Benjamin L Schmidt

US Patent:

20190116201, Apr 18, 2019

Filed:

Dec 5, 2018

Appl. No.:

16/211099

Inventors:

- San Francisco CA, US
Benjamin Schmidt - San Diego CA, US

Assignee:

Narf Industries, LLC - San Francisco CA

International Classification:

H04L 29/06
G06F 11/36

Abstract:

A system and method for identifying and preventing vulnerability exploitation is provided. The system comprises a processor and memory. The memory stores one or more programs comprising instructions to execute a method. The method first comprises comparing a first version of a software module with a second version of a software module. Second, the system determines one or more differences between the first version and the second version. Next, the system represents the one or more differences as symbolic constraints. Last, the system generates a firewall for identifying exploitative input using the symbolic constraints.

US Patent:

20180181498, Jun 28, 2018

Filed:

Dec 28, 2017

Appl. No.:

15/857118

Inventors:

- San Francisco CA, US
Benjamin L. Schmidt - San Diego CA, US
Maxwell J. Koo - Tampa FL, US

Assignee:

Narf Industries, LLC - San Francisco CA

International Classification:

G06F 12/14
G06F 21/78

Abstract:

A system and method is provided for secure establishment of a trusted enclave among co-privileged executable code. The system comprises one or more processors; execute only memory; and one or more programs stored in the memory. The one or more programs comprise instructions to establish a trusted enclave and an untrusted enclave in kernel space code, wherein the trusted enclave and the untrusted enclave are co-privileged from the perspective of the processor. The trusted code has the ability to modify page tables and the untrusted code does not have the ability to modify page tables. Any changes to memory mappings involve the trusted code. Page tables are mapped as read-only during execution of the untrusted code and mapped as writeable only during execution of the trusted code.

US Patent:

20170337139, Nov 23, 2017

Filed:

May 19, 2017

Appl. No.:

15/600315

Inventors:

- SAN FRANCISCO CA, US
BENJAMIN L. SCHMIDT - SAN DIEGO CA, US
MAXWELL J. KOO - TAMPA FL, US

Assignee:

NARF INDUSTRIES, LLC - SAN FRANCISCO CA

International Classification:

G06F 12/14
G11C 7/24
G06F 1/24

Abstract:

A system and method is provided for probabilistic defense against remote exploitation of memory. In certain embodiments, the system comprises one or more processors, read and execute (RX) portions of memory, read and write (RW) portions of memory, execute only (XOM) portions of memory, and one or more programs stored in the memory. The one or more programs include instructions for maintaining all pointers to RX memory instructions in XOM memory. In addition, the one or more programs include instructions for preventing all direct references to RX memory in RW memory by forcing pointers in RW memory to reference XOM memory first, which then references RX memory instructions.

US Patent:

20170019422, Jan 19, 2017

Filed:

Jul 13, 2016

Appl. No.:

15/209730

Inventors:

- San Francisco CA, US
Benjamin Schmidt - San Diego CA, US

Assignee:

Narf Industries, LLC - San Fransisco CA

International Classification:

H04L 29/06
G06F 11/36

Abstract:

A system and method for identifying and preventing vulnerability exploitation is provided. The system comprises a processor and memory. The memory stores one or more programs comprising instructions to execute a method. The method first comprises comparing a first version of a software module with a second version of a software module. Second, the system determines one or more differences between the first version and the second version. Next, the system represents the one or more differences as symbolic constraints. Last, the system generates a firewall for identifying exploitative input using the symbolic constraints.