4 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:S/C:N/I:N/A:P
6.5 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
0.017 Low
EPSS
Percentile
87.8%
The version of Samba running on the remote host is 4.10.0 prior to 4.10.5. It is, therefore, potentially affected by a denial of service vulnerability in the AD DC LDAP server process.
Note that Nessus has not tested for this issue but has instead relied only on the application’s self-reported version number.
#
# (C) Tenable Network Security, Inc.
#
include("compat.inc");
if (description)
{
script_id(126308);
script_version("1.3");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/06/03");
script_cve_id("CVE-2019-12436");
script_bugtraq_id(108823);
script_xref(name:"IAVA", value:"2019-A-0209-S");
script_name(english:"4.10.0 < 4.10.5 AC DC LDAP Server Denial of Service Vulnerability (CVE-2019-12436)");
script_summary(english:"Checks the version of Samba.");
script_set_attribute(attribute:"synopsis", value:
"The remote Samba server is potentially affected by a denial of service vulnerability.");
script_set_attribute(attribute:"description", value:
"The version of Samba running on the remote host is 4.10.0 prior to
4.10.5. It is, therefore, potentially affected by a denial of service
vulnerability in the AD DC LDAP server process.
Note that Nessus has not tested for this issue but has instead relied
only on the application's self-reported version number.");
script_set_attribute(attribute:"see_also", value:"https://www.samba.org/samba/security/CVE-2019-12436.html");
script_set_attribute(attribute:"see_also", value:"https://www.samba.org/samba/history/samba-4.10.5.html");
script_set_attribute(attribute:"solution", value:
"Upgrade to Samba version 4.10.5 or later.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:N/I:N/A:P");
script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H");
script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-12436");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"vuln_publication_date", value:"2019/06/19");
script_set_attribute(attribute:"patch_publication_date", value:"2019/06/19");
script_set_attribute(attribute:"plugin_publication_date", value:"2019/06/27");
script_set_attribute(attribute:"potential_vulnerability", value:"true");
script_set_attribute(attribute:"plugin_type", value:"remote");
script_set_attribute(attribute:"cpe", value:"cpe:/a:samba:samba");
script_set_attribute(attribute:"stig_severity", value:"I");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Misc.");
script_copyright(english:"This script is Copyright (C) 2019-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("smb_nativelanman.nasl");
script_require_keys("SMB/NativeLanManager", "SMB/samba", "Settings/ParanoidReport");
exit(0);
}
include("audit.inc");
include("global_settings.inc");
include("misc_func.inc");
include("vcf.inc");
include("vcf_extras.inc");
if (report_paranoia < 2) audit(AUDIT_PARANOID);
app = vcf::samba::get_app_info();
vcf::check_granularity(app_info:app, sig_segments:3);
constraints = [
{"min_version":"4.10.0rc0", "fixed_version":"4.10.5"}
];
vcf::check_version_and_report(app_info:app, constraints:constraints, severity:SECURITY_WARNING, strict:FALSE);
4 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:S/C:N/I:N/A:P
6.5 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
0.017 Low
EPSS
Percentile
87.8%