| code | #
# (C) Tenable Network Security, Inc.
#
include("compat.inc");
if (description)
{
script_id(102018);
script_version("1.5");
script_cvs_date("Date: 2018/07/06 11:26:06");
script_cve_id(
"CVE-2017-6746",
"CVE-2017-6748",
"CVE-2017-6749",
"CVE-2017-6750",
"CVE-2017-6751"
);
script_bugtraq_id(
99875,
99877,
99918,
99924
);
script_xref(name:"CISCO-BUG-ID", value:"CSCvd88862");
script_xref(name:"CISCO-BUG-ID", value:"CSCvd88855");
script_xref(name:"CISCO-BUG-ID", value:"CSCvd88865");
script_xref(name:"CISCO-BUG-ID", value:"CSCve06124");
script_xref(name:"CISCO-BUG-ID", value:"CSCvd88863");
script_xref(name:"CISCO-SA", value:"cisco-sa-20170719-wsa1");
script_xref(name:"CISCO-SA", value:"cisco-sa-20170719-wsa2");
script_xref(name:"CISCO-SA", value:"cisco-sa-20170719-wsa3");
script_xref(name:"CISCO-SA", value:"cisco-sa-20170719-wsa4");
script_xref(name:"CISCO-SA", value:"cisco-sa-20170719-wsa5");
script_name(english:"Cisco Web Security Appliance Multiple Vulnerabilities");
script_summary(english:"Checks the Cisco Web Security Appliance (WSA) version.");
script_set_attribute(attribute:"synopsis", value:
"The remote device is missing a vendor-supplied security patch.");
script_set_attribute(attribute:"description", value:
"According to its self-reported version, the remote Cisco Web Security
Appliance (WSA) device is affected by one or more vulnerabilities :
- An unspecified flaw exists in the web-based interface
due to improper validation of user-supplied input. An
authenticated, remote attacker who has valid
administrator credentials can exploit this vulnerability
to inject arbitrary commands and thereby elevate
privileges from administrator to root. (CVE-2017-6746)
- An unspecified flaw exists in the CLI parser due to
improper sanitization of user-supplied input. A local
attacker can exploit this to inject arbitrary commands
and thereby escape the CLI subshell and gain root
privileges. (CVE-2017-6748)
- A stored cross-site scripting (XSS) vulnerability exists
in the web-based management interface due to improper
validation of user-supplied input before returning it to
users. An authenticated, remote attacker can exploit
this, by convincing a user to follow a specially
crafted link, to execute arbitrary script code in a
user's browser session. (CVE-2017-6749)
- A security vulnerability exists due to WSA being
installed with a user account that has a default and
static password. An unauthenticated, remote attacker can
exploit this to gain privileged access to certain
portions of the web-based management interface, allowing
the attacker to download reports or disclose the
device's serial number. (CVE-2017-6750)
- A security bypass vulnerability exists in the web proxy
functionality due to a failure to deny traffic that is
forwarded from the web proxy interface to the
administrative management interface of a device. An
unauthenticated, remote attacker can exploit this issue
to bypass access restrictions by sending a specially
crafted stream of HTTP or HTTPS traffic to the web proxy
interface of an affected device. (CVE-2017-6451)");
# https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170719-wsa1
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?142f72cc");
# https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170719-wsa2
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?31a4794a");
# https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170719-wsa3
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?5fe44129");
# https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170719-wsa4
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?2c672cb4");
# https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170719-wsa5
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?0048c64e");
script_set_attribute(attribute:"see_also", value:"https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvd88862");
script_set_attribute(attribute:"see_also", value:"https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvd88855");
script_set_attribute(attribute:"see_also", value:"https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvd88865");
script_set_attribute(attribute:"see_also", value:"https://bst.cloudapps.cisco.com/bugsearch/bug/CSCve06124");
script_set_attribute(attribute:"see_also", value:"https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvd88863");
script_set_attribute(attribute:"solution", value:
"Upgrade to the relevant fixed version referenced in Cisco bug IDs
CSCvd88862, CSCvd88855, CSCvd88865, CSCve06124, and CSCvd88863.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C");
script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H");
script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/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:"2017/07/19");
script_set_attribute(attribute:"patch_publication_date", value:"2017/07/19");
script_set_attribute(attribute:"plugin_publication_date", value:"2017/07/27");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/o:cisco:web_security_appliance");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"CISCO");
script_copyright(english:"This script is Copyright (C) 2017-2018 Tenable Network Security, Inc.");
script_dependencies("cisco_wsa_version.nasl");
script_require_keys("Host/AsyncOS/Cisco Web Security Appliance/DisplayVersion", "Host/AsyncOS/Cisco Web Security Appliance/Version");
exit(0);
}
include("audit.inc");
include("global_settings.inc");
include("cisco_func.inc");
display_ver = get_kb_item_or_exit('Host/AsyncOS/Cisco Web Security Appliance/DisplayVersion');
ver = get_kb_item_or_exit('Host/AsyncOS/Cisco Web Security Appliance/Version');
if(ver == "10.0.0" ||
ver == "10.0.0.232" ||
ver == "10.0.0.233" ||
ver == "10.0" ||
ver == "10.1.0" ||
ver == "10.1.0.204" ||
ver == "10.1.1" ||
ver == "10.1.1.230" ||
ver == "10.1.1.234" ||
ver == "10.1" ||
ver == "10.5.0" ||
ver == "10.5.0.358" ||
ver == "10.5.1" ||
ver == "10.5" ||
ver == "11.0.0" ||
ver == "11.0.0.613" ||
ver == "11.0.0.641" ||
ver == "11.0" ||
ver == "9.0.0" ||
ver == "9.0.0.162" ||
ver == "9.0.0.193" ||
ver == "9.0.0.485" ||
ver == "9.0" )
{
security_report_cisco(
port: 0,
severity: SECURITY_HOLE,
version: ver,
bug_id: "CSCvd88862, CSCvd88855, CSCvd88865, CSCve06124, CSCvd88863",
fix: "See advisory",
xss: TRUE
);
exit(0);
}
else
audit(AUDIT_INST_VER_NOT_VULN, 'Cisco WSA', display_ver);
|