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    CVE-2021-29242

    CODESYS Control Runtime system before 3.5.17.0 has improper input validation. Attackers can send crafted communication packets to change the router's addressing scheme and may re-route, add, remove or change low level communication packages.

    Published:May 3, 2021
    Last Modified:Nov 21, 2024
    EPS:May 3, 2021
    EPSS Score:0.00438
    CVSS Score:7.3

    Affected Products

    Vendor
    Codesys
    Product
    Control For Beaglebone Sl
    Vendor
    Codesys
    Product
    Control For Empc-a\/imx6 Sl
    Vendor
    Codesys
    Product
    Control For Iot2000 Sl
    Vendor
    Codesys
    Product
    Control For Linux Arm Sl
    Vendor
    Codesys
    Product
    Control For Linux Sl
    Vendor
    Codesys
    Product
    Control For Pfc100 Sl
    Vendor
    Codesys
    Product
    Control For Pfc200 Sl
    Vendor
    Codesys
    Product
    Control For Plcnext Sl
    Vendor
    Codesys
    Product
    Control For Raspberry Pi Sl
    Vendor
    Codesys
    Product
    Control For Wago Touch Panels 600 Sl
    Vendor
    Codesys
    Product
    Control Rte
    Vendor
    Codesys
    Product
    Control Runtime System Toolkit
    Vendor
    Codesys
    Product
    Control Win
    Vendor
    Codesys
    Product
    Edge Gateway
    Vendor
    Codesys
    Product
    Embedded Target Visu Toolkit
    Vendor
    Codesys
    Product
    Gateway
    Vendor
    Codesys
    Product
    Hmi
    Vendor
    Codesys
    Product
    Opc Server
    Vendor
    Codesys
    Product
    Plchandler
    Vendor
    Codesys
    Product
    Remote Target Visu Toolkit
    Vendor
    Codesys
    Product
    Safety Sil
    Vendor
    Codesys
    Product
    Simulation Runtime

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-20 Improper Input Validation

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-10 Buffer Overflow via Environment Variables
    CAPEC-101 Server Side Include (SSI) Injection
    CAPEC-104 Cross Zone Scripting
    CAPEC-108 Command Line Execution through SQL Injection
    CAPEC-109 Object Relational Mapping Injection
    CAPEC-110 SQL Injection through SOAP Parameter Tampering
    CAPEC-120 Double Encoding
    CAPEC-13 Subverting Environment Variable Values
    CAPEC-135 Format String Injection
    CAPEC-136 LDAP Injection
    CAPEC-14 Client-side Injection-induced Buffer Overflow
    CAPEC-153 Input Data Manipulation
    CAPEC-182 Flash Injection
    CAPEC-209 XSS Using MIME Type Mismatch
    CAPEC-22 Exploiting Trust in Client
    CAPEC-23 File Content Injection
    CAPEC-230 Serialized Data with Nested Payloads
    CAPEC-231 Oversized Serialized Data Payloads
    CAPEC-24 Filter Failure through Buffer Overflow
    CAPEC-250 XML Injection
    CAPEC-261 Fuzzing for garnering other adjacent user/sensitive data
    CAPEC-267 Leverage Alternate Encoding
    CAPEC-28 Fuzzing
    CAPEC-3 Using Leading 'Ghost' Character Sequences to Bypass Input Filters
    CAPEC-31 Accessing/Intercepting/Modifying HTTP Cookies
    CAPEC-42 MIME Conversion
    CAPEC-43 Exploiting Multiple Input Interpretation Layers
    CAPEC-45 Buffer Overflow via Symbolic Links
    CAPEC-46 Overflow Variables and Tags
    CAPEC-47 Buffer Overflow via Parameter Expansion
    CAPEC-473 Signature Spoof
    CAPEC-52 Embedding NULL Bytes
    CAPEC-53 Postfix, Null Terminate, and Backslash
    CAPEC-588 DOM-Based XSS
    CAPEC-63 Cross-Site Scripting (XSS)
    CAPEC-64 Using Slashes and URL Encoding Combined to Bypass Validation Logic
    CAPEC-664 Server Side Request Forgery
    CAPEC-67 String Format Overflow in syslog()
    CAPEC-7 Blind SQL Injection
    CAPEC-71 Using Unicode Encoding to Bypass Validation Logic
    CAPEC-72 URL Encoding
    CAPEC-73 User-Controlled Filename
    CAPEC-78 Using Escaped Slashes in Alternate Encoding
    CAPEC-79 Using Slashes in Alternate Encoding
    CAPEC-8 Buffer Overflow in an API Call
    CAPEC-80 Using UTF-8 Encoding to Bypass Validation Logic
    CAPEC-81 Web Server Logs Tampering
    CAPEC-83 XPath Injection
    CAPEC-85 AJAX Footprinting
    CAPEC-88 OS Command Injection
    CAPEC-9 Buffer Overflow in Local Command-Line Utilities

    Related CVEs

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    CVE-2026-8046 (CVSS 7.2) — The affected products insufficiently verify authorization when deleting user accounts. An authenticated, low-p…
    CVE-2026-3509 (CVSS 7.5) — An unauthenticated remote attacker may be able to control the format string of messages processed by the Audit…
    CVE-2025-41660 (CVSS 8.8) — A low-privileged remote attacker may be able to replace the boot application of the CODESYS Control runtime sy…
    CVE-2025-41738 (CVSS 7.5) — An unauthenticated remote attacker may cause the visualisation server of the CODESYS Control runtime system to…
    CVE-2025-41739 (CVSS 5.9) — An unauthenticated remote attacker, who beats a race condition, can exploit a flaw in the communication server…
    CVE-2024-8175 (CVSS 7.5) — An unauthenticated remote attacker can causes the CODESYS web server to access invalid memory which results in…
    CVE-2023-6357 (CVSS 8.8) — A low-privileged remote attacker could exploit the vulnerability and inject additional system commands via fil…
    CVE-2022-4046 (CVSS 8.8) — In CODESYS Control in multiple versions a improper restriction of operations within the bounds of a memory buf…
    CVE-2023-37559 (CVSS 6.5) — After successful authentication as a user in multiple Codesys products in multiple versions, specific crafted …

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High