ID:4956 - Exploit for Stack-based buffer overflow in nginx - CVE-2013-2028

Link to public exploit:

Vulnerability description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error within the ngx_http_parse_chunked function in http/ngx_http_parse.c when processing a chunked Transfer-Encoding request with a large chunk size, which triggers an integer signedness error and a stack-based buffer overflow. A remote unauthenticated attacker can trigger stack-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Remediation