Berlios gpsd gpsd_report() Function Format String - Nessus

High   Plugin ID: 16265

This page contains detailed information about the Berlios gpsd gpsd_report() Function Format String 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

ID: 16265
Name: Berlios gpsd gpsd_report() Function Format String
Filename: gpsd_overflow.nasl
Vulnerability Published: 2005-01-26
This Plugin Published: 2005-01-27
Last Modification Time: 2018-11-15
Plugin Version: 1.12
Plugin Type: remote
Plugin Family: Gain a shell remotely
Dependencies: find_service2.nasl

Vulnerability Information

Severity: High
Vulnerability Published: 2005-01-26
Patch Published: 2005-01-27
CVE [?]: CVE-2004-1388
CPE [?]: N/A

Synopsis

The remote host is running a GPS monitoring application that is vulnerable to a format string attack.

Description

The remote host is running GPSD, a daemon which monitors a GPS device and publishes its data over the network.

The remote version of this software is vulnerable to format string attack due to the way it uses the syslog() call. An attacker may exploit this flaw to execute arbitrary code on the remote host.

Solution

Upgrade to gpsd 2.8 or newer.

Public Exploits

Target Network Port(s): 2947
Target Asset(s): Services/gpsd
Exploit Available: True (Metasploit Framework, Exploit-DB, Immunity Canvas)
Exploit Ease: Exploits are available

Here's the list of publicly known exploits and PoCs for verifying the Berlios gpsd gpsd_report() Function Format String vulnerability:

  1. Metasploit: exploit/linux/http/gpsd_format_string
    [Berlios GPSD Format String Vulnerability]
  2. Exploit-DB: exploits/linux/remote/10029.rb
    [EDB-10029: Berlios GPSD 1.91-1 < 2.7-2 - Format String]
  3. Exploit-DB: exploits/linux/remote/16853.rb
    [EDB-16853: Berlios GPSD - Format String (Metasploit)]
  4. 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)

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Plugin Source

This is the gpsd_overflow.nasl nessus plugin source code. This script is Copyright (C) 2005-2018 Tenable Network Security, Inc. 

#
# (C) Tenable Network Security, Inc.
#


include("compat.inc");

if(description)
{
 script_id(16265);
 script_version("1.12");
 script_cve_id("CVE-2004-1388");
 script_bugtraq_id(12371);

 script_name(english:"Berlios gpsd gpsd_report() Function Format String");
 script_summary(english:"Checks the version of the remote gpsd server");

 script_set_attribute(attribute:"synopsis", value:
"The remote host is running a GPS monitoring application that is
vulnerable to a format string attack." );
 script_set_attribute(attribute:"description", value:
"The remote host is running GPSD, a daemon which monitors a GPS device
and publishes its data over the network.

The remote version of this software is vulnerable to format string attack
due to the way it uses the syslog() call. An attacker may exploit this flaw
to execute arbitrary code on the remote host." );
 script_set_attribute(attribute:"see_also", value:"https://seclists.org/fulldisclosure/2005/Jan/812" );
 # "https://www.mail-archive.com/[email protected]/msg02103.html
 script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?1a1734fa" );
 script_set_attribute(attribute:"solution", value:
"Upgrade to gpsd 2.8 or newer." );
 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_attribute(attribute:"exploitability_ease", value:"Exploits are available");
 script_set_attribute(attribute:"exploit_available", value:"true");
 script_set_attribute(attribute:"metasploit_name", value:'Berlios GPSD Format String Vulnerability');
 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_publication_date", value: "2005/01/27");
 script_set_attribute(attribute:"patch_publication_date", value: "2005/01/27");
 script_set_attribute(attribute:"vuln_publication_date", value: "2005/01/26");
 script_cvs_date("Date: 2018/11/15 20:50:22");
script_set_attribute(attribute:"plugin_type", value:"remote");
script_end_attributes();

 
 script_category(ACT_GATHER_INFO);
 script_copyright(english:"This script is Copyright (C) 2005-2018 Tenable Network Security, Inc.");
 script_family(english:"Gain a shell remotely");
 script_dependencies("find_service2.nasl");
 script_require_ports("Services/gpsd", 2947);
 exit(0);
}


port = get_kb_item("Services/gpsd");
if ( ! port ) port = 2947;

if ( ! get_port_state( port ) ) exit(0);

soc = open_sock_tcp(port);
if ( ! soc ) exit(0);

send(socket:soc, data:'HELP\r\n');
r = recv_line(socket:soc, length:4096);
if ( ! r || "GPSD," >!< r ) exit(0);

version = ereg_replace(pattern:".*GPSD,.* ([0-9.]+) .*", string:r, replace:"\1");
if ( version == r ) exit(0);

if ( ereg(pattern:"^([01]|2\.[0-7]$)", string:version) )
	security_hole(port);

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

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

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How to Run

Here is how to run the Berlios gpsd gpsd_report() Function Format String as a standalone plugin via the Nessus web user interface (https://localhost:8834/):

  1. Click to start a New Scan.
  2. Select Advanced Scan.
  3. Navigate to the Plugins tab.
  4. On the top right corner click to Disable All plugins.
  5. On the left side table select Gain a shell remotely plugin family.
  6. On the right side table select Berlios gpsd gpsd_report() Function Format String plugin ID 16265.
  7. Specify the target on the Settings tab and click to Save the scan.
  8. 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 gpsd_overflow.nasl -t <IP/HOST>

Run the plugin with audit trail message on the console:

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

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

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

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References

BID | SecurityFocus Bugtraq ID: See also: Similar and related Nessus plugins:
  • 30106 - AXIGEN Mail Server AXIMilter CNHO Command Remote Format String
  • 10522 - LPRng use_syslog() Remote Format String Arbitrary Command Execution
  • 31642 - VLC Media Player network/httpd.c httpd_FileCallBack Function Connection Parameter Format String
  • 12086 - DreamFTP Server username Remote Format String
  • 18974 - FreeBSD : gld -- format string and buffer overflow vulnerabilities (6c2d4f29-af3e-11d9-837d-000e0c2e438a)
  • 57739 - FreeBSD : sudo -- format string vulnerability (7c920bb7-4b5f-11e1-9f47-00e0815b8da8)
  • 21504 - FreeBSD : perl, webmin, usermin -- perl format string integer wrap vulnerability (bb33981a-7ac6-11da-bf72-00123f589060)
  • 22213 - FreeBSD : mysql -- format string vulnerability (fcb90eb0-2ace-11db-a6e2-000e0c2e438a)
  • 18530 - GLSA-200506-15 : PeerCast: Format string vulnerability
  • 20281 - GLSA-200512-02 : Webmin, Usermin: Format string vulnerability
  • 31732 - McAfee Common Management Agent < 3.6.0.595 UDP Packet Handling Format String
  • 17839 - OpenSSH < 2.1.1p3 Format String Privilege Escalation
  • 18417 - PeerCast URL Error Message Format String
  • 16064 - SHOUTcast Server Filename Handling Format String
  • 63075 - VMware OVF Tool 2.1 File Handling Format String Vulnerability (VMSA-2012-0015)
  • 20343 - Webmin 'miniserv.pl' 'username' Parameter Format String
  • 10452 - WU-FTPD site_exec() Function Remote Format String

Version

This page has been produced using Nessus Professional 10.1.2 (#68) LINUX, Plugin set 202205072148.
Plugin file gpsd_overflow.nasl version 1.12. For more plugins, visit the Nessus Plugin Library.

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