Siemens SIPROTEC 5 prior 8.80 Service Port 4443 buffer overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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3.4$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in Siemens SIPROTEC 5. This affects an unknown function of the component Service Port 4443. The manipulation results in buffer overflow. This vulnerability is identified as CVE-2021-33720. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Siemens SIPROTEC 5. Affected is an unknown code block 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. The advisory is available at cert-portal.siemens.com. This vulnerability is traded as CVE-2021-33720 since 05/28/2021. The technical details are unknown and an exploit is not available.

Upgrading to version 8.80 eliminates this vulnerability.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.5
VulDB Meta Temp Score: 3.4

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
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: Partially

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 🔍
09/17/2021 +3 days 🔍

Sourcesinfo

Vendor: siemens.com

Advisory: ssa-847986
Status: Confirmed

CVE: CVE-2021-33720 (🔍)
GCVE (CVE): GCVE-0-2021-33720
GCVE (VulDB): GCVE-100-182586

Entryinfo

Created: 09/14/2021 15:51
Updated: 09/17/2021 07:14
Changes: 09/14/2021 15:51 (39), 09/17/2021 07:14 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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