Vulnerabilities > CVE-2012-6601 - OS Command Injection vulnerability in Paloaltonetworks Pan-Os

047910
CVSS 10.0 - CRITICAL
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
COMPLETE
Integrity impact
COMPLETE
Availability impact
COMPLETE
network
low complexity
paloaltonetworks
CWE-78
critical
nessus

Summary

The device-management command-line interface in Palo Alto Networks PAN-OS before 3.1.12, 4.0.x before 4.0.10, and 4.1.x before 4.1.4 allows remote attackers to execute arbitrary code via unspecified vectors, aka Ref ID 36983.

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Command Line Execution through SQL Injection
    An attacker uses standard SQL injection methods to inject data into the command line for execution. This could be done directly through misuse of directives such as MSSQL_xp_cmdshell or indirectly through injection of data into the database that would be interpreted as shell commands. Sometime later, an unscrupulous backend application (or could be part of the functionality of the same application) fetches the injected data stored in the database and uses this data as command line arguments without performing proper validation. The malicious data escapes that data plane by spawning new commands to be executed on the host.
  • Command Delimiters
    An attack of this type exploits a programs' vulnerabilities that allows an attacker's commands to be concatenated onto a legitimate command with the intent of targeting other resources such as the file system or database. The system that uses a filter or a blacklist input validation, as opposed to whitelist validation is vulnerable to an attacker who predicts delimiters (or combinations of delimiters) not present in the filter or blacklist. As with other injection attacks, the attacker uses the command delimiter payload as an entry point to tunnel through the application and activate additional attacks through SQL queries, shell commands, network scanning, and so on.
  • Exploiting Multiple Input Interpretation Layers
    An attacker supplies the target software with input data that contains sequences of special characters designed to bypass input validation logic. This exploit relies on the target making multiples passes over the input data and processing a "layer" of special characters with each pass. In this manner, the attacker can disguise input that would otherwise be rejected as invalid by concealing it with layers of special/escape characters that are stripped off by subsequent processing steps. The goal is to first discover cases where the input validation layer executes before one or more parsing layers. That is, user input may go through the following logic in an application: In such cases, the attacker will need to provide input that will pass through the input validator, but after passing through parser2, will be converted into something that the input validator was supposed to stop.
  • Argument Injection
    An attacker changes the behavior or state of a targeted application through injecting data or command syntax through the targets use of non-validated and non-filtered arguments of exposed services or methods.
  • OS Command Injection
    In this type of an attack, an adversary injects operating system commands into existing application functions. An application that uses untrusted input to build command strings is vulnerable. An adversary can leverage OS command injection in an application to elevate privileges, execute arbitrary commands and compromise the underlying operating system.

Nessus

NASL familyPalo Alto Local Security Checks
NASL idPALO_ALTO_PAN-SA-2012-0012_0014.NASL
descriptionThe remote host is running a version of Palo Alto Networks PAN-OS prior to 3.1.12 / 4.0.10 / 4.1.4. It is, therefore, affected by multiple vulnerabilities : - A vulnerability exists that allows an unauthenticated user to inject commands as root on the device. (CVE-2012-6601 / PAN-SA-2012-0012) - A vulnerability exists that allows an unauthenticated user to gain administrator access without supplying credentials. (CVE-2012-6603 / PAN-SA-2012-0014)
last seen2020-06-01
modified2020-06-02
plugin id72825
published2014-03-05
reporterThis script is Copyright (C) 2014-2018 Tenable Network Security, Inc.
sourcehttps://www.tenable.com/plugins/nessus/72825
titlePalo Alto Networks PAN-OS < 3.1.12 / 4.0.x < 4.0.10 / 4.1.x < 4.1.4 Multiple Vulnerabilities
code
#
# (C) Tenable Network Security, Inc.
#


include("compat.inc");


if (description)
{
  script_id(72825);
  script_version("1.6");
  script_cvs_date("Date: 2018/07/24 18:56:13");

  script_cve_id("CVE-2012-6601", "CVE-2012-6603");
  script_bugtraq_id(62115, 62121);

  script_name(english:"Palo Alto Networks PAN-OS < 3.1.12 / 4.0.x < 4.0.10 / 4.1.x < 4.1.4 Multiple Vulnerabilities");
  script_summary(english:"Checks the PAN-OS version.");

  script_set_attribute(attribute:"synopsis", value:"The remote host is affected by multiple vulnerabilities.");
  script_set_attribute(
    attribute:"description",
    value:
"The remote host is running a version of Palo Alto Networks PAN-OS
prior to 3.1.12 / 4.0.10 / 4.1.4. It is, therefore, affected by
multiple vulnerabilities :

  - A vulnerability exists that allows an unauthenticated
    user to inject commands as root on the device.
    (CVE-2012-6601 / PAN-SA-2012-0012)

  - A vulnerability exists that allows an unauthenticated
    user to gain administrator access without supplying
    credentials. (CVE-2012-6603 / PAN-SA-2012-0014)"
  );
  script_set_attribute(attribute:"see_also", value:"https://securityadvisories.paloaltonetworks.com/Home/Detail/12");
  script_set_attribute(attribute:"see_also", value:"https://securityadvisories.paloaltonetworks.com/Home/Detail/14");
  script_set_attribute(attribute:"solution", value:"Upgrade to PAN-OS version 3.1.12 / 4.0.10 / 4.1.4 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/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_set_attribute(attribute:"vuln_publication_date", value:"2012/04/27");
  script_set_attribute(attribute:"patch_publication_date", value:"2012/03/21");
  script_set_attribute(attribute:"plugin_publication_date", value:"2014/03/05");

  script_set_attribute(attribute:"plugin_type", value:"combined");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:paloaltonetworks:pan-os");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Palo Alto Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2014-2018 Tenable Network Security, Inc.");

  script_dependencies("palo_alto_version.nbin");
  script_require_keys("Host/Palo_Alto/Firewall/Version", "Host/Palo_Alto/Firewall/Full_Version");

  exit(0);
}

include("audit.inc");
include("global_settings.inc");
include("misc_func.inc");

app_name = "Palo Alto Networks PAN-OS";
version = get_kb_item_or_exit("Host/Palo_Alto/Firewall/Version");
full_version = get_kb_item_or_exit("Host/Palo_Alto/Firewall/Full_Version");
fix = NULL;

# Ensure sufficient granularity.
if (version !~ "^\d+\.\d+") audit(AUDIT_VER_NOT_GRANULAR, app_name, full_version);

if (version =~ "^4\.0($|[^0-9])")
  fix = "4.0.10";
else if (version =~ "^4\.1($|[^0-9])")
  fix = "4.1.4";
else 
  fix = "3.1.12";

# Compare version to fix and report as needed.
if (ver_compare(ver:version, fix:fix, strict:FALSE) == -1)
{
  if (report_verbosity > 0)
  {
    report =
      '\n  Installed version : ' + full_version +
      '\n  Fixed version     : ' + fix +
      '\n';
    security_hole(extra:report, port:0);
  }
  else security_hole(0);
  exit(0);
}
else audit(AUDIT_INST_VER_NOT_VULN, app_name, full_version);