7.2
HIGH
CVE-2016-9554
Sophos Web Appliance Remote Command Injection Vulnerability
Description

The Sophos Web Appliance Remote / Secure Web Gateway server (version 4.2.1.3) is vulnerable to a Remote Command Injection vulnerability in its web administrative interface. These vulnerabilities occur in MgrDiagnosticTools.php (/controllers/MgrDiagnosticTools.php), in the component responsible for performing diagnostic tests with the UNIX wget utility. The application doesn't properly escape the information passed in the 'url' variable before calling the executeCommand class function ($this->dtObj->executeCommand). This function calls exec() with unsanitized user input allowing for remote command injection. The page that contains the vulnerabilities, /controllers/MgrDiagnosticTools.php, is accessed by a built-in command answered by the administrative interface. The command that calls to that vulnerable page (passed in the 'section' parameter) is: 'configuration'. Exploitation of this vulnerability yields shell access to the remote machine under the 'spiderman' user account.

INFO

Published Date :

Jan. 28, 2017, 12:59 p.m.

Last Modified :

March 13, 2017, 2:58 p.m.

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

1.2
Affected Products

The following products are affected by CVE-2016-9554 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Sophos web_appliance
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2016-9554.

URL Resource
http://pastebin.com/UB8Ye6ZU Exploit
http://www.securityfocus.com/bid/95858 Third Party Advisory VDB Entry
https://community.sophos.com/products/web-appliance/b/blog/posts/release-of-swa-version-4-3-1 Release Notes

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2016-9554 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2016-9554 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    Mar. 13, 2017

    Action Type Old Value New Value
    Added CVSS V2 (AV:N/AC:L/Au:S/C:C/I:C/A:C)
    Added CVSS V3 AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://community.sophos.com/products/web-appliance/b/blog/posts/release-of-swa-version-4-3-1 No Types Assigned https://community.sophos.com/products/web-appliance/b/blog/posts/release-of-swa-version-4-3-1 Release Notes
    Changed Reference Type http://www.securityfocus.com/bid/95858 No Types Assigned http://www.securityfocus.com/bid/95858 Third Party Advisory, VDB Entry
    Changed Reference Type http://pastebin.com/UB8Ye6ZU No Types Assigned http://pastebin.com/UB8Ye6ZU Exploit
    Added CWE CWE-77
    Added CPE Configuration OR *cpe:2.3:a:sophos:web_appliance:4.2.1.3:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Feb. 24, 2017

    Action Type Old Value New Value
    Added Reference http://pastebin.com/UB8Ye6ZU [No Types Assigned]
  • CVE Modified by [email protected]

    Feb. 01, 2017

    Action Type Old Value New Value
    Added Reference http://www.securityfocus.com/bid/95858 [No Types Assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2016-9554 is associated with the following CWEs:

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

3.40 }} 0.69%

score

0.91436

percentile

CVSS30 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability