Siemens SICAM Q200 Devices Incorrect Permission Assignment For Critical Resource (CVE-2023-31238)

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

include('compat.inc');

if (description)
{
  script_id(501424);
  script_version("1.10");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/03/04");

  script_cve_id("CVE-2023-31238");

  script_name(english:"Siemens SICAM Q200 Devices Incorrect Permission Assignment For Critical Resource (CVE-2023-31238)");

  script_set_attribute(attribute:"synopsis", value:
"The remote OT asset is affected by a vulnerability.");
  script_set_attribute(attribute:"description", value:
"A vulnerability has been identified in POWER METER SICAM Q100 (All
versions < V2.60), POWER METER SICAM Q100 (All versions < V2.60),
POWER METER SICAM Q100 (All versions < V2.60), POWER METER SICAM Q100
(All versions < V2.60). Affected devices are missing cookie protection
flags when using the default settings. An attacker who gains access to
a session token can use it to impersonate a legitimate application
user.

This plugin only works with Tenable.ot.
Please visit https://www.tenable.com/products/tenable-ot for more information.");
  script_set_attribute(attribute:"see_also", value:"https://cert-portal.siemens.com/productcert/pdf/ssa-480095.pdf");
  script_set_attribute(attribute:"see_also", value:"https://cert-portal.siemens.com/productcert/pdf/ssa-887249.pdf");
  script_set_attribute(attribute:"see_also", value:"https://www.cisa.gov/news-events/ics-advisories/icsa-23-166-03");
  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 has released an update for POWER METER SICAM Q200 family and recommends updating to the latest version.

- ​POWER METER SICAM Q200 family: Update to V2.70 or later version

​Siemens has identified the following specific workarounds and mitigations users can apply to reduce risk:

- ​Do not access links from untrusted sources while logged in at Q200 devices.
- ​Restrict access to port 443/tcp to trusted IP addresses only.

​Operators of critical power systems (e.g., TSOs or DSOs) worldwide are usually required by regulations to build
resilience into the power grids by applying multi-level redundant secondary protection schemes. It is therefore
recommended that the operators check whether appropriate resilient protection measures are in place. The risk of cyber
incidents impacting the grid's reliability can thus be minimized by virtue of the grid design. Siemens strongly
recommends applying the provided security updates using the corresponding tooling and documented procedures made
available with the product. If supported by the product, an automated means to apply the security updates across
multiple product instances may be used. Siemens strongly recommends prior validation of any security update before being
applied, and supervision by trained staff of the update process in the target environment. As a general security measure
Siemens strongly recommends protecting network access with appropriate mechanisms (e.g., firewalls, segmentation, VPN).
It is advised to configure the environment according to our operational guidelines in order to run the devices in a
protected IT environment.

​Recommended security guidelines can be found at: https://www.siemens.com/gridsecurity

​For more information see the associated Siemens security advisory SSA-887249 in HTML and CSAF.

​");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:H/Au:N/C:P/I:P/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2023-31238");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_cwe_id(732);

  script_set_attribute(attribute:"vuln_publication_date", value:"2023/06/13");
  script_set_attribute(attribute:"patch_publication_date", value:"2023/06/13");
  script_set_attribute(attribute:"plugin_publication_date", value:"2023/07/31");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:siemens:q200_firmware");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Tenable.ot");

  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:q200_firmware" :
        {"versionEndExcluding" : "2.70", "family" : "SicamQ200"}
};

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