Siemens LOGO! 8 BM Web Server HTTP Request buffer overflow

CVSS Meta Temp Score
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CTI Interest Score
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8.2$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in Siemens LOGO! 8 BM. Affected by this issue is some unknown functionality of the component Web Server. This manipulation as part of HTTP Request causes buffer overflow. This vulnerability is handled as CVE-2020-7593. The attack can be initiated remotely. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Siemens LOGO! 8 BM (the affected version is unknown) and classified as critical. Affected by this vulnerability is an unknown code of the component Web Server. The manipulation as part of a HTTP Request 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 summary by CVE is:

A vulnerability has been identified in LOGO! 8 BM (incl. SIPLUS variants) (V1.81.01 - V1.81.03), LOGO! 8 BM (incl. SIPLUS variants) (V1.82.01), LOGO! 8 BM (incl. SIPLUS variants) (V1.82.02). A buffer overflow vulnerability exists in the Web Server functionality of the device. A remote unauthenticated attacker could send a specially crafted HTTP request to cause a memory corruption, potentially resulting in remote code execution.

The weakness was released 07/14/2020 (Website). It is possible to read the advisory at cert-portal.siemens.com. This vulnerability is known as CVE-2020-7593 since 01/21/2020. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available.

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: 8.5
VulDB Meta Temp Score: 8.4

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

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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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

01/21/2020 🔍
07/14/2020 +175 days 🔍
07/15/2020 +1 days 🔍
07/15/2020 +0 days 🔍

Sourcesinfo

Vendor: siemens.com

Advisory: cert-portal.siemens.com
Status: Not defined

CVE: CVE-2020-7593 (🔍)
GCVE (CVE): GCVE-0-2020-7593
GCVE (VulDB): GCVE-100-158071

Entryinfo

Created: 07/15/2020 15:31
Updated: 07/15/2020 15:36
Changes: 07/15/2020 15:31 (38), 07/15/2020 15:36 (17)
Complete: 🔍
Cache ID: 216::103

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