The version of ruby24 installed on the remote host is prior to 2.4.10-2.12. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS-2020-1422 advisory.

    Ruby through 2.4.7, 2.5.x through 2.5.6, and 2.6.x through 2.6.4 allows HTTP Response Splitting. If a     program using WEBrick inserts untrusted input into the response header, an attacker can exploit it to     insert a newline character to split a header, and inject malicious content to deceive clients. NOTE: this     issue exists because of an incomplete fix forCVE-2017-17742, which addressed the CRLF vector, but did not     address an isolated CR or an isolated LF. (CVE-2019-16254)

    Ruby through 2.4.7, 2.5.x through 2.5.6, and 2.6.x through 2.6.4 allows code injection if the first     argument (aka the command argument) to Shell#[] or Shell#test in lib/shell.rb is untrusted data. An     attacker can exploit this to call an arbitrary Ruby method. (CVE-2019-16255)

    jQuery before 3.0.0 is vulnerable to Cross-site Scripting (XSS) attacks when a cross-domain Ajax request     is performed without the dataType option, causing text/javascript responses to be executed.
    (CVE-2015-9251)

    The JSON gem through 2.2.0 for Ruby, as used in Ruby 2.4 through 2.4.9, 2.5 through 2.5.7, and 2.6 through     2.6.5, has an Unsafe Object Creation Vulnerability. This is quite similar toCVE-2013-0269, but does not     rely on poor garbage-collection behavior within Ruby. Specifically, use of JSON parsing methods can lead     to creation of a malicious object within the interpreter, with adverse effects that are application-     dependent. (CVE-2020-10663)

    jQuery before 1.9.0 is vulnerable to Cross-site Scripting (XSS) attacks. The jQuery(strInput) function     does not differentiate selectors from HTML in a reliable fashion. In vulnerable versions, jQuery     determined whether the input was HTML by looking for the '<' character anywhere in the string, giving     attackers more flexibility when attempting to construct a malicious payload. In fixed versions, jQuery     only deems the input to be HTML if it explicitly starts with the '<' character, limiting exploitability     only to attackers who can control the beginning of a string, which is far less common. (CVE-2012-6708)

    WEBrick::HTTPAuth::DigestAuth in Ruby through 2.4.7, 2.5.x through 2.5.6, and 2.6.x through 2.6.4 has a     regular expression Denial of Service cause by looping/backtracking. A victim must expose a WEBrick server     that uses DigestAuth to the Internet or a untrusted network. (CVE-2019-16201)

    Ruby through 2.4.7, 2.5.x through 2.5.6, and 2.6.x through 2.6.4 mishandles path checking within     File.fnmatch functions. A flaw was discovered in Ruby in the way certain functions handled strings     containing NULL bytes. Specifically, the built-in methods File.fnmatch and its alias File.fnmatch? did not     properly handle path patterns containing the NULL byte. A remote attacker could exploit this flaw to make     a Ruby script access unexpected files and to bypass intended file system access restrictions.
    (CVE-2019-15845)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

In ruby-json before 2.3.0, there is an unsafe object creation vulnerability. When parsing certain JSON documents, the json gem (including the one bundled with Ruby) can be coerced into creating arbitrary objects in the target system.

For Debian 8 'Jessie', this problem has been fixed in version 1.8.1-1+deb8u1.

We recommend that you upgrade your ruby-json packages.

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

A security flaw was found on rubygem-json prior to 2.3.0 which was now assigned as CVE-2020-10663. This new rpm contains backport fixes for this issue.

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

This update for ruby2.5 to version 2.5.8 fixes the following issues :

  - CVE-2020-10663: Unsafe Object Creation Vulnerability in     JSON (bsc#1167244).

  - CVE-2020-10933: Heap exposure vulnerability in the     socket library (bsc#1168938).

This update was imported from the SUSE:SLE-15:Update update project.

An update of the ruby package has been released.

According to the version of the ruby packages installed, the EulerOS installation on the remote host is affected by the following vulnerability :

  - The JSON gem through 2.2.0 for Ruby, as used in Ruby     2.4 through 2.4.9, 2.5 through 2.5.7, and 2.6 through     2.6.5, has an Unsafe Object Creation Vulnerability.
    This is quite similar to CVE-2013-0269, but does not     rely on poor garbage-collection behavior within Ruby.
    Specifically, use of JSON parsing methods can lead to     creation of a malicious object within the interpreter,     with adverse effects that are     application-dependent.(CVE-2020-10663)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2020:2670 advisory.

    The pcs packages provide a command-line configuration system for the Pacemaker and Corosync utilities.

    Security Fix(es):

    * rubygem-json: Unsafe Object Creation Vulnerability in JSON (CVE-2020-10663)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

    Bug Fix(es):

    * [GUI] Colocation constraint can't be added (BZ#1840157)

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

According to the versions of the ruby packages installed, the EulerOS Virtualization for ARM 64 installation on the remote host is affected by the following vulnerabilities :

  - The JSON gem through 2.2.0 for Ruby, as used in Ruby     2.4 through 2.4.9, 2.5 through 2.5.7, and 2.6 through     2.6.5, has an Unsafe Object Creation Vulnerability.
    This is quite similar to CVE-2013-0269, but does not     rely on poor garbage-collection behavior within Ruby.
    Specifically, use of JSON parsing methods can lead to     creation of a malicious object within the interpreter,     with adverse effects that are     application-dependent.(CVE-2020-10663)

  - There is an OS command injection vulnerability in Ruby     Rake < 12.3.3 in Rake::FileList when supplying a     filename that begins with the pipe character     `|`.(CVE-2020-8130)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - The JSON gem through 2.2.0 for Ruby, as used in Ruby 2.4 through 2.4.9, 2.5 through 2.5.7, and 2.6 through     2.6.5, has an Unsafe Object Creation Vulnerability. This is quite similar to CVE-2013-0269, but does not     rely on poor garbage-collection behavior within Ruby. Specifically, use of JSON parsing methods can lead     to creation of a malicious object within the interpreter, with adverse effects that are application-     dependent. (CVE-2020-10663)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Published	Updated	Severity
140096	Amazon Linux AMI : ruby24 (ALAS-2020-1422)	Nessus	Amazon Linux Local Security Checks	8/31/2020	12/17/2024	high
136067	Debian DLA-2190-1 : ruby-json security update	Nessus	Debian Local Security Checks	4/29/2020	3/14/2024	high
136301	Fedora 30 : rubygem-json (2020-d171bf636d)	Nessus	Fedora Local Security Checks	5/4/2020	3/13/2024	high
136309	openSUSE Security Update : ruby2.5 (openSUSE-2020-586)	Nessus	SuSE Local Security Checks	5/4/2020	3/13/2024	high
136581	Photon OS 3.0: Ruby PHSA-2020-3.0-0089	Nessus	PhotonOS Local Security Checks	5/13/2020	8/22/2025	high
137528	EulerOS 2.0 SP2 : ruby (EulerOS-SA-2020-1686)	Nessus	Huawei Local Security Checks	6/17/2020	3/6/2024	high
137831	RHEL 8 : pcs (RHSA-2020:2670)	Nessus	Red Hat Local Security Checks	6/25/2020	11/7/2024	high
140325	EulerOS Virtualization for ARM 64 3.0.2.0 : ruby (EulerOS-SA-2020-1955)	Nessus	Huawei Local Security Checks	9/8/2020	2/21/2024	high
223025	Linux Distros Unpatched Vulnerability : CVE-2020-10663	Nessus	Misc.	3/4/2025	7/18/2026	high

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