The vulnerability of microprogrammed software in Schneider Electric’s programmable logic controllers such as Modicon M340, Modicon Quantum, and Modicon Premium arises from buffer overflows in the stack, allowing attackers to execute arbitrary commands.

The vulnerability of microprogrammed software in Schneider Electric’s programmable logic controllers such as Modicon M340, Modicon Quantum, and Modicon Premium arises due to buffer overflow in the stack. Exploiting this vulnerability allows an attacker to execute arbitrary commands remotely by...

The vulnerability of microprogrammed software in Schneider Electric’s programmable logic controllers such as Modicon M340, Modicon Quantum, and Modicon Premium lies in errors related to register data manipulation, allowing attackers to execute arbitrary commands.

The vulnerability of microprogrammed software in Schneider Electric’s programmable logic controllers such as Modicon M340, Modicon Quantum, and Modicon Premium is related to errors in controlling registration data. Exploiting this vulnerability allows an attacker to execute arbitrary commands usi...

The vulnerability of the microprogrammed software of Schneider Electric’s Modicon M340 programmable logic controllers stems from insufficient validation of input data. This allows a intruder to trigger malfunctions during maintenance operations.

The vulnerability of the microprogramming software of Schneider Electric’s Modicon M340 programmable logic controllers is related to insufficient verification of input data. Exploiting this vulnerability can allow an attacker, operating remotely, to cause a service failure by sending a specially...

CVE-2020-7498

A CWE-798: Use of Hard-coded Credentials vulnerability exists in the Unity Loader and OS Loader Software all versions. The fixed credentials are used to simplify file transfer. Today the use of fixed credentials is considered a vulnerability, which could cause unauthorized access to the file...

Hardcoded credentials

A CWE-798: Use of Hard-coded Credentials vulnerability exists in the Unity Loader and OS Loader Software all versions. The fixed credentials are used to simplify file transfer. Today the use of fixed credentials is considered a vulnerability, which could cause unauthorized access to the file...

CVE-2020-7498

The CVE-2020-7498 entry concerns Schneider Electric Unity Loader and OS Loader Software (all versions) with a CWE-798 issue: the use of hard-coded credentials to simplify file transfers. This root cause means an attacker could potentially gain unauthorized access to the file transfer service used...

CVE-2020-7498

A CWE-798: Use of Hard-coded Credentials vulnerability exists in the Unity Loader and OS Loader Software all versions. The fixed credentials are used to simplify file transfer. Today the use of fixed credentials is considered a vulnerability, which could cause unauthorized access to the file...

Design/Logic Flaw

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...

CVE-2018-7842

A CWE-290: Authentication Bypass by Spoofing vulnerability exists in all versions of the Modicon M580, Modicon M340, Modicon Quantum, and Modicon Premium which could cause an elevation of privilege by conducting a brute force attack on Modbus parameters sent to the controller...

CVE-2018-7850

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...

Design/Logic Flaw

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...

CVE-2018-7844

CVE-2018-7844 affects Schneider Electric Modicon M580, M340, Quantum and Premium PLCs. The UMAS read memory block function can disclose plaintext data, including SNMP community strings, when reading memory blocks over Modbus. Exploitation is unauthenticated and feasible against firmware versions ...

Schneider Electric Modicon PLCs Predictable Value Range

Binary data 720116.prm...

CVE-2018-7811

An Unverified Password Change vulnerability exists in the embedded web servers in all Modicon M340, Premium, Quantum PLCs and BMXNOR0200 which could allow an unauthenticated remote user to access the change password function of the web server...

Schneider Electric Modicon Premium, Modicon Quantum, Modicon M340, and Modicon BMXNOR0200

CVSS v3 5.9 ATTENTION: Exploitable remotely/low skill level to exploit. Vendor: Schneider Electric Equipment: Modicon Premium, Modicon Quantum, Modicon M340, and Modicon BMXNOR0200 Vulnerabilities: Stack-based Buffer Overflow, Use of Hard-coded Credentials, Use of a Broken or Risky Cryptographic...

CVE-2017-6026

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...

Design/Logic Flaw

An Insufficiently Protected Credentials issue was discovered in Schneider Electric Modicon PLCs Modicon M241, all firmware versions, and Modicon M251, all firmware versions. Log-in credentials are sent over the network with Base64 encoding leaving them susceptible to sniffing. Sniffed credentials...

CVE-2017-6030

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...

Session fixation

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...

CVE-2017-6030 Schneider Electric Modicon PLCs Predictable Value Range from Previous Values

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...