Patents by Inventor Han Chul Bae

Han Chul Bae has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11238151
    Abstract: There is provided a method of patching a binary having vulnerability which is performed by a computing device. The method comprises loading a first binary to be patched, into a memory, generating a second binary by patching to call a stack frame initialization function from a vulnerable function of the first binary, executing the stack frame initialization function by calling the vulnerable function when the second binary is executed and initializing a stack frame area of the vulnerable function so as to automatically initialize a variable declared in the vulnerable function.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: February 1, 2022
    Assignee: KOREA INTERNET & SECURITY AGENCY
    Inventors: Hwan Kuk Kim, Tae Eun Kim, Dae Il Jang, Han Chul Bae, Jong Ki Kim, Soo Jin Yoon, Jee Soo Jurn, Geon Bae Na
  • Publication number: 20210141907
    Abstract: A method for patching a vulnerability of a binary performed on a computing device is provided.
    Type: Application
    Filed: July 21, 2020
    Publication date: May 13, 2021
    Inventors: Hwan Kuk Kim, Tae Eun Kim, Dae Il Jang, Han Chul Bae, Jong Ki Kim, Jee Soo Jurn, Geon Bae Na
  • Publication number: 20200143061
    Abstract: There is provided a method of tracking the location of the cause of a binary vulnerability, the method being performed by a computing apparatus and comprising: adding first taint information for a first operand register tainted by input data of an error-causing case, generating second taint information for a second operand register tainted by data of the first operand register by using the first taint information; and tracking input data that caused an error among the input data of the error-causing case by tracing back taint information of a register of each operand from a point where the error occurred.
    Type: Application
    Filed: July 19, 2019
    Publication date: May 7, 2020
    Applicant: KOREA INTERNET & SECURITY AGENCY
    Inventors: Hwan Kuk Kim, Tae Eun Kim, Dae Il Jang, Han Chul Bae, Jong Ki Kim, Soo Jin Yoon, Jee Soo Jurn, Geon Bae Na
  • Publication number: 20200134172
    Abstract: There is provided a method of patching a binary having vulnerability which is performed by a computing device. The method comprises loading a first binary to be patched, into a memory, generating a second binary by patching to call a stack frame initialization function from a vulnerable function of the first binary, executing the stack frame initialization function by calling the vulnerable function when the second binary is executed and initializing a stack frame area of the vulnerable function so as to automatically initialize a variable declared in the vulnerable function.
    Type: Application
    Filed: November 13, 2018
    Publication date: April 30, 2020
    Inventors: Hwan Kuk KIM, Tae Eun KIM, Dae Il JANG, Han Chul BAE, Jong Ki KIM, Soo Jin YOON, Jee Soo JURN, Geon Bae NA
  • Patent number: 9680848
    Abstract: Provided are an apparatus, a system and a method for detecting and preventing malicious scripts. The apparatus for detecting and preventing malicious scripts includes a signature management unit managing a first signature including code pattern information of previously-detected malicious scripts, a script analysis unit receiving the first signature from the signature management unit and analyzing a first script, which is included in a web page, using the first signature, and a script processing unit receiving analysis result data from the script analysis unit and processing the first script according to the analysis result data.
    Type: Grant
    Filed: January 23, 2015
    Date of Patent: June 13, 2017
    Assignee: Korea Internet & Security Agency
    Inventors: Hwan Kuk Kim, Jong Hun Jung, Han Chul Bae, Hyun Rok Choo, Woung Jang, Sang Hwan Oh, Soo Jin Yoon
  • Publication number: 20160359875
    Abstract: Provided are an apparatus, a system and a method for detecting and preventing malicious scripts. The apparatus for detecting and preventing malicious scripts includes a signature management unit managing a first signature including code pattern information of previously-detected malicious scripts, a script analysis unit receiving the first signature from the signature management unit and analyzing a first script, which is included in a web page, using the first signature, and a script processing unit receiving analysis result data from the script analysis unit and processing the first script according to the analysis result data.
    Type: Application
    Filed: January 23, 2015
    Publication date: December 8, 2016
    Applicant: KOREA INTERNET & SECURITY AGENCY
    Inventors: Hwan Kuk Kim, Jong Hun Jung, Han Chul Bae, Hyun Rok Choo, Woung Jang, Sang Hwan Oh, Soo Jin Yoon