Siemens SCALANCE X-200RNA Switch Devices Path Traversal (CVE-2019-6111)

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

include('compat.inc');

if (description)
{
  script_id(500898);
  script_version("1.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/01/04");

  script_cve_id("CVE-2019-6111");
  script_xref(name:"EDB-ID", value:"46193");
  script_xref(name:"USN", value:"USN-3885-1");
  script_xref(name:"USN", value:"USN-3885-2");
  script_xref(name:"DSA", value:"DSA-4387");
  script_xref(name:"GLSA", value:"GLSA-201903-16");
  script_xref(name:"FEDORA", value:"FEDORA-2019-0f4190cdb0");
  script_xref(name:"SuSE", value:"openSUSE-SU-2019:1602");
  script_xref(name:"FREEBSD", value:"FreeBSD-EN-19:10");
  script_xref(name:"RHSA", value:"RHSA-2019:3702");

  script_name(english:"Siemens SCALANCE X-200RNA Switch Devices Path Traversal (CVE-2019-6111)");

  script_set_attribute(attribute:"synopsis", value:
"The remote OT asset is affected by a vulnerability.");
  script_set_attribute(attribute:"description", value:
"An issue was discovered in OpenSSH 7.9. Due to the scp implementation being derived from 1983 rcp, the server chooses
which files/directories are sent to the client. However, the scp client only performs cursory validation of the object
name returned (only directory traversal attacks are prevented). A malicious scp server (or Man-in-The-Middle attacker)
can overwrite arbitrary files in the scp client target directory. If recursive operation (-r) is performed, the server
can manipulate subdirectories as well (for example, to overwrite the .ssh/authorized_keys file).

  - An issue was discovered in OpenSSH 7.9. Due to the scp implementation being derived from 1983 rcp, the
    server chooses which files/directories are sent to the client. However, the scp client only performs
    cursory validation of the object name returned (only directory traversal attacks are prevented). A
    malicious scp server (or Man-in-The-Middle attacker) can overwrite arbitrary files in the scp client
    target directory. If recursive operation (-r) is performed, the server can manipulate subdirectories as
    well (for example, to overwrite the .ssh/authorized_keys file). (CVE-2019-6111)

This plugin only works with Tenable.ot. Please visit https://www.tenable.com/products/tenable-ot for more information.");
  # https://lists.apache.org/thread.html/c45d9bc90700354b58fb7455962873c44229841880dcb64842fa7d23%40%3Cdev.mina.apache.org%3E
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?3636e0a7");
  # https://lists.apache.org/thread.html/e47597433b351d6e01a5d68d610b4ba195743def9730e49561e8cf3f%40%3Cdev.mina.apache.org%3E
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?4d26567d");
  script_set_attribute(attribute:"see_also", value:"https://sintonen.fi/advisories/scp-client-multiple-vulnerabilities.txt");
  script_set_attribute(attribute:"see_also", value:"https://cvsweb.openbsd.org/src/usr.bin/ssh/scp.c");
  script_set_attribute(attribute:"see_also", value:"https://www.exploit-db.com/exploits/46193/");
  script_set_attribute(attribute:"see_also", value:"https://usn.ubuntu.com/3885-1/");
  script_set_attribute(attribute:"see_also", value:"https://www.debian.org/security/2019/dsa-4387");
  script_set_attribute(attribute:"see_also", value:"https://security.netapp.com/advisory/ntap-20190213-0001/");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1677794");
  script_set_attribute(attribute:"see_also", value:"https://usn.ubuntu.com/3885-2/");
  script_set_attribute(attribute:"see_also", value:"https://security.gentoo.org/glsa/201903-16");
  script_set_attribute(attribute:"see_also", value:"https://lists.debian.org/debian-lts-announce/2019/03/msg00030.html");
  script_set_attribute(attribute:"see_also", value:"http://www.openwall.com/lists/oss-security/2019/04/18/1");
  # https://lists.apache.org/thread.html/c7301cab36a86825359e1b725fc40304d1df56dc6d107c1fe885148b%40%3Cdev.mina.apache.org%3E
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?c601aafc");
  # https://lists.apache.org/thread.html/d540139359de999b0f1c87d05b715be4d7d4bec771e1ae55153c5c7a%40%3Cdev.mina.apache.org%3E
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?af028629");
  # https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W3YVQ2BPTOVDCFDVNC2GGF5P5ISFG37G/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?e31ba540");
  script_set_attribute(attribute:"see_also", value:"https://www.freebsd.org/security/advisories/FreeBSD-EN-19:10.scp.asc");
  # https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?b370bc74");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2019:3702");
  script_set_attribute(attribute:"see_also", value:"http://www.openwall.com/lists/oss-security/2022/08/02/1");
  script_set_attribute(attribute:"see_also", value:"https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf");
  script_set_attribute(attribute:"solution", value:
"Refer to the vendor advisory.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-6111");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_cwe_id(22);

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/01/31");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/01/31");
  script_set_attribute(attribute:"plugin_publication_date", value:"2023/03/24");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:siemens:scalance_x204rna_eec_firmware");
  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);
  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:scalance_x204rna_firmware" :
        {"versionEndExcluding" : "3.2.7", "family" : "SCALANCEX200"},
    "cpe:/o:siemens:scalance_x204rna_eec_firmware" :
        {"versionEndExcluding" : "3.2.7", "family" : "SCALANCEX200"}
};

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