VDB-123388 · CVE-2018-7792 · BID 105182

Schneider Electric Modicon M221 up to 1.6.1 Access Control access control

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.3$0-$5k0.00

Summaryinfo

A vulnerability was found in Schneider Electric Modicon M221 up to 1.6.1. It has been declared as critical. Affected by this issue is some unknown functionality of the component Access Control. Executing a manipulation can lead to access control. This vulnerability appears as CVE-2018-7792. The attack may be performed from remote. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Schneider Electric Modicon M221 up to 1.6.1 (SCADA Software). It has been declared as critical. This vulnerability affects some unknown processing of the component Access Control. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-264. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

A Permissions, Privileges, and Access Control 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 decode the password using rainbow table.

The bug was discovered 08/28/2018. The weakness was presented 08/29/2018 (Website). The advisory is shared for download at schneider-electric.com. This vulnerability was named CVE-2018-7792 since 03/07/2018. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1068.

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†). See VDB-123386 and VDB-123387 for similar entries. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.4
VulDB Meta Temp Score: 7.3

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

NVD Base Score: 7.5
NVD Vector: 🔍

ADP CISA Base Score: 7.5
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: Access control
CWE: CWE-264
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-2018-7792 (🔍)
GCVE (CVE): GCVE-0-2018-7792
GCVE (VulDB): GCVE-100-123388
SecurityFocus: 105182 - Schneider Electric Modicon M221 Multiple Security Bypass Vulnerabilities

See also: 🔍

Entryinfo

Created: 08/30/2018 08:23
Updated: 05/29/2026 21:38
Changes: 08/30/2018 08:23 (63), 03/19/2020 11:15 (4), 05/29/2026 21:38 (29)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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