Siemens APOGEE MBC FTP Server User stack-based overflow

CVSS Meta Temp Score
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CTI Interest Score
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7.0$0-$5k0.00

Summaryinfo

A vulnerability classified as critical 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. Affected by this vulnerability is an unknown functionality of the component FTP Server. Executing a manipulation of the argument User can lead to stack-based overflow. This vulnerability is registered as CVE-2021-31886. It is possible to launch the attack remotely. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability has been 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 and classified as critical. This vulnerability affects an unknown function of the component FTP Server. The manipulation of the argument USER with an unknown input leads to a stack-based overflow vulnerability. The CWE definition for the vulnerability is 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). As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was published 11/09/2021 as ssa-044112. The advisory is shared for download at cert-portal.siemens.com. This vulnerability was named CVE-2021-31886 since 04/29/2021. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 11/09/2021).

Upgrading eliminates this vulnerability.

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Productinfo

Vendor

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.0

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

CVSSv2info

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

Exploitinginfo

Class: Stack-based overflow
CWE: CWE-121 / 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 🔍
11/11/2021 +2 days 🔍

Sourcesinfo

Vendor: siemens.com

Advisory: ssa-044112
Status: Confirmed

CVE: CVE-2021-31886 (🔍)
GCVE (CVE): GCVE-0-2021-31886
GCVE (VulDB): GCVE-100-186340

Entryinfo

Created: 11/09/2021 14:41
Updated: 11/11/2021 15:33
Changes: 11/09/2021 14:41 (39), 11/11/2021 15:28 (1), 11/11/2021 15:33 (1)
Complete: 🔍
Cache ID: 216::103

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