CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:N/I:N/A:C
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
Percentile
77.8%
A vulnerability in the email message filtering feature of Cisco AsyncOS Software for Cisco Email
Security Appliances could allow an unauthenticated, remote attacker to cause a denial of service
(DoS) condition on an affected device.
The vulnerability exists because the message filtering feature of the affected software does not
properly validate compressed message attachments that contain malformed Design (DGN) files. An
attacker could exploit this vulnerability by sending a crafted email message, which has a compressed
attachment containing a malformed DGN file, through an affected device. While the affected software
filters the attachment, memory could be consumed at a high rate and ultimately exhausted, causing
the filtering process to restart and resulting in a DoS condition. After the filtering process
restarts, the software resumes filtering for the same attachment, causing the filtering process to
exhaust memory and restart again. A successful exploit of this vulnerability could allow the
attacker to cause a repeated DoS condition.
Cisco has released software updates that address this vulnerability. There are no workarounds that
address this vulnerability.
# SPDX-FileCopyrightText: 2016 Greenbone AG
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-only
CPE = "cpe:/h:cisco:email_security_appliance";
if (description)
{
script_oid("1.3.6.1.4.1.25623.1.0.140029");
script_cve_id("CVE-2016-1481");
script_tag(name:"cvss_base", value:"7.8");
script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:N/I:N/A:C");
script_version("2023-07-20T05:05:17+0000");
script_name("Cisco Email Security Appliance Malformed DGN File Attachment Denial of Service Vulnerability");
script_xref(name:"URL", value:"http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20161026-esa1");
script_tag(name:"vuldetect", value:"Checks if a vulnerable version is present on the target host.");
script_tag(name:"solution", value:"See the referenced vendor advisory for a solution.");
script_tag(name:"summary", value:"A vulnerability in the email message filtering feature of Cisco AsyncOS Software for Cisco Email
Security Appliances could allow an unauthenticated, remote attacker to cause a denial of service
(DoS) condition on an affected device.
The vulnerability exists because the message filtering feature of the affected software does not
properly validate compressed message attachments that contain malformed Design (DGN) files. An
attacker could exploit this vulnerability by sending a crafted email message, which has a compressed
attachment containing a malformed DGN file, through an affected device. While the affected software
filters the attachment, memory could be consumed at a high rate and ultimately exhausted, causing
the filtering process to restart and resulting in a DoS condition. After the filtering process
restarts, the software resumes filtering for the same attachment, causing the filtering process to
exhaust memory and restart again. A successful exploit of this vulnerability could allow the
attacker to cause a repeated DoS condition.
Cisco has released software updates that address this vulnerability. There are no workarounds that
address this vulnerability.");
script_tag(name:"qod_type", value:"package");
script_tag(name:"solution_type", value:"VendorFix");
script_tag(name:"last_modification", value:"2023-07-20 05:05:17 +0000 (Thu, 20 Jul 2023)");
script_tag(name:"severity_vector", value:"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H");
script_tag(name:"severity_origin", value:"NVD");
script_tag(name:"severity_date", value:"2017-07-29 01:34:00 +0000 (Sat, 29 Jul 2017)");
script_tag(name:"creation_date", value:"2016-10-27 14:14:28 +0200 (Thu, 27 Oct 2016)");
script_category(ACT_GATHER_INFO);
script_family("CISCO");
script_copyright("Copyright (C) 2016 Greenbone AG");
script_dependencies("gb_cisco_esa_version.nasl");
script_mandatory_keys("cisco_esa/installed");
exit(0);
}
include("host_details.inc");
include("version_func.inc");
if( ! version = get_app_version( cpe:CPE ) ) exit( 0 );
affected = make_list(
'8.5.0-000',
'8.5.0-ER1-198',
'8.5.6-052',
'8.5.6-073',
'8.5.6-074',
'8.5.6-106',
'8.5.6-113',
'8.5.7-042',
'8.6.0',
'8.6.0-011',
'8.9.0',
'8.9.1-000',
'8.9.2-032',
'9.0.0',
'9.0.0-212',
'9.0.0-461',
'9.0.5-000',
'9.1.0',
'9.1.0-011',
'9.1.0-101',
'9.1.0-032',
'9.1.1-000',
'9.4.0',
'9.4.4-000',
'9.5.0-000',
'9.5.0-201',
'9.6.0-000',
'9.6.0-042',
'9.6.0-051',
'9.7.0-125' );
foreach af ( affected )
{
if( version == af )
{
report = report_fixed_ver( installed_version:version, fixed_version: "See advisory" );
security_message( port:0, data:report );
exit( 0 );
}
}
exit( 99 );
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:N/I:N/A:C
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
Percentile
77.8%