PT-2019-6021

Name of the Vulnerable Software and Affected Versions Modicon Controllers versions affected versions not specified Description A vulnerability exists in Modicon Controllers, which could cause the disclosure of FTP hardcoded credentials when using the Web server of the controller on an unsecure...

Schneider-electric Modicon Missing Authentication for Critical Function

A CWE-306: Missing Authentication for Critical Function vulnerability exists which could cause a modification of device IP configuration IP address, network mask and gateway IP address when a specific Ethernet frame is received in all versions of: Modicon M100, Modicon M200, Modicon M221, ATV IMC...

Schneider-electric Modicon Improper Handling of Exceptional Conditions

A CWE-248: Uncaught Exception vulnerability exists in Modicon M580 firmware version prior to V2.90 and Modicon M340 firmware version prior to V3.10, which could cause a possible denial of service when writing to specific memory addresses in the controller over Modbus. File data ot500297.nasl...

Schneider-electric Modicon Insufficient Entropy

A Predictable Value Range from Previous Values issue was discovered in Schneider Electric Modicon PLCs Modicon M221, firmware versions prior to Version 1.5.0.0, Modicon M241, firmware versions prior to Version 4.0.5.11, and Modicon M251, firmware versions prior to Version 4.0.5.11. The affected...

Schneider-electric Modicon Improper Restriction of Operations within the Bounds of a Memory Buffer

DISPUTED The Schneider Electric M340 PLC modules allow remote attackers to cause a denial of service resource consumption via unspecified vectors. NOTE: the vendor reportedly disputes this issue because it "could not be duplicated" and "an attacker could not remotely exploit this observed behavio...

Schneider-electric Modicon Improper Check for Unusual or Exceptional Conditions

A CWE-248 Uncaught Exception vulnerability exists in all versions of the Modicon M580, Modicon M340, Modicon Quantum, and Modicon Premium which could cause a denial of Service when sending invalid debug parameters to the controller over Modbus. File data ot500243.nasl...

Schneider-electric Modicon Improper Check for Unusual or Exceptional Conditions

An Improper Check for Unusual or Exceptional Conditions 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 remotely reboot Modicon M221 using crafted programing protocol frames...

Schneider-electric Modicon Use of Insufficiently Random Values

A Use of Insufficiently Random Values issue was discovered in Schneider Electric Modicon PLCs Modicon M241, firmware versions prior to Version 4.0.5.11, and Modicon M251, firmware versions prior to Version 4.0.5.11. The session numbers generated by the web application are lacking randomization an...

Schneider-electric Modicon Improper Check for Unusual or Exceptional Conditions

A CWE-248: Uncaught Exception vulnerability exists in all versions of the Modicon M580, Modicon M340, Modicon Quantum, and Modicon Premium which could cause a possible Denial of Service when writing out of bounds variables to the controller over Modbus. File data ot500099.nasl...

Schneider-electric Modicon Unspecified Vulnerability

A CWE-248: Uncaught Exception vulnerability exists in all versions of the Modicon M580, Modicon M340, Modicon Quantum, and Modicon Premium which could cause denial of service when reading memory blocks with an invalid data size or with an invalid data offset in the controller over Modbus. File da...

Schneider-electric Modicon Cleartext Transmission of Sensitive Information

A CWE-319: Cleartext Transmission of Sensitive Information vulnerability exists in Modicon M580, Modicon M340, Modicon Premium , Modicon Quantum all firmware versions, which could cause the disclosure of information when transferring applications to the controller using Modbus TCP protocol. File...

Schneider-electric Modicon Improper Handling of Exceptional Conditions

A CWE-248: Uncaught Exception vulnerability exists in Modicon M580, Modicon M340, Modicon BMxCRA and 140CRA modules all firmware versions, which could cause a Denial of Service atack on the PLC when upgrading the controller with a firmware package containing an invalid web server image using FTP...

Schneider-electric Modicon Out-of-bounds Read

A CWE-125: Out-of-bounds Read vulnerability exists in all versions of the Modicon M580, Modicon M340, Modicon Quantum, and Modicon Premium which could cause the disclosure of unexpected data from the controller when reading specific memory blocks in the controller over Modbus. File data...

Schneider-electric Modicon Exposure of Sensitive Information to an Unauthorized Actor

A CWE-200: Information Exposure vulnerability exists in all versions of the Modicon M580, Modicon M340, Modicon Quantum, and Modicon Premium which could cause the disclosure of SNMP information when reading files from the controller over Modbus File data ot500301.nasl...

Schneider-electric Modicon Improper Input Validation

A CWE-807: Reliance on Untrusted Inputs in a Security Decision vulnerability exists in all versions of the Modicon M580, Modicon M340, Modicon Quantum, and Modicon Premium which could cause invalid information displayed in Unity Pro software. File data ot500234.nasl...

Schneider-electric Modicon Improper Control of Generation of Code ('Code Injection')

In Modicon Quantum all firmware versions, a CWE-94: Code Injection vulnerability could cause an unauthorized firmware modification with possible Denial of Service when using Modbus protocol. File data ot500209.nasl...

Schneider-electric Modicon Improper Input Validation

A CWE-248: Uncaught Exception vulnerability exists in all versions of the Modicon M580, Modicon M340, Modicon Quantum, and Modicon Premium which could cause denial of service when an invalid private command parameter is sent to the controller over Modbus. File data ot500324.nasl...

Schneider-electric Modicon Improper Restriction of Operations within the Bounds of a Memory Buffer

Multiple buffer overflows in Schneider Electric Modicon Quantum PLC allow remote attackers to cause a denial of service via malformed requests to the 1 FTP server or 2 HTTP server. File data ot500027.nasl...

Schneider-electric Modicon Improper Restriction of Operations within the Bounds of a Memory Buffer

A CWE-501: Trust Boundary Violation vulnerability on connection to the Controller exists in all versions of the Modicon M580, Modicon M340, Modicon Quantum and Modicon Premium which could cause unauthorized access by conducting a brute force attack on Modbus protocol to the controller. File data...

Schneider-electric Modicon Improper Check for Unusual or Exceptional Conditions

An Improper Check for Unusual or Exceptional Conditions CWE-754 vulnerability exists in Modicon Quantum 140 NOE771x1 version 6.9 and earlier, which could cause denial of service when the module receives an IP fragmented packet with a length greater than 65535 bytes. The module then requires a pow...