0day.today - Biggest Exploit Database in the World.
- We use one main domain: http://0day.today
- Most of the materials is completely FREE
- If you want to purchase the exploit / get V.I.P. access or pay for any other service,
you need to buy or earn
GOLD
Administration of this site uses the official contacts. Beware of impostors!
We DO NOT use Telegram or any messengers / social networks!Please, beware of scammers!
- Read the [ agreement ]
- Read the [ Submit ] rules
- Visit the [ faq ] page
- [ Register ] profile
- Get [ GOLD ]
- If you want to [ sell ]
- If you want to [ buy ]
- If you lost [ Account ]
- Any questions [ admin@0day.today ]
- Authorisation page
- Registration page
- Restore account page
- FAQ page
- Contacts page
- Publishing rules
- Agreement page
Mail:
Facebook:
Twitter:
Telegram:
We DO NOT use Telegram or any messengers / social networks!
Contact us
You can contact us by:
Mail:
Facebook:
Twitter:
Telegram:
We DO NOT use Telegram or any messengers / social networks!
nginx Integer Overflow Vulnerability
[I. BACKGROUND --------------------- Nginx is an HTTP and reverse proxy server, as well as a mail proxy server, written by Igor Sysoev. For a long time, it has been running on many heavily loaded Russian sites including Yandex, Mail.Ru, VKontakte, and Rambler. According to Netcraft nginx served or proxied 12.96% busiest sites in April 2013. Here are some of the success stories: Netflix, Wordpress.com, FastMail.FM. II. DESCRIPTION --------------------- Qihoo 360 Web Security Research Team discovered a critical vulnerability in nginx. The vulnerability is caused by a int overflow error within the Nginx ngx_http_close_connection function when r->count is less then 0 or more then 255, which could be exploited by remote attackers to compromise a vulnerable system via malicious http requests. III. AFFECTED PRODUCTS --------------------------- Nginx all latest version IV. Exploits/PoCs --------------------------------------- In-depth technical analysis of the vulnerability and a fully functional remote code execution exploit are available through the safe3q@gmail.com In src\http\ngx_http_request_body.c ngx_http_discard_request_body function,we can make r->count++. V. VUPEN Threat Protection Program ----------------------------------- VI. SOLUTION ---------------- Validate the r->count input. VII. CREDIT -------------- This vulnerability was discovered by Safe3 of Qihoo 360. VIII. ABOUT Qihoo 360 --------------------------- Qihoo 360 is the leading provider of defensive and offensive web cloud security of China. IX. REFERENCES ---------------------- http://nginx.org/en/ # 0day.today [2024-11-14] #