7.8 High
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
7.5 High
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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
0.016 Low
EPSS
Percentile
87.3%
The MikroTik Router hAP Lite 6.25 has no protection mechanism for unsolicited TCP ACK packets in the case of a fast network connection, which allows remote attackers to cause a denial of service (CPU consumption) by sending many ACK packets. After the attacker stops the exploit, the CPU usage is 100% and the router requires a reboot for normal operation.
This plugin only works with Tenable.ot.
Please visit https://www.tenable.com/products/tenable-ot for more information.
#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
##
include('compat.inc');
if (description)
{
script_id(502016);
script_version("1.1");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/02/28");
script_cve_id("CVE-2017-6444");
script_xref(name:"EDB-ID", value:"41601");
script_name(english:"MikroTik RouterOS Uncontrolled Resource Consumption (CVE-2017-6444)");
script_set_attribute(attribute:"synopsis", value:
"The remote OT asset is affected by a vulnerability.");
script_set_attribute(attribute:"description", value:
"The MikroTik Router hAP Lite 6.25 has no protection mechanism for
unsolicited TCP ACK packets in the case of a fast network connection,
which allows remote attackers to cause a denial of service (CPU
consumption) by sending many ACK packets. After the attacker stops the
exploit, the CPU usage is 100% and the router requires a reboot for
normal operation.
This plugin only works with Tenable.ot.
Please visit https://www.tenable.com/products/tenable-ot for more information.");
# https://packetstormsecurity.com/files/141449/Mikrotik-Hap-Lite-6.25-Denial-Of-Service.html
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?7a2d2bca");
script_set_attribute(attribute:"see_also", value:"https://cxsecurity.com/issue/WLB-2017030029");
script_set_attribute(attribute:"see_also", value:"http://www.exploitalert.com/view-details.html?id=26137");
script_set_attribute(attribute:"see_also", value:"https://www.exploit-db.com/exploits/41601/");
script_set_attribute(attribute:"solution", value:
"Refer to the vendor advisory.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C");
script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H");
script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2017-6444");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_cwe_id(400);
script_set_attribute(attribute:"vuln_publication_date", value:"2017/03/12");
script_set_attribute(attribute:"patch_publication_date", value:"2017/03/12");
script_set_attribute(attribute:"plugin_publication_date", value:"2024/02/27");
script_set_attribute(attribute:"plugin_type", value:"remote");
script_set_attribute(attribute:"cpe", value:"cpe:/o:mikrotik:routeros:6.25");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Tenable.ot");
script_copyright(english:"This script is Copyright (C) 2024 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("tenable_ot_api_integration.nasl");
script_require_keys("Tenable.ot/MikroTik");
exit(0);
}
include('tenable_ot_cve_funcs.inc');
get_kb_item_or_exit('Tenable.ot/MikroTik');
var asset = tenable_ot::assets::get(vendor:'MikroTik');
var vuln_cpes = {
"cpe:/o:mikrotik:routeros:6.25" :
{"versionEndIncluding" : "6.25", "versionStartIncluding" : "6.25", "family" : "RouterOS"}
};
tenable_ot::cve::compare_and_report(asset:asset, cpes:vuln_cpes, severity:SECURITY_HOLE);
7.8 High
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
7.5 High
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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
0.016 Low
EPSS
Percentile
87.3%