Siemens SCALANCE X-200RNA Switch Devices Concurrent Execution Using Shared Resource with Improper Synchronization (CVE-2018-15473)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
##

include('compat.inc');

if (description)
{
  script_id(500839);
  script_version("1.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/04/22");

  script_cve_id("CVE-2018-15473");
  script_xref(name:"EDB-ID", value:"45233");
  script_xref(name:"EDB-ID", value:"45210");
  script_xref(name:"EDB-ID", value:"45939");
  script_xref(name:"DSA", value:"DSA-4280");
  script_xref(name:"GLSA", value:"GLSA-201810-03");
  script_xref(name:"USN", value:"USN-3809-1");
  script_xref(name:"RHSA", value:"RHSA-2019:0711");
  script_xref(name:"RHSA", value:"RHSA-2019:2143");

  script_name(english:"Siemens SCALANCE X-200RNA Switch Devices Concurrent Execution Using Shared Resource with Improper Synchronization (CVE-2018-15473)");

  script_set_attribute(attribute:"synopsis", value:
"The remote OT asset is affected by a vulnerability.");
  script_set_attribute(attribute:"description", value:
"OpenSSH through 7.7 is prone to a user enumeration vulnerability due to not delaying bailout for an invalid
authenticating user until after the packet containing the request has been fully parsed, related to auth2-gss.c,
auth2-hostbased.c, and auth2-pubkey.c.

  - OpenSSH through 7.7 is prone to a user enumeration vulnerability due to not delaying bailout for an
    invalid authenticating user until after the packet containing the request has been fully parsed, related
    to auth2-gss.c, auth2-hostbased.c, and auth2-pubkey.c. (CVE-2018-15473)

This plugin only works with Tenable.ot. Please visit https://www.tenable.com/products/tenable-ot for more information.");
  # https://github.com/openbsd/src/commit/779974d35b4859c07bc3cb8a12c74b43b0a7d1e0
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?d1488d7c");
  script_set_attribute(attribute:"see_also", value:"https://bugs.debian.org/906236");
  script_set_attribute(attribute:"see_also", value:"http://www.openwall.com/lists/oss-security/2018/08/15/5");
  script_set_attribute(attribute:"see_also", value:"http://www.securitytracker.com/id/1041487");
  script_set_attribute(attribute:"see_also", value:"https://lists.debian.org/debian-lts-announce/2018/08/msg00022.html");
  script_set_attribute(attribute:"see_also", value:"https://www.exploit-db.com/exploits/45233/");
  script_set_attribute(attribute:"see_also", value:"https://www.exploit-db.com/exploits/45210/");
  script_set_attribute(attribute:"see_also", value:"https://www.debian.org/security/2018/dsa-4280");
  script_set_attribute(attribute:"see_also", value:"http://www.securityfocus.com/bid/105140");
  script_set_attribute(attribute:"see_also", value:"https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2018-0011");
  script_set_attribute(attribute:"see_also", value:"https://security.gentoo.org/glsa/201810-03");
  script_set_attribute(attribute:"see_also", value:"https://security.netapp.com/advisory/ntap-20181101-0001/");
  script_set_attribute(attribute:"see_also", value:"https://usn.ubuntu.com/3809-1/");
  script_set_attribute(attribute:"see_also", value:"https://www.cisa.gov/news-events/ics-advisories/icsa-22-349-21");
  script_set_attribute(attribute:"see_also", value:"https://www.exploit-db.com/exploits/45939/");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2019:0711");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2019:2143");
  script_set_attribute(attribute:"see_also", value:"https://www.oracle.com/security-alerts/cpujan2020.html");
  script_set_attribute(attribute:"see_also", value:"https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf");
  script_set_attribute(attribute:"solution", value:
"The following text was originally created by the Cybersecurity and Infrastructure Security Agency (CISA). The original
can be found at CISA.gov.

Siemens released updates for the affected product and recommends updating to the latest version: 

- Update to V3.2.7 or later version.

Siemens identified the following specific workarounds and mitigations customers can apply to reduce the risk: 

- Restrict access to the affected systems, especially to ports 22/tcp and 443/tcp to trusted IP addresses only. 
- Deactivate the webserver if not required, and if deactivation is supported by the product.

As a general security measure, Siemens recommends protecting network access to devices with appropriate mechanisms. In
order to operate the devices in a protected IT environment, Siemens recommends configuring the environment according to
Siemens' operational guidelines for industrial security and following the recommendations in the product manuals.
Siemens provides additional information on industrial security.

For further inquiries on security vulnerabilities in Siemens products and solutions, please contact Siemens. 

For more information, see the associated Siemens security advisory SSA-412672 in HTML and CSAF.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:H/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:H/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2018-15473");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploited_by_malware", value:"true");
  script_set_attribute(attribute:"exploit_framework_canvas", value:"true");
  script_set_attribute(attribute:"canvas_package", value:"CANVAS");
  script_cwe_id(362);

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/08/17");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/08/17");
  script_set_attribute(attribute:"plugin_publication_date", value:"2023/02/23");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:siemens:scalance_x204rna_firmware");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
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  script_copyright(english:"This script is Copyright (C) 2023-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("tenable_ot_api_integration.nasl");
  script_require_keys("Tenable.ot/Siemens");

  exit(0);
}


include('tenable_ot_cve_funcs.inc');

get_kb_item_or_exit('Tenable.ot/Siemens');

var asset = tenable_ot::assets::get(vendor:'Siemens');

var vuln_cpes = {
    "cpe:/o:siemens:scalance_x204rna_firmware" :
        {"versionEndExcluding" : "3.2.7", "family" : "SCALANCEX200"}
};

tenable_ot::cve::compare_and_report(asset:asset, cpes:vuln_cpes, severity:SECURITY_WARNING);