VDB-184205 · CVE-2021-33728 · ssa-163251

Siemens SINEC NMS up to 1.0 SP2 Java Object deserialization

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.6	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Siemens SINEC NMS up to 1.0 SP2. It has been rated as critical. Affected is an unknown function of the component Java Object Handler. The manipulation leads to deserialization. This vulnerability is referenced as CVE-2021-33728. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Siemens SINEC NMS up to 1.0 SP2. This issue affects an unknown function of the component Java Object Handler. The manipulation with an unknown input leads to a deserialization vulnerability. Using CWE to declare the problem leads to CWE-502. The product deserializes untrusted data without sufficiently verifying that the resulting data will be valid. Impacted is confidentiality, integrity, and availability.

The weakness was published 10/12/2021 as ssa-163251. The advisory is shared at cert-portal.siemens.com. The identification of this vulnerability is CVE-2021-33728 since 05/28/2021. Neither technical details nor an exploit are publicly available.

Upgrading to version 1.0 SP2 Update 1 eliminates this vulnerability.

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Productinfo

Vendor

Siemens

Name

SINEC NMS

Version

1.0 SP2

License

commercial

Website

Vendor: https://www.siemens.com/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.0
VulDB Meta Temp Score: 7.6

VulDB Base Score: 8.0
VulDB Temp Score: 7.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
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Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Deserialization
CWE: CWE-502 / CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: SINEC NMS 1.0 SP2 Update 1

Timelineinfo

05/28/2021 🔍
10/12/2021 +137 days 🔍
10/12/2021 +0 days 🔍
10/14/2021 +2 days 🔍

Sourcesinfo

Vendor: siemens.com

Advisory: ssa-163251
Status: Confirmed

CVE: CVE-2021-33728 (🔍)
GCVE (CVE): GCVE-0-2021-33728
GCVE (VulDB): GCVE-100-184205

Entryinfo

Created: 10/12/2021 14:38
Updated: 10/14/2021 19:19
Changes: 10/12/2021 14:38 (40), 10/14/2021 19:19 (1)
Complete: 🔍
Cache ID: 216::103