7.5 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
9.8 High
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
0.003 Low
EPSS
Percentile
71.7%
An improper authentication vulnerability exists in SAP NetWeaver Application Server ABAP. ABAP Server and ABAP Platform do not create information about internal and external RFC user in distinguished and consistent format, which may be exploited by malicious users to obtain illegitimate access to the system.
Note that Nessus has not tested for this issue but has instead relied only on the application’s self-reported version number.
#%NASL_MIN_LEVEL 70300
##
# (C) Tenable Network Security, Inc.
##
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(150417);
script_version("1.4");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/06/11");
script_cve_id("CVE-2021-27610");
script_xref(name:"IAVA", value:"2021-A-0281");
script_name(english:"SAP NetWeaver AS ABAP Improper Authentication (June 2021)");
script_set_attribute(attribute:"synopsis", value:
"The remote SAP NetWeaver server is affected by an improper authentication vulnerability.");
script_set_attribute(attribute:"description", value:
"An improper authentication vulnerability exists in SAP NetWeaver Application Server ABAP. ABAP Server
and ABAP Platform do not create information about internal and external RFC user in distinguished and
consistent format, which may be exploited by malicious users to obtain illegitimate access to the system.
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://launchpad.support.sap.com/#/notes/3007182");
# https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=578125999
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?98cbee9d");
script_set_attribute(attribute:"solution", value:
"Apply the appropriate patch according to the vendor advisory.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/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:N/UI:N/S:U/C:H/I:H/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-2021-27610");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"vuln_publication_date", value:"2021/06/08");
script_set_attribute(attribute:"patch_publication_date", value:"2021/06/08");
script_set_attribute(attribute:"plugin_publication_date", value:"2021/06/09");
script_set_attribute(attribute:"potential_vulnerability", value:"true");
script_set_attribute(attribute:"plugin_type", value:"remote");
script_set_attribute(attribute:"cpe", value:"cpe:/a:sap:netweaver_application_server");
script_set_attribute(attribute:"stig_severity", value:"I");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Web Servers");
script_copyright(english:"This script is Copyright (C) 2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("sap_netweaver_as_web_detect.nbin");
script_require_keys("installed_sw/SAP Netweaver Application Server (AS)", "Settings/ParanoidReport");
script_require_ports("Services/www", 80, 443, 8000, 50000);
exit(0);
}
include('vcf_extras_sap.inc');
if (report_paranoia < 2)
audit(AUDIT_PARANOID);
var app_info = vcf::sap_netweaver_as::get_app_info();
var fix = 'See vendor advisory';
var constraints = [
{'equal' : '700', 'fixed_display' : fix },
{'equal' : '701', 'fixed_display' : fix },
{'equal' : '702', 'fixed_display' : fix },
{'equal' : '731', 'fixed_display' : fix },
{'equal' : '740', 'fixed_display' : fix },
{'equal' : '750', 'fixed_display' : fix },
{'equal' : '751', 'fixed_display' : fix },
{'equal' : '752', 'fixed_display' : fix },
{'equal' : '753', 'fixed_display' : fix },
{'equal' : '754', 'fixed_display' : fix },
{'equal' : '755', 'fixed_display' : fix },
{'equal' : '804', 'fixed_display' : fix }
];
vcf::sap_netweaver_as::check_version_and_report(app_info:app_info,
constraints:constraints,
severity:SECURITY_HOLE,
abap:TRUE);
Vendor | Product | Version | CPE |
---|---|---|---|
sap | netweaver_application_server | cpe:/a:sap:netweaver_application_server |
7.5 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
9.8 High
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
0.003 Low
EPSS
Percentile
71.7%