Siemens APOGEE MBC TCP buffer overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.9$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in Siemens APOGEE MBC, APOGEE MEC, APOGEE PXC Compact, APOGEE PXC Modular, Capital VSTAR, Nucleus NET, Nucleus ReadyStart, Nucleus Source Code, TALON TC Compact and TALON TC Modular. Affected by this issue is some unknown functionality of the component TCP Handler. Executing a manipulation can lead to buffer overflow. This vulnerability is tracked as CVE-2021-31890. The attack can be launched remotely. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Siemens APOGEE MBC, APOGEE MEC, APOGEE PXC Compact, APOGEE PXC Modular, Capital VSTAR, Nucleus NET, Nucleus ReadyStart, Nucleus Source Code, TALON TC Compact and TALON TC Modular. It has been declared as critical. This vulnerability affects an unknown code block of the component TCP Handler. The manipulation with an unknown input leads to a buffer overflow vulnerability. The CWE definition for the vulnerability is CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was disclosed 11/09/2021 as ssa-044112. The advisory is shared for download at cert-portal.siemens.com. This vulnerability was named CVE-2021-31890 since 04/29/2021. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 10/08/2024).

Upgrading eliminates this vulnerability.

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Productinfo

Vendor

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License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.0
VulDB Meta Temp Score: 7.9

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.1
NVD Vector: 🔍

CNA Base Score: 7.5
CNA Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Buffer overflow
CWE: CWE-120 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

04/29/2021 🔍
11/09/2021 +194 days 🔍
11/09/2021 +0 days 🔍
10/08/2024 +1064 days 🔍

Sourcesinfo

Vendor: siemens.com

Advisory: ssa-044112
Status: Confirmed

CVE: CVE-2021-31890 (🔍)
GCVE (CVE): GCVE-0-2021-31890
GCVE (VulDB): GCVE-100-186352

Entryinfo

Created: 11/09/2021 14:52
Updated: 10/08/2024 12:40
Changes: 11/09/2021 14:52 (38), 11/11/2021 17:19 (1), 10/08/2024 12:40 (42)
Complete: 🔍
Cache ID: 216::103

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