VDB-192629 · CVE-2021-46154 · ssa-609880

Siemens Simcenter Femap 2020.2/2021.1 NEU File Parser stack-based overflow

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.
6.6	$5k-$25k	0.00

Summaryinfo

A vulnerability has been found in Siemens Simcenter Femap 2020.2/2021.1 and classified as critical. This affects an unknown function of the component NEU File Parser. The manipulation leads to stack-based overflow. This vulnerability is traded as CVE-2021-46154. There is no exploit available.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Siemens Simcenter Femap 2020.2/2021.1. This issue affects an unknown part of the component NEU File Parser. The manipulation with an unknown input leads to a stack-based overflow vulnerability. Using CWE to declare the problem leads to CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). Impacted is confidentiality, integrity, and availability.

The weakness was shared 02/09/2022 as ssa-609880. The advisory is shared at cert-portal.siemens.com. The identification of this vulnerability is CVE-2021-46154 since 01/07/2022. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 02/12/2022).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Vendor

Siemens

Name

Simcenter Femap

Version

License

commercial

Website

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

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.6
VulDB Meta Temp Score: 6.6

VulDB Base Score: 5.5
VulDB Temp Score: 5.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Stack-based overflow
CWE: CWE-121 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/07/2022 🔍
02/09/2022 +33 days 🔍
02/09/2022 +0 days 🔍
02/12/2022 +3 days 🔍

Sourcesinfo

Vendor: siemens.com

Advisory: ssa-609880
Status: Confirmed

CVE: CVE-2021-46154 (🔍)
GCVE (CVE): GCVE-0-2021-46154
GCVE (VulDB): GCVE-100-192629

Entryinfo

Created: 02/09/2022 21:59
Updated: 02/12/2022 23:11
Changes: 02/09/2022 21:59 (38), 02/12/2022 22:57 (1), 02/12/2022 23:11 (18)
Complete: 🔍
Cache ID: 216::103