Siemens SIMATIC, SCALANCE and RUGGEDCOM Devices NULL Pointer Dereference (CVE-2024-47692)

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

include('compat.inc');

if (description)
{
  script_id(503680);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/02/12");

  script_cve_id("CVE-2024-47692");
  script_xref(name:"ICSA", value:"25-226-07");

  script_name(english:"Siemens SIMATIC, SCALANCE and RUGGEDCOM Devices NULL Pointer Dereference (CVE-2024-47692)");

  script_set_attribute(attribute:"synopsis", value:
"The remote OT asset is affected by a vulnerability.");
  script_set_attribute(attribute:"description", value:
"In the Linux kernel, the following vulnerability has been resolved:
nfsd: return -EINVAL when namelen is 0  When we have a corrupted
main.sqlite in /var/lib/nfs/nfsdcld/, it may result in namelen being
0, which will cause memdup_user() to return ZERO_SIZE_PTR.  When we
access the name.data that has been assigned the value of ZERO_SIZE_PTR
in nfs4_client_to_reclaim(), null pointer dereference is triggered.
[ T1205]
==================================================================  [
T1205] BUG: KASAN: null-ptr-deref in nfs4_client_to_reclaim+0xe9/0x260
[ T1205] Read of size 1 at addr 0000000000000010 by task nfsdcld/1205
[ T1205]  [ T1205] CPU: 11 PID: 1205 Comm: nfsdcld Not tainted
5.10.0-00003-g2c1423731b8d #406  [ T1205] Hardware name: QEMU Standard
PC (i440FX + PIIX, 1996), BIOS ?-20190727_073836-buildvm-
ppc64le-16.ppc.fedoraproject.org-3.fc31 04/01/2014  [ T1205] Call
Trace:  [ T1205]  dump_stack+0x9a/0xd0  [ T1205]  ?
nfs4_client_to_reclaim+0xe9/0x260  [ T1205]
__kasan_report.cold+0x34/0x84  [ T1205]  ?
nfs4_client_to_reclaim+0xe9/0x260  [ T1205]  kasan_report+0x3a/0x50  [
T1205]  nfs4_client_to_reclaim+0xe9/0x260  [ T1205]  ?
nfsd4_release_lockowner+0x410/0x410  [ T1205]
cld_pipe_downcall+0x5ca/0x760  [ T1205]  ?
nfsd4_cld_tracking_exit+0x1d0/0x1d0  [ T1205]  ?
down_write_killable_nested+0x170/0x170  [ T1205]  ?
avc_policy_seqno+0x28/0x40  [ T1205]  ?
selinux_file_permission+0x1b4/0x1e0  [ T1205]
rpc_pipe_write+0x84/0xb0  [ T1205]  vfs_write+0x143/0x520  [ T1205]
ksys_write+0xc9/0x170  [ T1205]  ? __ia32_sys_read+0x50/0x50  [ T1205]
? ktime_get_coarse_real_ts64+0xfe/0x110  [ T1205]  ?
ktime_get_coarse_real_ts64+0xa2/0x110  [ T1205]
do_syscall_64+0x33/0x40  [ T1205]
entry_SYSCALL_64_after_hwframe+0x67/0xd1  [ T1205] RIP:
0033:0x7fdbdb761bc7  [ T1205] Code: 0f 00 f7 d8 64 89 02 48 c7 c0 ff
ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75
10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 514  [ T1205] RSP:
002b:00007fff8c4b7248 EFLAGS: 00000246 ORIG_RAX: 0000000000000001  [
T1205] RAX: ffffffffffffffda RBX: 000000000000042b RCX:
00007fdbdb761bc7  [ T1205] RDX: 000000000000042b RSI: 00007fff8c4b75f0
RDI: 0000000000000008  [ T1205] RBP: 00007fdbdb761bb0 R08:
0000000000000000 R09: 0000000000000001  [ T1205] R10: 0000000000000000
R11: 0000000000000246 R12: 000000000000042b  [ T1205] R13:
0000000000000008 R14: 00007fff8c4b75f0 R15: 0000000000000000  [ T1205]
==================================================================

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/html/ssa-265688.html");
  script_set_attribute(attribute:"see_also", value:"https://cert-portal.siemens.com/productcert/html/ssa-355557.html");
  script_set_attribute(attribute:"see_also", value:"https://support.industry.siemens.com/cs/ww/en/view/109988839/");
  script_set_attribute(attribute:"see_also", value:"https://www.cisa.gov/news-events/ics-advisories/ICSA-25-226-07");
  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 identified the following specific workarounds and mitigations users can apply to reduce risk:

- All affected products: Update to V3.2 or later version

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

Additional information on industrial security by Siemens can be found on the Siemens industrial security webpage

For more information see the associated Siemens security advisory SSA-355557 in HTML and CSAF.");
  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_attribute(attribute:"cvss_score_source", value:"CVE-2024-47692");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_cwe_id(476);

  script_set_attribute(attribute:"vuln_publication_date", value:"2024/04/09");
  script_set_attribute(attribute:"patch_publication_date", value:"2024/04/09");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/10/27");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:siemens:ruggedcom_rst2428p_firmware:3.2");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:siemens:scalance_xc-300_series_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:siemens:scalance_xr-300_series_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:siemens:scalance_xc-400_series_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:siemens:scalance_xr-500wg_series_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:siemens:scalance_xr-500_series_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:siemens:scalance_xcm-300_series_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:siemens:scalance_xrm-300_series_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:siemens:scalance_xch-300_series_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:siemens:scalance_xrh-300_series_firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:siemens:simatic_s7-1500_tm_mfp");
  script_set_attribute(attribute:"generated_plugin", value:"former");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2025-2026 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:simatic_s7-1500_tm_mfp" :
        {"versionEndIncluding" : "1.1", "versionStartIncluding" : "1.1", "family" : "S71500", "orderNumbers": ["6ES7558-1AA00-0AB0"]},
    "cpe:/o:siemens:ruggedcom_rst2428p_firmware:3.2" :
        {"versionEndExcluding" : "3.2", "family" : "RuggedCom", "orderNumbers" : ['6GK6242-6PA00']},
    "cpe:/o:siemens:scalance_xc-300_series_firmware" :
        {"versionEndExcluding" : "3.2", "family" : "SCALANCEX300"},
    "cpe:/o:siemens:scalance_xr-300_series_firmware" :
        {"versionEndExcluding" : "3.2", "family" : "SCALANCEX300"},
    "cpe:/o:siemens:scalance_xc-400_series_firmware" :
        {"versionEndExcluding" : "3.2", "family" : "SCALANCEX400"},
    "cpe:/o:siemens:scalance_xr-500wg_series_firmware" :
        {"versionEndExcluding" : "3.2", "family" : "SCALANCEX500"},
    "cpe:/o:siemens:scalance_xr-500_series_firmware" :
        {"versionEndExcluding" : "3.2", "family" : "SCALANCEX500"},
    "cpe:/o:siemens:scalance_xcm-300_series_firmware" :
        {"versionEndExcluding" : "3.2", "family" : "SCALANCEX300"},
    "cpe:/o:siemens:scalance_xrm-300_series_firmware" :
        {"versionEndExcluding" : "3.2", "family" : "SCALANCEX300"},
    "cpe:/o:siemens:scalance_xch-300_series_firmware" :
        {"versionEndExcluding" : "3.2", "family" : "SCALANCEX300"},
    "cpe:/o:siemens:scalance_xrh-300_series_firmware" :
        {"versionEndExcluding" : "3.2", "family" : "SCALANCEX300"}
};

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