F5 Networks BIG-IP : OpenSSH vulnerability (K14609) - Nessus

Low Plugin ID: 78153

This page contains detailed information about the F5 Networks BIG-IP : OpenSSH vulnerability (K14609) 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: 78153
Name: F5 Networks BIG-IP : OpenSSH vulnerability (K14609)
Filename: f5_bigip_SOL14609.nasl
Vulnerability Published: 2008-11-19
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: Low
Vulnerability Published: 2008-11-19
Patch Published: 2013-08-15
CVE [?]: CVE-2008-5161
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

Error handling in the SSH protocol in (1) SSH Tectia Client and Server and Connector 4.0 through 4.4.11, 5.0 through 5.2.4, and 5.3 through 5.3.8; Client and Server and ConnectSecure 6.0 through 6.0.4; Server for Linux on IBM System z 6.0.4; Server for IBM z/OS 5.5.1 and earlier, 6.0.0, and 6.0.1; and Client 4.0-J through 4.3.3-J and 4.0-K through 4.3.10-K; and (2) OpenSSH 4.7p1 and possibly other versions, when using a block cipher algorithm in Cipher Block Chaining (CBC) mode, makes it easier for remote attackers to recover certain plaintext data from an arbitrary block of ciphertext in an SSH session by way of unknown vectors. (CVE-2008-5161)

Solution

Upgrade to one of the non-vulnerable versions listed in the F5 Solution K14609.

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 (K14609) vulnerability:

GitHub: https://github.com/AAROC/harden-ssh
[CVE-2008-5161]
GitHub: https://github.com/ekiojp/hanase
[CVE-2008-5161]
GitHub: https://github.com/joshgarlandreese/WordPressRedTeam_BlueTeam
[CVE-2008-5161]
GitHub: https://github.com/kaio6fellipe/ssh-enum
[CVE-2008-5161]
GitHub: https://github.com/saib2018/Wordpress_Red_Blue_Teaming
[CVE-2008-5161]

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:H/Au:N/C:P/I:N/A:N/E:ND/RL:OF/RC:C

CVSS Base Score:	2.6 (Low)
Impact Subscore:	2.9
Exploitability Subscore:	4.9
CVSS Temporal Score:	2.3 (Low)
CVSS Environmental Score:	NA (None)
Modified Impact Subscore:	NA
Overall CVSS Score:	2.3 (Low)

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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 K14609.
#
# The text description of this plugin is (C) F5 Networks.
#

include("compat.inc");

if (description)
{
  script_id(78153);
  script_version("1.8");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/03/10");

  script_cve_id("CVE-2008-5161");
  script_bugtraq_id(32319);

  script_name(english:"F5 Networks BIG-IP : OpenSSH vulnerability (K14609)");
  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:
"Error handling in the SSH protocol in (1) SSH Tectia Client and Server
and Connector 4.0 through 4.4.11, 5.0 through 5.2.4, and 5.3 through
5.3.8; Client and Server and ConnectSecure 6.0 through 6.0.4; Server
for Linux on IBM System z 6.0.4; Server for IBM z/OS 5.5.1 and
earlier, 6.0.0, and 6.0.1; and Client 4.0-J through 4.3.3-J and 4.0-K
through 4.3.10-K; and (2) OpenSSH 4.7p1 and possibly other versions,
when using a block cipher algorithm in Cipher Block Chaining (CBC)
mode, makes it easier for remote attackers to recover certain
plaintext data from an arbitrary block of ciphertext in an SSH session
by way of unknown vectors. (CVE-2008-5161)"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://support.f5.com/csp/article/K14609"
  );
  script_set_attribute(
    attribute:"solution",
    value:
"Upgrade to one of the non-vulnerable versions listed in the F5
Solution K14609."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:H/Au:N/C:P/I:N/A:N");
  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(200);

  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:"2008/11/19");
  script_set_attribute(attribute:"patch_publication_date", value:"2013/08/15");
  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 = "K14609";
vmatrix = make_array();

# ASM
vmatrix["ASM"] = make_array();
vmatrix["ASM"]["affected"  ] = make_list("9.2.0-9.4.8","10.0.0-10.0.1");
vmatrix["ASM"]["unaffected"] = make_list("10.1.0-10.2.4","11.0.0-11.4.0");

# GTM
vmatrix["GTM"] = make_array();
vmatrix["GTM"]["affected"  ] = make_list("9.2.2-9.4.8","10.0.0-10.0.1");
vmatrix["GTM"]["unaffected"] = make_list("10.1.0-10.2.4","11.0.0-11.4.0");

# LC
vmatrix["LC"] = make_array();
vmatrix["LC"]["affected"  ] = make_list("9.2.2-9.4.8","10.0.0-10.0.1");
vmatrix["LC"]["unaffected"] = make_list("10.1.0-10.2.4","11.0.0-11.4.0");

# LTM
vmatrix["LTM"] = make_array();
vmatrix["LTM"]["affected"  ] = make_list("9.0.0-9.6.1","10.0.0-10.0.1");
vmatrix["LTM"]["unaffected"] = make_list("10.1.0-10.2.4","11.0.0-11.4.0");

# PSM
vmatrix["PSM"] = make_array();
vmatrix["PSM"]["affected"  ] = make_list("9.4.5-9.4.8","10.0.0-10.0.1");
vmatrix["PSM"]["unaffected"] = make_list("10.1.0-10.2.4","11.0.0-11.4.0");

# WAM
vmatrix["WAM"] = make_array();
vmatrix["WAM"]["affected"  ] = make_list("9.4.0-9.4.8","10.0.0-10.0.1");
vmatrix["WAM"]["unaffected"] = make_list("10.1.0-10.2.4","11.0.0-11.3.0");

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


if (bigip_is_affected(vmatrix:vmatrix, sol:sol))
{
  if (report_verbosity > 0) security_note(port:0, extra:bigip_report_get());
  else security_note(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_SOL14609.nasl
Windows:
C:\ProgramData\Tenable\Nessus\nessus\plugins\f5_bigip_SOL14609.nasl
Mac OS X:
/Library/Nessus/run/lib/nessus/plugins/f5_bigip_SOL14609.nasl

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How to Run

Here is how to run the F5 Networks BIG-IP : OpenSSH vulnerability (K14609) 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 (K14609) plugin ID 78153.
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_SOL14609.nasl -t <IP/HOST>

Run the plugin with audit trail message on the console:

/opt/nessus/bin/nasl -a f5_bigip_SOL14609.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_SOL14609.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_SOL14609.nasl -t <IP/HOST>

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References

BID | SecurityFocus Bugtraq ID:

32319

CWE | Common Weakness Enumeration:

CWE-200 (Weakness) Exposure of Sensitive Information to an Unauthorized Actor

See also:

Similar and related Nessus plugins:

73557 - AIX OpenSSH Advisory: openssh_advisory.asc
43781 - CentOS 5 : openssh (CESA-2009:1287)
73958 - GLSA-201405-06 : OpenSSH: Multiple vulnerabilities
42433 - Mac OS X Multiple Vulnerabilities (Security Update 2009-006)
44065 - OpenSSH < 5.2 CBC Plaintext Disclosure
40837 - RHEL 5 : openssh (RHSA-2009:1287)
60657 - Scientific Linux Security Update : openssh on SL5.x i386/x86_64
36806 - Solaris 10 (sparc) : 140774-03
36559 - Solaris 10 (x86) : 140775-03
24858 - Solaris 9 (sparc) : 122300-61
24861 - Solaris 9 (x86) : 122301-61
70658 - SSH Server CBC Mode Ciphers Enabled
55992 - SunSSH < 1.1.1 / 1.3 CBC Plaintext Disclosure

Version

This page has been produced using Nessus Professional 10.1.2 (#68) LINUX, Plugin set 202205072148.
Plugin file f5_bigip_SOL14609.nasl version 1.8. For more plugins, visit the Nessus Plugin Library.

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F5 Networks BIG-IP : OpenSSH vulnerability (K14609) - Nessus

Plugin Overview

Vulnerability Information

Synopsis

Description

Solution

Public Exploits

Risk Information

Plugin Source

How to Run

References

Version

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