Vulnerabilities > CVE-2016-3162 - Improper Access Control vulnerability in multiple products

047910
CVSS 6.5 - MEDIUM
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
SINGLE
Confidentiality impact
PARTIAL
Integrity impact
PARTIAL
Availability impact
PARTIAL
network
low complexity
drupal
debian
CWE-284
nessus

Summary

The File module in Drupal 7.x before 7.43 and 8.x before 8.0.4 allows remote authenticated users to bypass access restrictions and read, delete, or substitute a link to a file uploaded to an unprocessed form by leveraging permission to create content or comment and upload files.

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Embedding Scripts within Scripts
    An attack of this type exploits a programs' vulnerabilities that are brought on by allowing remote hosts to execute scripts. The attacker leverages this capability to execute scripts to execute his/her own script by embedding it within other scripts that the target software is likely to execute. The attacker must have the ability to inject script into script that is likely to be executed. If this is done, then the attacker can potentially launch a variety of probes and attacks against the web server's local environment, in many cases the so-called DMZ, back end resources the web server can communicate with, and other hosts. With the proliferation of intermediaries, such as Web App Firewalls, network devices, and even printers having JVMs and Web servers, there are many locales where an attacker can inject malicious scripts. Since this attack pattern defines scripts within scripts, there are likely privileges to execute said attack on the host. Of course, these attacks are not solely limited to the server side, client side scripts like Ajax and client side JavaScript can contain malicious scripts as well. In general all that is required is for there to be sufficient privileges to execute a script, but not protected against writing.
  • Signature Spoofing by Key Theft
    An attacker obtains an authoritative or reputable signer's private signature key by theft and then uses this key to forge signatures from the original signer to mislead a victim into performing actions that benefit the attacker.

Nessus

  • NASL familyCGI abuses
    NASL idDRUPAL_7_43.NASL
    descriptionThe version of Drupal running on the remote web server is 7.x prior to 7.43. It is, therefore, affected by the following vulnerabilities : - A flaw exists in the File module that allows an attacker to view, delete, or substitute a link to a file that has not yet been submitted or processed by a form. An authenticated, remote attacker can exploit this, via continuous deletion of temporary files, to block all file uploads to a site. - A flaw exists in the XML-RPC system due to a failure to limit the number of simultaneous calls being made to the same method. A remote attacker can exploit this to facilitate brute-force attacks. - A cross-site redirection vulnerability exists due to improper validation of unspecified input before returning it to the user, which can allow the current path to be filled-in with an external URL. A remote attacker can exploit this, via a crafted link, to redirect a user to a malicious web page of the attacker
    last seen2020-03-21
    modified2016-03-04
    plugin id89683
    published2016-03-04
    reporterThis script is Copyright (C) 2016-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/89683
    titleDrupal 7.x < 7.43 Multiple Vulnerabilities
  • NASL familyDebian Local Security Checks
    NASL idDEBIAN_DSA-3498.NASL
    descriptionMultiple security vulnerabilities have been found in the Drupal content management framework. For additional information, please refer to the upstream advisory at
    last seen2020-06-01
    modified2020-06-02
    plugin id89004
    published2016-02-29
    reporterThis script is Copyright (C) 2016-2018 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/89004
    titleDebian DSA-3498-1 : drupal7 - security update