4.3 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:N/I:P/A:N
0.948 High
EPSS
Percentile
99.3%
According to its model number and software version, the remote Xerox WorkCentre 6400 device is affected by a security feature bypass vulnerability, known as FREAK (Factoring attack on RSA-EXPORT Keys), due to the support of weak EXPORT_RSA cipher suites with keys less than or equal to 512 bits. A man-in-the-middle attacker may be able to downgrade the SSL/TLS connection to use EXPORT_RSA cipher suites which can be factored in a short amount of time, allowing the attacker to intercept and decrypt the traffic.
#
# (C) Tenable Network Security, Inc.
#
include("compat.inc");
if (description)
{
script_id(87325);
script_version("1.3");
script_cvs_date("Date: 2018/08/07 16:46:51");
script_cve_id("CVE-2015-0204");
script_bugtraq_id(71936);
script_xref(name:"CERT", value:"243585");
script_name(english:"Xerox WorkCentre 6400 OpenSSL RSA Temporary Key Handling EXPORT_RSA Ciphers Downgrade MitM (XRX15AP) (FREAK)");
script_summary(english:"Checks system software version of Xerox WorkCentre devices.");
script_set_attribute(attribute:"synopsis", value:
"The remote multi-function device is affected by a man-in-the-middle
vulnerability.");
script_set_attribute(attribute:"description", value:
"According to its model number and software version, the remote Xerox
WorkCentre 6400 device is affected by a security feature bypass
vulnerability, known as FREAK (Factoring attack on RSA-EXPORT Keys),
due to the support of weak EXPORT_RSA cipher suites with keys less
than or equal to 512 bits. A man-in-the-middle attacker may be able to
downgrade the SSL/TLS connection to use EXPORT_RSA cipher suites which
can be factored in a short amount of time, allowing the attacker to
intercept and decrypt the traffic.");
# https://www.xerox.com/download/security/security-bulletin/2e28e-523433d609b1d/cert_Security_Mini-_Bulletin_XRX15AP_for_WC6400_v1-0.pdf
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?ff70a70b");
script_set_attribute(attribute:"see_also", value:"https://www.smacktls.com/#freak");
script_set_attribute(attribute:"solution", value:
"Apply the appropriate cumulative update as described in the Xerox
security bulletin in the referenced URL.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:N");
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:"2015/01/06");
script_set_attribute(attribute:"patch_publication_date", value:"2015/10/23");
script_set_attribute(attribute:"plugin_publication_date", value:"2015/12/11");
script_set_attribute(attribute:"plugin_type", value:"remote");
script_set_attribute(attribute:"cpe", value:"cpe:/h:xerox:workcentre");
script_set_attribute(attribute:"in_the_news", value:"true");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Misc.");
script_copyright(english:"This script is Copyright (C) 2015-2018 Tenable Network Security, Inc.");
script_dependencies("xerox_workcentre_detect.nasl");
script_require_keys("www/xerox_workcentre", "www/xerox_workcentre/model", "www/xerox_workcentre/ssw");
exit(0);
}
include("audit.inc");
include("global_settings.inc");
include("misc_func.inc");
# Get model and system software version
model = get_kb_item_or_exit("www/xerox_workcentre/model");
ver = get_kb_item_or_exit("www/xerox_workcentre/ssw");
if (model =~ "^6400$")
fix = "061.070.105.25200";
else
audit(AUDIT_HOST_NOT, "an affected Xerox WebCentre model");
if (ver_compare(ver:ver, fix:fix, strict:FALSE) >= 0)
audit(AUDIT_INST_VER_NOT_VULN, "Xerox WorkCentre " + model + " System SW", ver);
if (report_verbosity > 0)
{
report =
'\n Model : Xerox WorkCentre ' + model +
'\n Installed system software version : ' + ver +
'\n Fixed system software version : ' + fix + '\n';
security_warning(port:0, extra:report);
}
else security_warning(0);
Vendor | Product | Version | CPE |
---|---|---|---|
xerox | workcentre | cpe:/h:xerox:workcentre |