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Vulnerability of OTRS Help Desk: information disclosure via Ticket List

Synthesis of the vulnerability 

An attacker can bypass access restrictions to data via Ticket List of OTRS Help Desk, in order to obtain sensitive information.
Vulnerable systems: Debian, openSUSE Leap, OTRS Help Desk, SLES.
Severity of this threat: 1/4.
Creation date: 15/11/2019.
Références of this weakness: CVE-2019-18179, DLA-2053-1, openSUSE-SU-2020:0551-1, OSA-2019-14, VIGILANCE-VUL-30884.

Description of the vulnerability 

An attacker can bypass access restrictions to data via Ticket List of OTRS Help Desk, in order to obtain sensitive information.
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This cybersecurity weakness impacts software or systems such as Debian, openSUSE Leap, OTRS Help Desk, SLES.

Our Vigil@nce team determined that the severity of this security vulnerability is low.

The trust level is of type confirmed by the editor, with an origin of user account.

An attacker with a expert ability can exploit this vulnerability bulletin.

Solutions for this threat 

OTRS Help Desk: version 7.0.13.
The version 7.0.13 is fixed:
  https://www.otrs.com/category/release-and-security-notes-en/

OTRS Help Desk: version 6.0.24.
The version 6.0.24 is fixed:
  https://www.otrs.com/category/release-and-security-notes-en/

OTRS Help Desk: version 5.0.39.
The version 5.0.39 is fixed:
  https://www.otrs.com/category/release-and-security-notes-en/

Debian 8: new otrs2 packages.
New packages are available:
  Debian 8: otrs2 3.3.18-1+deb8u12

openSUSE Leap 15.1: new otrs packages.
New packages are available:
  openSUSE Leap 15.1: otrs 5.0.42-lp151.2.3.1

SUSE LE 15: new otrs packages.
New packages are available:
  SUSE LE 15 SP1: otrs 5.0.42-bp151.3.3.1
  SUSE LE 15 RTM: otrs 5.0.42-bp150.2.10.1
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