ESB-2018.3940 - [Win][UNIX/Linux] Drupal E-Sign: Cross-site scripting - Existing account 2018-12-21

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2018.3940
 E-Sign - Moderately critical - Cross site scripting - SA-CONTRIB-2018-080
                             21 December 2018

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           Drupal E-Sign
Publisher:         Drupal
Operating System:  Windows
                   UNIX variants (UNIX, Linux, OSX)
Impact/Access:     Cross-site Scripting -- Existing Account
Resolution:        Patch/Upgrade

Original Bulletin: 
   https://www.drupal.org/sa-contrib-2018-080

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E-Sign - Moderately critical - Cross site scripting - SA-CONTRIB-2018-080

Project: E-Sign
Version: 7.x-1.9
Date: 2018-December-19
Security risk: Moderately critical 14/25 AC:
Basic/A:User/CI:Some/II:Some/E:Theoretical/TD:All
Vulnerability: Cross site scripting
Description:

This module allows for integration of Signature Pad, an electronic-signing
script, into Drupal for both nodes (content), the Field API (FAPI), and
Webforms.

The module doesn't sufficiently filter user input when displaying a signature.

The vulnerability is mitigated by the fact that an attacker must have the
ability to submit a signature. That permission might be associated with
submitting a webform or creating or editing a node depending on site
configuration.
Solution:

Install the latest version:

    If you use the Esign module for Drupal 7.x, upgrade to Esign 7.x-1.10

Also see the E-Sign project page.
Reported By:

    Mitch Portier

Fixed By:

    Adam Weiss
    Mitch Portier

Coordinated By:

    Greg Knaddison of the Drupal Security Team

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