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

Synopsis

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

Description

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)

Solution

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

See Also

http://nginx.org/en/CHANGES-1.2

http://nginx.org/en/security_advisories.html

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

CVSSv2

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

CVSSv3

Base Score: 5.3

Temporal Score: 4.9

Vector: CVSS3#AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

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