Debian DSA-3942-1 : supervisor - security update - Nessus

High Plugin ID: 102449

This page contains detailed information about the Debian DSA-3942-1 : supervisor - security update Nessus plugin including available exploits and PoCs found on GitHub, in Metasploit or Exploit-DB for verifying of this vulnerability.

Table Of Contents

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Plugin Overview
Vulnerability Information

Synopsis
Description
Solution

Public Exploits
Risk Information
Plugin Source
How to Run
References
Version

Plugin Overview

ID: 102449
Name: Debian DSA-3942-1 : supervisor - security update
Filename: debian_DSA-3942.nasl
Vulnerability Published: N/A
This Plugin Published: 2017-08-14
Last Modification Time: 2021-01-04
Plugin Version: 3.7
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: 2017-08-13
CVE [?]: CVE-2017-11610
CPE [?]: cpe:/o:debian:debian_linux:8.0, cpe:/o:debian:debian_linux:9.0, p-cpe:/a:debian:debian_linux:supervisor

Synopsis

The remote Debian host is missing a security-related update.

Description

Calum Hutton reported that the XML-RPC server in supervisor, a system for controlling process state, does not perform validation on requested XML-RPC methods, allowing an authenticated client to send a malicious XML-RPC request to supervisord that will run arbitrary shell commands on the server as the same user as supervisord.

The vulnerability has been fixed by disabling nested namespace lookup entirely. supervisord will now only call methods on the object registered to handle XML-RPC requests and not any child objects it may contain, possibly breaking existing setups. No publicly available plugins are currently known that use nested namespaces. Plugins that use a single namespace will continue to work as before. Details can be found on the upstream issue at https://github.com/Supervisor/supervisor/issues/964 .

Solution

Upgrade the supervisor packages.

For the oldstable distribution (jessie), this problem has been fixed in version 3.0r1-1+deb8u1.

For the stable distribution (stretch), this problem has been fixed in version 3.3.1-1+deb9u1.

Public Exploits

Target Network Port(s): N/A
Target Asset(s): N/A
Exploit Available: True (Metasploit Framework, Exploit-DB, GitHub)
Exploit Ease: Exploits are available

Here's the list of publicly known exploits and PoCs for verifying the Debian DSA-3942-1 : supervisor - security update vulnerability:

Metasploit: exploit/linux/http/supervisor_xmlrpc_exec
[Supervisor XML-RPC Authenticated Remote Code Execution]
Exploit-DB: exploits/linux/remote/42779.rb
[EDB-42779: Supervisor 3.0a1 < 3.3.2 - XML-RPC (Authenticated) Remote Code Execution (Metasploit)]
GitHub: https://github.com/NCSU-DANCE-Research-Group/CDL
[CVE-2017-11610]
GitHub: https://github.com/SexyBeast233/SecBooks
[CVE-2017-11610]
GitHub: https://github.com/TesterCC/exp_poc_library
[CVE-2017-11610]
GitHub: https://github.com/amcai/myscan
[CVE-2017-11610]
GitHub: https://github.com/everping/whitehat-grand-prix-2017
[CVE-2017-11610]
GitHub: https://github.com/hanc00l/some_pocsuite
[CVE-2017-11610]
GitHub: https://github.com/ivanitlearning/CVE-2017-11610
[CVE-2017-11610: Standalone Python ≥3.6 RCE Unauthenticated exploit for Supervisor 3.0a1 to 3.3.2]
GitHub: https://github.com/jiangsir404/POC-S
[CVE-2017-11610]
GitHub: https://github.com/yaunsky/CVE-2017-11610
[CVE-2017-11610: Supervisord远程命令执行漏洞脚本]
GitHub: https://github.com/ysrc/xunfeng/blob/master/vulscan/vuldb/crack_supervisor_web.py
[CVE-2017-11610]

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:S/C:C/I:C/A:C/E:F/RL:OF/RC:C

CVSS Base Score:	9.0 (High)
Impact Subscore:	10.0
Exploitability Subscore:	8.0
CVSS Temporal Score:	7.4 (High)
CVSS Environmental Score:	NA (None)
Modified Impact Subscore:	NA
Overall CVSS Score:	7.4 (High)

CVSS V3 Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C

CVSS Base Score:	8.8 (High)
Impact Subscore:	5.9
Exploitability Subscore:	2.8
CVSS Temporal Score:	8.2 (High)
CVSS Environmental Score:	NA (None)
Modified Impact Subscore:	NA
Overall CVSS Score:	8.2 (High)

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Plugin Source

#%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-3942. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(102449);
  script_version("3.7");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/04");

  script_cve_id("CVE-2017-11610");
  script_xref(name:"DSA", value:"3942");

  script_name(english:"Debian DSA-3942-1 : supervisor - 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:
"Calum Hutton reported that the XML-RPC server in supervisor, a system
for controlling process state, does not perform validation on
requested XML-RPC methods, allowing an authenticated client to send a
malicious XML-RPC request to supervisord that will run arbitrary shell
commands on the server as the same user as supervisord.

The vulnerability has been fixed by disabling nested namespace lookup
entirely. supervisord will now only call methods on the object
registered to handle XML-RPC requests and not any child objects it may
contain, possibly breaking existing setups. No publicly available
plugins are currently known that use nested namespaces. Plugins that
use a single namespace will continue to work as before. Details can be
found on the upstream issue at
https://github.com/Supervisor/supervisor/issues/964 ."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=870187"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://github.com/Supervisor/supervisor/issues/964"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/jessie/supervisor"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/stretch/supervisor"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.debian.org/security/2017/dsa-3942"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the supervisor packages.

For the oldstable distribution (jessie), this problem has been fixed
in version 3.0r1-1+deb8u1.

For the stable distribution (stretch), this problem has been fixed in
version 3.3.1-1+deb9u1."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C");
  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:L/UI:N/S:U/C:H/I:H/A:H");
  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:"metasploit_name", value:'Supervisor XML-RPC Authenticated Remote Code Execution');
  script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:supervisor");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:8.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:9.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2017/08/13");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/08/14");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2017-2021 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:"supervisor", reference:"3.0r1-1+deb8u1")) flag++;
if (deb_check(release:"9.0", prefix:"supervisor", reference:"3.3.1-1+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"supervisor-doc", reference:"3.3.1-1+deb9u1")) 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-3942.nasl
Windows:
C:\ProgramData\Tenable\Nessus\nessus\plugins\debian_DSA-3942.nasl
Mac OS X:
/Library/Nessus/run/lib/nessus/plugins/debian_DSA-3942.nasl

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How to Run

Here is how to run the Debian DSA-3942-1 : supervisor - 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-3942-1 : supervisor - security update plugin ID 102449.
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-3942.nasl -t <IP/HOST>

Run the plugin with audit trail message on the console:

/opt/nessus/bin/nasl -a debian_DSA-3942.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-3942.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-3942.nasl -t <IP/HOST>

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References

DSA | Debian Security Advisory:

3942

See also:

Similar and related Nessus plugins:

102085 - Debian DLA-1047-1 : supervisor security update
102246 - Fedora 26 : supervisor (2017-307eab89e1)
102393 - Fedora 24 : supervisor (2017-713430fb15)
102275 - Fedora 25 : supervisor (2017-85eb9f7a36)
102508 - FreeBSD : Supervisord -- An authenticated client can run arbitrary shell commands via malicious XML-RPC requests (c9460380-81e3-11e7-93af-005056925db4)
103274 - GLSA-201709-06 : Supervisor: command injection vulnerability

Version

This page has been produced using Nessus Professional 10.1.2 (#68) LINUX, Plugin set 202205072148.
Plugin file debian_DSA-3942.nasl version 3.7. For more plugins, visit the Nessus Plugin Library.

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Debian DSA-3942-1 : supervisor - security update - Nessus

Plugin Overview

Vulnerability Information

Synopsis

Description

Solution

Public Exploits

Risk Information

Plugin Source

How to Run

References

Version

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