The remote host is running a version of Palo Alto Networks PAN-OS prior to 5.0.15 / 5.1.10 / 6.0.6 / 6.1.1. It is, therefore, affected by a command injection vulnerability in GNU Bash known as Shellshock, which is due to the processing of trailing strings after function definitions in the values of environment variables. This allows a remote attacker to execute arbitrary code via environment variable manipulation depending on the configuration of the system.
#
# (C) Tenable Network Security, Inc.
#
include('compat.inc');
if (description)
{
script_id(78587);
script_version("1.14");
script_set_attribute(attribute:"plugin_modification_date", value:"2022/12/05");
script_cve_id("CVE-2014-6271", "CVE-2014-7169");
script_bugtraq_id(70103, 70137);
script_xref(name:"CERT", value:"252743");
script_xref(name:"IAVA", value:"2014-A-0142");
script_xref(name:"EDB-ID", value:"34765");
script_xref(name:"EDB-ID", value:"34766");
script_xref(name:"EDB-ID", value:"34777");
script_xref(name:"CISA-KNOWN-EXPLOITED", value:"2022/07/28");
script_xref(name:"CEA-ID", value:"CEA-2019-0240");
script_name(english:"Palo Alto Networks PAN-OS < 5.0.15 / 5.1.x < 5.1.10 / 6.0.x < 6.0.6 / 6.1.x < 6.1.1 Bash Shell Remote Code Execution (Shellshock)");
script_set_attribute(attribute:"synopsis", value:
"The remote host is affected by a remote code execution vulnerability.");
script_set_attribute(attribute:"description", value:
"The remote host is running a version of Palo Alto Networks PAN-OS
prior to 5.0.15 / 5.1.10 / 6.0.6 / 6.1.1. It is, therefore, affected
by a command injection vulnerability in GNU Bash known as Shellshock,
which is due to the processing of trailing strings after function
definitions in the values of environment variables. This allows a
remote attacker to execute arbitrary code via environment variable
manipulation depending on the configuration of the system.");
script_set_attribute(attribute:"see_also", value:"https://securityadvisories.paloaltonetworks.com/Home/Detail/24");
script_set_attribute(attribute:"see_also", value:"http://seclists.org/oss-sec/2014/q3/650");
script_set_attribute(attribute:"see_also", value:"https://www.invisiblethreat.ca/post/shellshock/");
script_set_attribute(attribute:"solution", value:
"Upgrade to PAN-OS version 5.0.15 / 5.1.10 / 6.0.6 / 6.1.1 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:H/RL:OF/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2014-7169");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"exploit_framework_core", value:"true");
script_set_attribute(attribute:"exploited_by_malware", value:"true");
script_set_attribute(attribute:"metasploit_name", value:'Qmail SMTP Bash Environment Variable Injection (Shellshock)');
script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");
script_set_attribute(attribute:"in_the_news", value:"true");
script_set_attribute(attribute:"vuln_publication_date", value:"2014/09/24");
script_set_attribute(attribute:"patch_publication_date", value:"2014/09/25");
script_set_attribute(attribute:"plugin_publication_date", value:"2014/10/20");
script_set_attribute(attribute:"plugin_type", value:"combined");
script_set_attribute(attribute:"cpe", value:"cpe:/o:paloaltonetworks:pan-os");
script_set_attribute(attribute:"stig_severity", value:"I");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Palo Alto Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2014-2022 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 =~ "^6\.1($|[^0-9])")
fix = "6.1.1";
else if (version =~ "^6\.0($|[^0-9])")
fix = "6.0.6";
else if (version =~ "^5\.1($|[^0-9])")
fix = "5.1.10";
else
fix = "5.0.15";
# 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 versions : ' + 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);
Vendor | Product | Version | CPE |
---|---|---|---|
paloaltonetworks | pan-os | cpe:/o:paloaltonetworks:pan-os |