F5 Networks BIG-IP : OpenSSH vulnerability (SOL15156) - Nessus

Medium Plugin ID: 78162

This page contains detailed information about the F5 Networks BIG-IP : OpenSSH vulnerability (SOL15156) 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: 78162
Name: F5 Networks BIG-IP : OpenSSH vulnerability (SOL15156)
Filename: f5_bigip_SOL15156.nasl
Vulnerability Published: 2009-10-01
This Plugin Published: 2014-10-10
Last Modification Time: 2021-03-10
Plugin Version: 1.8
Plugin Type: local
Plugin Family: F5 Networks Local Security Checks
Dependencies: f5_bigip_detect.nbin
Required KB Items [?]: Host/BIG-IP/hotfix, Host/BIG-IP/modules, Host/BIG-IP/version, Host/local_checks_enabled

Vulnerability Information

Severity: Medium
Vulnerability Published: 2009-10-01
Patch Published: 2014-04-10
CVE [?]: CVE-2009-2904
CPE [?]: cpe:/a:f5:big-ip_application_security_manager, cpe:/a:f5:big-ip_global_traffic_manager, cpe:/a:f5:big-ip_link_controller, cpe:/a:f5:big-ip_local_traffic_manager, cpe:/a:f5:big-ip_wan_optimization_manager, cpe:/a:f5:big-ip_webaccelerator, cpe:/h:f5:big-ip, cpe:/h:f5:big-ip_protocol_security_manager

Synopsis

The remote device is missing a vendor-supplied security patch.

Description

A certain Red Hat modification to the ChrootDirectory feature in OpenSSH 4.8, as used in sshd in OpenSSH 4.3 in Red Hat Enterprise Linux (RHEL) 5.4 and Fedora 11, allows local users to gain privileges via hard links to setuid programs that use configuration files within the chroot directory, related to requirements for directory ownership. (CVE-2009-2904)

Solution

Upgrade to one of the non-vulnerable versions listed in the F5 Solution SOL15156.

Public Exploits

Target Network Port(s): N/A
Target Asset(s): N/A
Exploit Available: True (GitHub)
Exploit Ease: Exploits (PoCs) are available

Here's the list of publicly known exploits and PoCs for verifying the F5 Networks BIG-IP : OpenSSH vulnerability (SOL15156) vulnerability:

GitHub: https://github.com/kaio6fellipe/ssh-enum
[CVE-2009-2904]

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:L/AC:M/Au:N/C:C/I:C/A:C/E:ND/RL:OF/RC:C

CVSS Base Score:	6.9 (Medium)
Impact Subscore:	10.0
Exploitability Subscore:	3.4
CVSS Temporal Score:	6.0 (Medium)
CVSS Environmental Score:	NA (None)
Modified Impact Subscore:	NA
Overall CVSS Score:	6.0 (Medium)

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Plugin Source

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from F5 Networks BIG-IP Solution SOL15156.
#
# The text description of this plugin is (C) F5 Networks.
#

include("compat.inc");

if (description)
{
  script_id(78162);
  script_version("1.8");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/03/10");

  script_cve_id("CVE-2009-2904");
  script_bugtraq_id(36552);

  script_name(english:"F5 Networks BIG-IP : OpenSSH vulnerability (SOL15156)");
  script_summary(english:"Checks the BIG-IP version.");

  script_set_attribute(
    attribute:"synopsis",
    value:"The remote device is missing a vendor-supplied security patch."
  );
  script_set_attribute(
    attribute:"description",
    value:
"A certain Red Hat modification to the ChrootDirectory feature in
OpenSSH 4.8, as used in sshd in OpenSSH 4.3 in Red Hat Enterprise
Linux (RHEL) 5.4 and Fedora 11, allows local users to gain privileges
via hard links to setuid programs that use configuration files within
the chroot directory, related to requirements for directory ownership.
(CVE-2009-2904)"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://support.f5.com/csp/article/K15156"
  );
  script_set_attribute(
    attribute:"solution",
    value:
"Upgrade to one of the non-vulnerable versions listed in the F5
Solution SOL15156."
  );
  script_set_cvss_base_vector("CVSS2#AV:L/AC:M/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:ND/RL:OF/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_cwe_id(16);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-ip_application_security_manager");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-ip_global_traffic_manager");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-ip_link_controller");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-ip_local_traffic_manager");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-ip_wan_optimization_manager");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-ip_webaccelerator");
  script_set_attribute(attribute:"cpe", value:"cpe:/h:f5:big-ip");
  script_set_attribute(attribute:"cpe", value:"cpe:/h:f5:big-ip_protocol_security_manager");

  script_set_attribute(attribute:"vuln_publication_date", value:"2009/10/01");
  script_set_attribute(attribute:"patch_publication_date", value:"2014/04/10");
  script_set_attribute(attribute:"plugin_publication_date", value:"2014/10/10");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2014-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"F5 Networks Local Security Checks");

  script_dependencies("f5_bigip_detect.nbin");
  script_require_keys("Host/local_checks_enabled", "Host/BIG-IP/hotfix", "Host/BIG-IP/modules", "Host/BIG-IP/version");

  exit(0);
}


include("f5_func.inc");

if ( ! get_kb_item("Host/local_checks_enabled") ) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
version = get_kb_item("Host/BIG-IP/version");
if ( ! version ) audit(AUDIT_OS_NOT, "F5 Networks BIG-IP");
if ( isnull(get_kb_item("Host/BIG-IP/hotfix")) ) audit(AUDIT_KB_MISSING, "Host/BIG-IP/hotfix");
if ( ! get_kb_item("Host/BIG-IP/modules") ) audit(AUDIT_KB_MISSING, "Host/BIG-IP/modules");

sol = "SOL15156";
vmatrix = make_array();

# ASM
vmatrix["ASM"] = make_array();
vmatrix["ASM"]["affected"  ] = make_list("10.0.0-10.0.1");
vmatrix["ASM"]["unaffected"] = make_list("11.0.0-11.5.1","10.1.0-10.2.4");

# GTM
vmatrix["GTM"] = make_array();
vmatrix["GTM"]["affected"  ] = make_list("10.0.0-10.0.1");
vmatrix["GTM"]["unaffected"] = make_list("11.0.0-11.5.1","10.1.0-10.2.4");

# LC
vmatrix["LC"] = make_array();
vmatrix["LC"]["affected"  ] = make_list("10.0.0-10.0.1");
vmatrix["LC"]["unaffected"] = make_list("11.0.0-11.5.1","10.1.0-10.2.4");

# LTM
vmatrix["LTM"] = make_array();
vmatrix["LTM"]["affected"  ] = make_list("10.0.0-10.0.1");
vmatrix["LTM"]["unaffected"] = make_list("11.0.0-11.5.1","10.1.0-10.2.4");

# PSM
vmatrix["PSM"] = make_array();
vmatrix["PSM"]["affected"  ] = make_list("10.0.0-10.0.1");
vmatrix["PSM"]["unaffected"] = make_list("11.0.0-11.4.1","10.1.0-10.2.4");

# WAM
vmatrix["WAM"] = make_array();
vmatrix["WAM"]["affected"  ] = make_list("10.0.0-10.0.1");
vmatrix["WAM"]["unaffected"] = make_list("11.0.0-11.3.0","10.1.0-10.2.4");

# WOM
vmatrix["WOM"] = make_array();
vmatrix["WOM"]["affected"  ] = make_list("10.0.0-10.0.1");
vmatrix["WOM"]["unaffected"] = make_list("11.0.0-11.3.0","10.1.0-10.2.4");


if (bigip_is_affected(vmatrix:vmatrix, sol:sol))
{
  if (report_verbosity > 0) security_warning(port:0, extra:bigip_report_get());
  else security_warning(0);
  exit(0);
}
else
{
  tested = bigip_get_tested_modules();
  audit_extra = "For BIG-IP module(s) " + tested + ",";
  if (tested) audit(AUDIT_INST_VER_NOT_VULN, audit_extra, version);
  else audit(AUDIT_HOST_NOT, "running any of the affected modules");
}

The latest version of this script can be found in these locations depending on your platform:

Linux / Unix:
/opt/nessus/lib/nessus/plugins/f5_bigip_SOL15156.nasl
Windows:
C:\ProgramData\Tenable\Nessus\nessus\plugins\f5_bigip_SOL15156.nasl
Mac OS X:
/Library/Nessus/run/lib/nessus/plugins/f5_bigip_SOL15156.nasl

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How to Run

Here is how to run the F5 Networks BIG-IP : OpenSSH vulnerability (SOL15156) 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 F5 Networks Local Security Checks plugin family.
On the right side table select F5 Networks BIG-IP : OpenSSH vulnerability (SOL15156) plugin ID 78162.
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 f5_bigip_SOL15156.nasl -t <IP/HOST>

Run the plugin with audit trail message on the console:

/opt/nessus/bin/nasl -a f5_bigip_SOL15156.nasl -t <IP/HOST>

Run the plugin with trace script execution written to the console (useful for debugging):

/opt/nessus/bin/nasl -T - f5_bigip_SOL15156.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 f5_bigip_SOL15156.nasl -t <IP/HOST>

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References

BID | SecurityFocus Bugtraq ID:

36552

CWE | Common Weakness Enumeration:

CWE-16 (Category) Configuration

See also:

Similar and related Nessus plugins:

43797 - CentOS 5 : openssh (CESA-2009:1470)
47388 - Fedora 11 : openssh-5.2p1-6.fc11 (2010-5429)
17706 - Red Hat Enterprise Linux OpenSSH ChrootDirectory Local Privilege Escalation
67933 - Oracle Linux 5 : openssh (ELSA-2009-1470)
41951 - RHEL 5 : openssh (RHSA-2009:1470)
60671 - Scientific Linux Security Update : openssh on SL5.x i386/x86_64
44993 - VMSA-2010-0004 : ESX Service Console and vMA third-party updates
89737 - VMware ESX Third-Party Libraries Multiple Vulnerabilities (VMSA-2010-0004) (remote check)

Version

This page has been produced using Nessus Professional 10.1.2 (#68) LINUX, Plugin set 202205072148.
Plugin file f5_bigip_SOL15156.nasl version 1.8. For more plugins, visit the Nessus Plugin Library.

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F5 Networks BIG-IP : OpenSSH vulnerability (SOL15156) - Nessus

Plugin Overview

Vulnerability Information

Synopsis

Description

Solution

Public Exploits

Risk Information

Plugin Source

How to Run

References

Version

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