PT-2014-11: Information Disclosure in nginx

Vulnerable software

nginx
Version: 1.7.3 and earlier

Link:
http://nginx.org/

Severity level

Severity level: Low
Impact: Information Disclosure
Access Vector: Local

CVSS v2:
Base Score: 1.9
Vector: (AV:L/AC:M/Au:N/C:P/I:N/A:N)

CVE: not assigned

Software description

nginx [engine x] is an HTTP and reverse proxy server, as well as a mail proxy server.

Vulnerability description

The specialists of the Positive Research center have detected an Information Disclosure vulnerability in nginx.

URI normalization function does not properly handle the transmitted values, thus an attacker can disclose memory areas using a web server log.

Update your sofware up to the latest version

Advisory status

18.07.2014 - Vendor gets vulnerability details
05.08.2014 - Vendor releases fixed version and details
05.09.2014 - Public disclosure

Credits

The vulnerability was detected by Sergey Bobrov, Positive Research Center (Positive Technologies Company)

References

http://en.securitylab.ru/lab/PT-2014-11

Reports on the vulnerabilities previously discovered by Positive Research:

http://www.ptsecurity.com/research/advisory/
http://en.securitylab.ru/lab/