Debian DSA-3509-1 : rails - security update - Nessus
High Plugin ID: 89791This page contains detailed information about the Debian DSA-3509-1 : rails - security update Nessus plugin including available exploits and PoCs found on GitHub, in Metasploit or Exploit-DB for verifying of this vulnerability.
Plugin Overview
ID: 89791
Name: Debian DSA-3509-1 : rails - security update
Filename: debian_DSA-3509.nasl
Vulnerability Published: N/A
This Plugin Published: 2016-03-10
Last Modification Time: 2021-01-11
Plugin Version: 2.15
Plugin Type: local
Plugin Family: Debian Local Security Checks
Dependencies:
ssh_get_info.nasl
Required KB Items [?]: Host/Debian/dpkg-l, Host/Debian/release, Host/local_checks_enabled
Vulnerability Information
Severity: High
Vulnerability Published: N/A
Patch Published: 2016-03-09
CVE [?]: CVE-2016-2097, CVE-2016-2098
CPE [?]: cpe:/o:debian:debian_linux:8.0, p-cpe:/a:debian:debian_linux:rails
Synopsis
The remote Debian host is missing a security-related update.
Description
Two vulnerabilities have been discovered in Rails, a web application framework written in Ruby. Both vulnerabilities affect Action Pack, which handles the web requests for Rails.
- CVE-2016-2097 Crafted requests to Action View, one of the components of Action Pack, might result in rendering files from arbitrary locations, including files beyond the application's view directory. This vulnerability is the result of an incomplete fix of CVE-2016-0752. This bug was found by Jyoti Singh and Tobias Kraze from Makandra.
- CVE-2016-2098 If a web applications does not properly sanitize user inputs, an attacker might control the arguments of the render method in a controller or a view, resulting in the possibility of executing arbitrary ruby code. This bug was found by Tobias Kraze from Makandra and joernchen of Phenoelit.
Solution
Upgrade the rails packages.
For the stable distribution (jessie), these problems have been fixed in version 2:4.1.8-1+deb8u2.
Public Exploits
Target Network Port(s): N/A
Target Asset(s): N/A
Exploit Available: True (Metasploit Framework, Exploit-DB, GitHub, Immunity Canvas, Core Impact)
Exploit Ease: Exploits are available
Here's the list of publicly known exploits and PoCs for verifying the Debian DSA-3509-1 : rails - security update vulnerability:
- Metasploit: exploit/multi/http/rails_actionpack_inline_exec
[Ruby on Rails ActionPack Inline ERB Code Execution] - Exploit-DB: exploits/ruby/remote/40086.rb
[EDB-40086: Ruby on Rails ActionPack Inline ERB - Code Execution (Metasploit)] - GitHub: https://github.com/0x00-0x00/CVE-2016-2098
[CVE-2016-2098: Ruby On Rails unrestricted render() exploit] - GitHub: https://github.com/3rg1s/CVE-2016-2098
[CVE-2016-2098] - GitHub: https://github.com/CyberDefenseInstitute/PoC_CVE-2016-2098_Rails42
[CVE-2016-2098: A PoC of CVE-2016-2098 (rails4.2.5.1 / view render)] - GitHub: https://github.com/DanielCodex/CVE-2016-2098-my-first-exploit
[CVE-2016-2098: This exploit is remote code execution vulnerability in Ruby-on-Rails when using ...] - GitHub: https://github.com/RyouYoo/CVE-2016-2098
[CVE-2016-2098: Remote code execution vulnerability in Ruby-on-Rails when using render on ...] - GitHub: https://github.com/danielhemmati/CVE-2016-2098-my-first-exploit
[CVE-2016-2098: This exploit is remote code execution vulnerability in Ruby-on-Rails when using ...] - GitHub: https://github.com/hderms/dh-CVE_2016_2098
[CVE-2016-2098: Proof of concept showing how CVE-2016-2098 leads to remote code execution] - GitHub: https://github.com/its-arun/CVE-2016-2098
[CVE-2016-2098: CVE-2016-2098 simple POC written in bash] - GitHub: https://github.com/j4k0m/CVE-2016-2098
[CVE-2016-2098: Remote code execution vulnerability in Ruby-on-Rails when using render on ...] - GitHub: https://github.com/Alejandro-MartinG/rails-PoC-CVE-2016-2098
[CVE-2016-2098: Proof of concept CVE-2016-2098] - GitHub: https://github.com/Debalinax64/CVE-2016-2098
[CVE-2016-2098: CVE-2016-2098 - POC of RCE Ruby on Rails: Improper Input Validation (CVE-2016-2098) ...] - Immunity Canvas: CANVAS
Before running any exploit against any system, make sure you are authorized by the owner of the target system(s) to perform such activity. In any other case, this would be considered as an illegal activity.
WARNING: Beware of using unverified exploits from sources such as GitHub or Exploit-DB. These exploits and PoCs could contain malware. For more information, see how to use exploits safely.
Risk Information
CVSS V2 Vector [?]: AV:N/AC:L/Au:N/C:P/I:P/A:P/E:F/RL:OF/RC:C
CVSS Base Score: | 7.5 (High) |
Impact Subscore: | 6.4 |
Exploitability Subscore: | 10.0 |
CVSS Temporal Score: | 6.2 (Medium) |
CVSS Environmental Score: | NA (None) |
Modified Impact Subscore: | NA |
Overall CVSS Score: | 6.2 (Medium) |
CVSS Base Score: | 7.3 (High) |
Impact Subscore: | 3.4 |
Exploitability Subscore: | 3.9 |
CVSS Temporal Score: | 6.8 (Medium) |
CVSS Environmental Score: | NA (None) |
Modified Impact Subscore: | NA |
Overall CVSS Score: | 6.8 (Medium) |
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Plugin Source
This is the debian_DSA-3509.nasl nessus plugin source code. This script is Copyright (C) 2016-2021 and is owned by Tenable, Inc. or an Affiliate thereof.
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory DSA-3509. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(89791);
script_version("2.15");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/11");
script_cve_id("CVE-2016-2097", "CVE-2016-2098");
script_xref(name:"DSA", value:"3509");
script_name(english:"Debian DSA-3509-1 : rails - security update");
script_summary(english:"Checks dpkg output for the updated package");
script_set_attribute(
attribute:"synopsis",
value:"The remote Debian host is missing a security-related update."
);
script_set_attribute(
attribute:"description",
value:
"Two vulnerabilities have been discovered in Rails, a web application
framework written in Ruby. Both vulnerabilities affect Action Pack,
which handles the web requests for Rails.
- CVE-2016-2097
Crafted requests to Action View, one of the components
of Action Pack, might result in rendering files from
arbitrary locations, including files beyond the
application's view directory. This vulnerability is the
result of an incomplete fix of CVE-2016-0752. This bug
was found by Jyoti Singh and Tobias Kraze from Makandra.
- CVE-2016-2098
If a web applications does not properly sanitize user
inputs, an attacker might control the arguments of the
render method in a controller or a view, resulting in
the possibility of executing arbitrary ruby code. This
bug was found by Tobias Kraze from Makandra and
joernchen of Phenoelit."
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2016-2097"
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2016-0752"
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2016-2098"
);
script_set_attribute(
attribute:"see_also",
value:"https://packages.debian.org/source/jessie/rails"
);
script_set_attribute(
attribute:"see_also",
value:"https://www.debian.org/security/2016/dsa-3509"
);
script_set_attribute(
attribute:"solution",
value:
"Upgrade the rails packages.
For the stable distribution (jessie), these problems have been fixed
in version 2:4.1.8-1+deb8u2."
);
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
script_set_cvss_temporal_vector("CVSS2#E:F/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L");
script_set_cvss3_temporal_vector("CVSS:3.0/E:F/RL:O/RC:C");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"exploit_framework_core", value:"true");
script_set_attribute(attribute:"metasploit_name", value:'Ruby on Rails ActionPack Inline ERB Code Execution');
script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");
script_set_attribute(attribute:"exploit_framework_canvas", value:"true");
script_set_attribute(attribute:"canvas_package", value:'CANVAS');
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:rails");
script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:8.0");
script_set_attribute(attribute:"patch_publication_date", value:"2016/03/09");
script_set_attribute(attribute:"plugin_publication_date", value:"2016/03/10");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2016-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_family(english:"Debian Local Security Checks");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/Debian/release", "Host/Debian/dpkg-l");
exit(0);
}
include("audit.inc");
include("debian_package.inc");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Debian/release")) audit(AUDIT_OS_NOT, "Debian");
if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);
flag = 0;
if (deb_check(release:"8.0", prefix:"rails", reference:"2:4.1.8-1+deb8u2")) flag++;
if (deb_check(release:"8.0", prefix:"ruby-actionmailer", reference:"2:4.1.8-1+deb8u2")) flag++;
if (deb_check(release:"8.0", prefix:"ruby-actionpack", reference:"2:4.1.8-1+deb8u2")) flag++;
if (deb_check(release:"8.0", prefix:"ruby-actionview", reference:"2:4.1.8-1+deb8u2")) flag++;
if (deb_check(release:"8.0", prefix:"ruby-activemodel", reference:"2:4.1.8-1+deb8u2")) flag++;
if (deb_check(release:"8.0", prefix:"ruby-activerecord", reference:"2:4.1.8-1+deb8u2")) flag++;
if (deb_check(release:"8.0", prefix:"ruby-activesupport", reference:"2:4.1.8-1+deb8u2")) flag++;
if (deb_check(release:"8.0", prefix:"ruby-activesupport-2.3", reference:"2:4.1.8-1+deb8u2")) flag++;
if (deb_check(release:"8.0", prefix:"ruby-rails", reference:"2:4.1.8-1+deb8u2")) flag++;
if (deb_check(release:"8.0", prefix:"ruby-railties", reference:"2:4.1.8-1+deb8u2")) flag++;
if (flag)
{
if (report_verbosity > 0) security_hole(port:0, extra:deb_report_get());
else security_hole(0);
exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");
The latest version of this script can be found in these locations depending on your platform:
- Linux / Unix:
/opt/nessus/lib/nessus/plugins/debian_DSA-3509.nasl
- Windows:
C:\ProgramData\Tenable\Nessus\nessus\plugins\debian_DSA-3509.nasl
- Mac OS X:
/Library/Nessus/run/lib/nessus/plugins/debian_DSA-3509.nasl
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How to Run
Here is how to run the Debian DSA-3509-1 : rails - security update as a standalone plugin via the Nessus web user interface (https://localhost:8834/):
- Click to start a New Scan.
- Select Advanced Scan.
- Navigate to the Plugins tab.
- On the top right corner click to Disable All plugins.
- On the left side table select Debian Local Security Checks plugin family.
- On the right side table select Debian DSA-3509-1 : rails - security update plugin ID 89791.
- Specify the target on the Settings tab and click to Save the scan.
- Run the scan.
Here are a few examples of how to run the plugin in the command line. Note that the examples below demonstrate the usage on the Linux / Unix platform.
Basic usage:
/opt/nessus/bin/nasl debian_DSA-3509.nasl -t <IP/HOST>
Run the plugin with audit trail message on the console:
/opt/nessus/bin/nasl -a debian_DSA-3509.nasl -t <IP/HOST>
Run the plugin with trace script execution written to the console (useful for debugging):
/opt/nessus/bin/nasl -T - debian_DSA-3509.nasl -t <IP/HOST>
Run the plugin with using a state file for the target and updating it (useful for running multiple plugins on the target):
/opt/nessus/bin/nasl -K /tmp/state debian_DSA-3509.nasl -t <IP/HOST>
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References
DSA | Debian Security Advisory: See also:
- https://www.tenable.com/plugins/nessus/89791
- https://packages.debian.org/source/jessie/rails
- https://security-tracker.debian.org/tracker/CVE-2016-0752
- https://security-tracker.debian.org/tracker/CVE-2016-2097
- https://security-tracker.debian.org/tracker/CVE-2016-2098
- https://www.debian.org/security/2016/dsa-3509
- https://vulners.com/nessus/DEBIAN_DSA-3509.NASL
- 93132 - Debian DLA-604-1 : ruby-actionpack-3.2 security update
- 90013 - Fedora 22 : rubygem-actionpack-4.2.0-4.fc22 / rubygem-actionview-4.2.0-5.fc22 (2016-3954061e32)
- 90016 - Fedora 23 : rubygem-actionpack-4.2.3-5.fc23 / rubygem-actionview-4.2.3-5.fc23 (2016-f6af14570f)
- 89708 - FreeBSD : rails -- multiple vulnerabilities (5a016dd0-8aa8-490e-a596-55f4cc17e4ef)
- 89977 - openSUSE Security Update : rubygem-actionview-4_2 (openSUSE-2016-352)
- 90061 - openSUSE Security Update : rubygem-actionpack-3_2 (openSUSE-2016-369)
Version
This page has been produced using Nessus Professional 10.1.2 (#68) LINUX, Plugin set 202205072148.
Plugin file debian_DSA-3509.nasl version 2.15. For more plugins, visit the Nessus Plugin Library.
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