VDB-123386 · CVE-2018-7790 · BID 105182

Schneider Electric Modicon M221 up to 1.6.1 information management

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.3$0-$5k0.00

Summaryinfo

A vulnerability was found in Schneider Electric Modicon M221 up to 1.6.1 and classified as critical. Affected is an unknown function. Such manipulation leads to information management. This vulnerability is documented as CVE-2018-7790. The attack can be executed remotely. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Schneider Electric Modicon M221 up to 1.6.1 (SCADA Software) and classified as critical. Affected by this issue is an unknown code. The manipulation with an unknown input leads to a information management vulnerability. Using CWE to declare the problem leads to CWE-199. Impacted is confidentiality, integrity, and availability. CVE summarizes:

An Information Management Error vulnerability exists in Schneider Electric's Modicon M221 product (all references, all versions prior to firmware V1.6.2.0). The vulnerability allows unauthorized users to replay authentication sequences. If an attacker exploits this vulnerability and connects to a Modicon M221, the attacker can upload the original program from the PLC.

The bug was discovered 08/28/2018. The weakness was released 08/29/2018 (Website). The advisory is available at schneider-electric.com. This vulnerability is handled as CVE-2018-7790 since 03/07/2018. The exploitation is known to be difficult. The attack may be launched remotely. No form of authentication is required for exploitation. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1592 by the MITRE ATT&CK project.

The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 1.6.2.0 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 105182†). Entries connected to this vulnerability are available at VDB-123387 and VDB-123388. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.4
VulDB Meta Temp Score: 8.3

VulDB Base Score: 5.6
VulDB Temp Score: 5.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

ADP CISA Base Score: 9.8
ADP CISA 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: Information management
CWE: CWE-199 / CWE-200 / CWE-284
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: Modicon M221 1.6.2.0

Timelineinfo

03/07/2018 🔍
08/28/2018 +173 days 🔍
08/28/2018 +0 days 🔍
08/29/2018 +0 days 🔍
08/29/2018 +0 days 🔍
08/30/2018 +1 days 🔍
05/29/2026 +2829 days 🔍

Sourcesinfo

Vendor: schneider-electric.com

Advisory: schneider-electric.com
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-7790 (🔍)
GCVE (CVE): GCVE-0-2018-7790
GCVE (VulDB): GCVE-100-123386
SecurityFocus: 105182 - Schneider Electric Modicon M221 Multiple Security Bypass Vulnerabilities

See also: 🔍

Entryinfo

Created: 08/30/2018 08:22
Updated: 05/29/2026 21:38
Changes: 08/30/2018 08:22 (62), 03/19/2020 11:02 (4), 05/29/2026 21:38 (32)
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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