full-disclosure - H9-0001 Advisory: Sphiro HTTPD remote heap overflow (Rosiello Security)

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From: 3APA3A at SECURITY.NNOV.RU (3APA3A)
Subject: H9-0001 Advisory: Sphiro HTTPD remote heap overflow (Rosiello Security)

Dear Slotto Corleone,

--Friday, April 30, 2004, 3:43:15 AM, you wrote to full-disclosure@...ts.netsys.com:

SC> - sphiro/libhttp/http_socks.c
SC>  int get_request(int type,struct sockaddr_in client,int sc,SSL *s)
SC> ...
SC>  char buffer[MAX_READ +1];
SC>  char auth_buff[MAX_READ+1];
SC>  char filename[128];
SC> ...
SC> ...

<skipped>

SC>  sprintf(filename,"%s%s",config->webroot,request);  <-- oops

According  to information you provided this is stack overflow, not heap.
And  in  this  very  case it looks not to be exploitable, because behind
filename boundaries sprintf() overwrites beginning of auth_buf. Of cause
I  may  be  wrong,  full  annalists  of  source  code  required  to make
conclusion.

-- 
~/ZARAZA
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