Detections
Analytics
Siemens SIMATIC and SCALANCE Devices Out-of-bounds Write (CVE-2023-45863)
medium Tenable OT Security Plugin ID 502893
Synopsis
The remote OT asset is affected by a vulnerability.Description
An issue was discovered in lib/kobject.c in the Linux kernel before 6.2.3. With root access, an attacker can trigger a race condition that results in a fill_kobj_path out-of-bounds write.This plugin only works with Tenable.ot.
Please visit https://www.tenable.com/products/tenable-ot for more information.
Solution
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 V3.1 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.
For more information, see the associated Siemens security advisory in HTML and CSAF.
See Also
https://cert-portal.siemens.com/productcert/pdf/ssa-831302.pdf
https://cert-portal.siemens.com/productcert/pdf/ssa-794697.pdf
https://cert-portal.siemens.com/productcert/html/ssa-769027.html
https://support.industry.siemens.com/cs/ww/en/view/109977720/
https://support.industry.siemens.com/cs/ww/en/view/109827684/
https://support.industry.siemens.com/cs/ww/en/view/109945851/
https://www.cisa.gov/news-events/ics-advisories/icsa-25-044-09
https://www.cisa.gov/news-events/ics-advisories/icsa-25-226-15
Plugin Details
Severity: Medium
ID: 502893
File Name: tenable_ot_siemens_CVE-2023-45863.nasl
Version: 1.6
Type: remote
Family: Tenable.ot
Published: 2/24/2025
Updated: 2/27/2026
Supported Sensors: Tenable OT Security
Risk Information
VPR
Risk Factor: Medium
Score: 5.9
CVSS v2
Risk Factor: Medium
Base Score: 5.9
Temporal Score: 4.4
Vector: CVSS2#AV:L/AC:H/Au:M/C:C/I:C/A:C
CVSS Score Source: CVE-2023-45863
CVSS v3
Risk Factor: Medium
Base Score: 6.4
Temporal Score: 5.8
Vector: CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C
Vulnerability Information
CPE: cpe:/o:siemens:scalance_wam763-1_firmware:3.0.0, cpe:/o:siemens:scalance_wam766-1_%28us%29_firmware:3.0.0, cpe:/o:siemens:scalance_wam763-1_%28us%29_firmware:3.0.0, cpe:/o:siemens:scalance_wub762-1_ifeatures_firmware:3.0.0, cpe:/o:siemens:scalance_wam766-1_%28me%29_firmware:3.0.0, cpe:/o:siemens:scalance_wum763-1_firmware:3.0.0, cpe:/o:siemens:scalance_wam766-1_eec_%28us%29_firmware:3.0.0, cpe:/o:siemens:scalance_wum766-1_firmware:3.0.0, cpe:/o:siemens:scalance_wam766-1_firmware:3.0.0, cpe:/o:siemens:scalance_wam766-1_eec_%28me%29_firmware:3.0.0, cpe:/o:siemens:scalance_wab762-1_firmware:3.0.0, cpe:/o:siemens:scalance_wam766-1_eec_firmware:3.0.0, cpe:/o:siemens:scalance_wam763-1_%28me%29_firmware:3.0.0, cpe:/o:siemens:scalance_wub762-1_firmware:3.0.0, cpe:/o:siemens:simatic_s7-1500_tm_mfp, cpe:/o:siemens:scalance_wum766-1_%28me%29_firmware:3.0.0, cpe:/o:siemens:scalance_wum766-1_%28usa%29_firmware:3.0.0, cpe:/o:siemens:scalance_wum763-1_%28us%29_firmware:3.0.0
Required KB Items: Tenable.ot/Siemens
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 6/13/2023
Vulnerability Publication Date: 6/13/2023
Reference Information
CVE: CVE-2023-45863
CWE: 787
ICSA: 25-044-09, 25-226-15