nginx < 1.2.x / 1.3.x < 1.2.1 / 1.3.1 Vulnerabilities with Windows directory aliases

Medium Nessus Network Monitor Plugin ID 6529


The remote web server is affected by an access restriction bypass vulnerability


The remote host is running a nginx HTTP server.

Versions earlier than 1.2.1(stable version) or versions earlier than 1.3.1(development version) are vulnerable to an access restriction bypass vulnerability.
By using a request with a specially crafted directory name, such as '/directory::$index_allocation' in place of '/directory', an attacker may be able to bypass access restrictions.
Note that this vulnerability only affects installs on Windows. (CVE-2012-4963)


Upgrade to nginx 1.2.1(stable version) or 1.3.1(development version) or later.

See Also

Plugin Details

Severity: Medium

ID: 6529

Family: Web Servers

Published: 2012/08/02

Modified: 2016/01/21

Dependencies: 1442

Nessus ID: 61394

Risk Information

Risk Factor: Medium


Base Score: 5

Temporal Score: 4.1

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N

Temporal Vector: CVSS2#E:F/RL:OF/RC:C


Base Score: 5.3

Temporal Score: 4.9


Temporal Vector: CVSS3#E:F/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:igor_sysoev:nginx

Patch Publication Date: 2012/06/05

Vulnerability Publication Date: 2012/06/05

Reference Information

CVE: CVE-2011-4963

BID: 55920