Siemens SIPROTEC 5 up to 8.79 Service Port 4443 buffer overflow

CVSS Meta Temp Score
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CTI Interest Score
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4.1$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in Siemens SIPROTEC 5 up to 8.79. This issue affects some unknown processing of the component Service Port 4443. Performing a manipulation results in buffer overflow. This vulnerability is identified as CVE-2021-33719. The attack can be initiated remotely. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Siemens SIPROTEC 5 up to 8.79. It has been classified as critical. This affects an unknown code of the component Service Port 4443. The manipulation with an unknown input leads to a buffer overflow vulnerability. CWE is classifying the issue as 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. This is going to have an impact on availability.

The weakness was released 09/14/2021 as ssa-847986. It is possible to read the advisory at cert-portal.siemens.com. This vulnerability is uniquely identified as CVE-2021-33719 since 05/28/2021. The technical details are unknown and an exploit is not publicly available.

Upgrading to version 8.80 eliminates this vulnerability.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

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: 🔍

Upgrade: SIPROTEC 5 8.80

Timelineinfo

05/28/2021 🔍
09/14/2021 +109 days 🔍
09/14/2021 +0 days 🔍
09/16/2021 +2 days 🔍

Sourcesinfo

Vendor: siemens.com

Advisory: ssa-847986
Status: Confirmed

CVE: CVE-2021-33719 (🔍)
GCVE (CVE): GCVE-0-2021-33719
GCVE (VulDB): GCVE-100-182571

Entryinfo

Created: 09/14/2021 15:22
Updated: 09/16/2021 18:50
Changes: 09/14/2021 15:22 (40), 09/16/2021 18:50 (1)
Complete: 🔍
Cache ID: 216::103

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