Vulnerability-Lookup

VAR-201510-0732

Vulnerability from variot - Updated: 2022-05-04 10:27

Siemens SIMATIC S7-300 CPU device Is the German Siemens ( Siemens ) A modular universal controller for discrete and continuous control of industrial environments, such as manufacturing, food and beverage and chemical industries. S7-300 PLC The program uses a structured program, which is divided into multiple modules, and each module completes the corresponding function. Combined to achieve a complex control system. Just like high-level languages, subroutines are used to implement specific functions, and then each subroutine is called through the main program, so that complex programs can be realized. OB The module is equivalent to the main program and is responsible for calling other modules. Siemens SIMATIC S7-300 CPU Is present in the device OB Module security vulnerability. A remote attacker uses the vulnerability to submit a special sequence of malformed messages and send it to the Ethernet or local serial port, which can cause the application to crash and cause a denial of service attack ( PLC There will be many different reactions, such as denial of service, or inability to download programs, etc.), you need to restart PLC To resume work.

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Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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VAR-201510-0732

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