SSA-160243

Siemens Security Advisory by Siemens ProductCERT

SSA-160243: Multiple Vulnerabilities in SINEC NMS before V2.0

Publication Date:	2023-10-10
Last Update:	2024-07-09
Current Version:	V1.1
CVSS v3.1 Base Score:	7.8

SUMMARY

SINEC NMS before V2.0 is affected by a code injection and a stored cross-site scripting vulnerability.

Siemens has released an update for SINEC NMS and recommends to update to the latest version.

AFFECTED PRODUCTS AND SOLUTION

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Affected Product and Versions	Remediation
SINEC NMS All versions < V2.0 affected by all CVEs CVE-2022-30527 CVE-2023-44315	Update to V2.0 or later version https://support.industry.siemens.com/cs/ww/en/view/109824030/ See further recommendations from section Workarounds and Mitigations

WORKAROUNDS AND MITIGATIONS

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

CVE-2023-44315: Restrict access to the SNMP servers in the device network
CVE-2022-30527: Ensure that only trusted persons have access to the system and avoid the configuration of additional accounts

Product-specific remediations or mitigations can be found in the section Affected Products and Solution.
Please follow the General Security Recommendations.

GENERAL SECURITY RECOMMENDATIONS

As a general security measure, Siemens strongly recommends to protect network access to devices with appropriate mechanisms. In order to operate the devices in a protected IT environment, Siemens recommends to configure the environment according to Siemens' operational guidelines for Industrial Security (Download: https://www.siemens.com/cert/operational-guidelines-industrial-security), and to follow the recommendations in the product manuals. Additional information on Industrial Security by Siemens can be found at: https://www.siemens.com/industrialsecurity

PRODUCT DESCRIPTION

SINEC NMS is a new generation of the Network Management System (NMS) for the Digital Enterprise. This system can be used to centrally monitor, manage, and configure networks.

VULNERABILITY DESCRIPTION

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This chapter describes all vulnerabilities (CVE-IDs) addressed in this security advisory. Wherever applicable, it also documents the product-specific impact of the individual vulnerabilities.

Vulnerability CVE-2022-30527

The affected application assigns improper access rights to specific folders containing executable files and libraries.

This could allow an authenticated local attacker to inject arbitrary code and escalate privileges.

CVSS v3.1 Base Score	7.8
CVSS v3.1 Vector	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
CWE	CWE-732: Incorrect Permission Assignment for Critical Resource

Vulnerability CVE-2023-44315

The affected application improperly sanitizes certain SNMP configuration data retrieved from monitored devices. An attacker with access to a monitored device could prepare a stored cross-site scripting (XSS) attack that may lead to unintentional modification of application data by legitimate users.

CVSS v3.1 Base Score	4.7
CVSS v3.1 Vector	CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N/E:P/RL:O/RC:C
CWE	CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

ACKNOWLEDGMENTS

Siemens thanks the following party for its efforts:

Thomas Riedmaier from Siemens Energy for reporting the vulnerability CVE-2022-30527

ADDITIONAL INFORMATION

For further inquiries on security vulnerabilities in Siemens products and solutions, please contact the Siemens ProductCERT: https://www.siemens.com/cert/advisories

HISTORY DATA

V1.0 (2023-10-10):	Publication Date
V1.1 (2024-07-09):	Added acknowledgement for CVE-2022-30527

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