html No Types Assigned https://lists.debian.org/debian-lts-announce/2022/10/msg00018.html Mailing List, Third Party Advisory Changed Reference Type https://lists.debian.org/debian-lts-announce/2022/10/msg00019.html No Types Assigned https://lists.debian.org/debian-lts-announce/2022/10/msg00019.html Mailing List, Third Party Advisory Changed CPE Configuration OR *cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* OR *cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* *cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Oct. 12, 2022
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2022/10/msg00018.html [No Types Assigned] Added Reference https://lists.debian.org/debian-lts-announce/2022/10/msg00019.html [No Types Assigned] -
Modified Analysis by [email protected]
Oct. 16, 2020
Action Type Old Value New Value Changed Reference Type https://lists.debian.org/debian-lts-announce/2019/09/msg00027.html No Types Assigned https://lists.debian.org/debian-lts-announce/2019/09/msg00027.html Mailing List, Third Party Advisory Changed Reference Type https://security.gentoo.org/glsa/202006-05 No Types Assigned https://security.gentoo.org/glsa/202006-05 Third Party Advisory Changed Reference Type https://usn.ubuntu.com/4175-1/ No Types Assigned https://usn.ubuntu.com/4175-1/ Third Party Advisory Removed CWE NIST CWE-77 Added CWE NIST CWE-78 Added CPE Configuration OR *cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Jun. 13, 2020
Action Type Old Value New Value Added Reference https://security.gentoo.org/glsa/202006-05 [No Types Assigned] -
CVE Modified by [email protected]
Nov. 13, 2019
Action Type Old Value New Value Added Reference https://usn.ubuntu.com/4175-1/ [No Types Assigned] -
CVE Modified by [email protected]
Oct. 09, 2019
Action Type Old Value New Value Added CWE HackerOne CWE-78 -
CVE Modified by [email protected]
Sep. 26, 2019
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2019/09/msg00027.html [No Types Assigned] -
Reanalysis by [email protected]
Sep. 09, 2019
Action Type Old Value New Value Removed CVSS V3 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Changed CPE Configuration OR *cpe:2.3:a:nokogiri_project:nokogiri:*:*:*:*:*:*:*:* versions up to (including) 1.10.3 OR *cpe:2.3:a:nokogiri:nokogiri:*:*:*:*:*:*:*:* versions up to (including) 1.10.3 -
Initial Analysis by [email protected]
Aug. 29, 2019
Action Type Old Value New Value Added CVSS V2 (AV:N/AC:L/Au:N/C:P/I:P/A:P) Added CVSS V3 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://github.com/sparklemotion/nokogiri/issues/1915 No Types Assigned https://github.com/sparklemotion/nokogiri/issues/1915 Patch, Third Party Advisory Changed Reference Type https://github.com/tenderlove/rexical/blob/master/CHANGELOG.rdoc No Types Assigned https://github.com/tenderlove/rexical/blob/master/CHANGELOG.rdoc Release Notes Changed Reference Type https://hackerone.com/reports/650835 No Types Assigned https://hackerone.com/reports/650835 Permissions Required Added CWE CWE-77 Added CPE Configuration OR *cpe:2.3:a:nokogiri_project:nokogiri:*:*:*:*:*:*:*:* versions up to (including) 1.10.3
Vulnerability Scoring Details
Base CVSS Score: 9.8
Base CVSS Score: 7.5
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
1.31 }} 0.04%
score
0.78936
percentile