CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:C/I:C/A:C
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
99.1%
The identity authentication bypass vulnerability found in some Dahua products during the login process. Attackers can bypass device identity authentication by constructing malicious data packets.
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(502338);
script_version("1.3");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/08/21");
script_cve_id("CVE-2021-33045");
script_xref(name:"CISA-KNOWN-EXPLOITED", value:"2024/09/11");
script_name(english:"Dahua Security Cameras Improper Authentication (CVE-2021-33045)");
script_set_attribute(attribute:"synopsis", value:
"The remote OT asset is affected by a vulnerability.");
script_set_attribute(attribute:"description", value:
"The identity authentication bypass vulnerability found in some Dahua
products during the login process. Attackers can bypass device
identity authentication by constructing malicious data packets.
This plugin only works with Tenable.ot.
Please visit https://www.tenable.com/products/tenable-ot for more information.");
# http://packetstormsecurity.com/files/164423/Dahua-Authentication-Bypass.html
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?315c2c6b");
script_set_attribute(attribute:"see_also", value:"http://seclists.org/fulldisclosure/2021/Oct/13");
script_set_attribute(attribute:"see_also", value:"https://www.dahuasecurity.com/aboutUs/trustedCenter/details/582");
script_set_attribute(attribute:"solution", value:
"Refer to the vendor advisory.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
script_set_cvss_temporal_vector("CVSS2#E:F/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
script_set_cvss3_temporal_vector("CVSS:3.0/E:F/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2021-33045");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_cwe_id(287);
script_set_attribute(attribute:"vuln_publication_date", value:"2021/09/15");
script_set_attribute(attribute:"patch_publication_date", value:"2021/09/15");
script_set_attribute(attribute:"plugin_publication_date", value:"2024/07/29");
script_set_attribute(attribute:"plugin_type", value:"remote");
script_set_attribute(attribute:"cpe", value:"cpe:/o:dahuasecurity:ipc-hx1xxx_firmware");
script_set_attribute(attribute:"cpe", value:"cpe:/o:dahuasecurity:ipc-hx2xxx_firmware");
script_set_attribute(attribute:"cpe", value:"cpe:/o:dahuasecurity:ipc-hx3xxx_firmware");
script_set_attribute(attribute:"cpe", value:"cpe:/o:dahuasecurity:ipc-hx4xxx_firmware");
script_set_attribute(attribute:"cpe", value:"cpe:/o:dahuasecurity:ipc-hum7xxx_firmware");
script_set_attribute(attribute:"cpe", value:"cpe:/o:dahuasecurity:ipc-hx8xxx_firmware");
script_set_attribute(attribute:"generated_plugin", value:"former");
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/DahuaSecurity");
exit(0);
}
include('tenable_ot_cve_funcs.inc');
get_kb_item_or_exit('Tenable.ot/DahuaSecurity');
var asset = tenable_ot::assets::get(vendor:'DahuaSecurity');
var vuln_cpes = {
"cpe:/o:dahuasecurity:ipc-hx1xxx_firmware" :
{"versionEndExcluding" : "2020-05-01", "family" : "DahuaSecurity"},
"cpe:/o:dahuasecurity:ipc-hx2xxx_firmware" :
{"versionEndExcluding" : "2020-05-01", "family" : "DahuaSecurity"},
"cpe:/o:dahuasecurity:ipc-hx3xxx_firmware" :
{"versionEndExcluding" : "2020-05-01", "family" : "DahuaSecurity"},
"cpe:/o:dahuasecurity:ipc-hx4xxx_firmware" :
{"versionEndExcluding" : "2020-05-01", "family" : "DahuaSecurity"},
"cpe:/o:dahuasecurity:ipc-hum7xxx_firmware" :
{"versionEndExcluding" : "2020-05-01", "family" : "DahuaSecurity"},
"cpe:/o:dahuasecurity:ipc-hx8xxx_firmware" :
{"versionEndExcluding" : "2020-05-01", "family" : "DahuaSecurity"},
};
tenable_ot::cve::compare_and_report(asset:asset, cpes:vuln_cpes, severity:SECURITY_HOLE);
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:C/I:C/A:C
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
99.1%