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
EPSS
Percentile
45.0%
According to its self-reported version, the remote Cisco Unified Communications Manager (CUCM) device is affected by a security bypass vulnerability due to improper validation of the SAN field in TLS certificates. A remote attacker can impersonate a Cisco TelePresense Video Communication Server (VCS) core device to perform man-in-the-middle (MitM) attacks.
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(80283);
script_version("1.7");
script_set_attribute(attribute:"plugin_modification_date", value:"2022/04/11");
script_cve_id("CVE-2014-7991");
script_bugtraq_id(71013);
script_xref(name:"CISCO-BUG-ID", value:"CSCuq86376");
script_name(english:"Cisco Unified Communications Manager TLS SAN Field MitM (CSCuq86376)");
script_set_attribute(attribute:"synopsis", value:
"The remote device is affected by a security bypass vulnerability.");
script_set_attribute(attribute:"description", value:
"According to its self-reported version, the remote Cisco Unified
Communications Manager (CUCM) device is affected by a security bypass
vulnerability due to improper validation of the SAN field in TLS
certificates. A remote attacker can impersonate a Cisco TelePresense
Video Communication Server (VCS) core device to perform
man-in-the-middle (MitM) attacks.");
# https://tools.cisco.com/security/center/viewAlert.x?alertId=36381
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?4cf7ec63");
script_set_attribute(attribute:"see_also", value:"https://tools.cisco.com/security/center/viewAlert.x?alertId=36381");
script_set_attribute(attribute:"solution", value:
"Apply the relevant patch referenced in the Cisco bug advisory.");
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:"2014/11/10");
script_set_attribute(attribute:"patch_publication_date", value:"2014/12/08");
script_set_attribute(attribute:"plugin_publication_date", value:"2014/12/29");
script_set_attribute(attribute:"plugin_type", value:"combined");
script_set_attribute(attribute:"cpe", value:"cpe:/a:cisco:unified_communications_manager");
script_set_attribute(attribute:"thorough_tests", value:"true");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"CISCO");
script_copyright(english:"This script is Copyright (C) 2014-2022 Tenable Network Security, Inc.");
script_dependencies("cisco_ucm_detect.nbin");
script_require_keys("Host/Cisco/CUCM/Version", "Host/Cisco/CUCM/Version_Display");
exit(0);
}
include("audit.inc");
include("global_settings.inc");
include("misc_func.inc");
ver = get_kb_item_or_exit("Host/Cisco/CUCM/Version");
ver_display = get_kb_item_or_exit("Host/Cisco/CUCM/Version_Display");
app_name = "Cisco Unified Communications Manager (CUCM)";
fixed_ver = "10.5.2.10000-2";
if (ver_compare(ver:ver, fix:"10.5.2.10000.2", strict:FALSE) >= 0)
audit(AUDIT_INST_VER_NOT_VULN, app_name, ver_display);
if (report_verbosity > 0)
{
report =
'\n Cisco bug ID : CSCuq86376' +
'\n Installed release : ' + ver_display +
'\n Fixed release : ' + fixed_ver +
'\n';
security_warning(port:0, extra:report);
}
else security_warning(0);