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Vulnerability of OTRS Help Desk: information disclosure via External Notes

Synthesis of the vulnerability

An attacker can bypass access restrictions to data via External Notes of OTRS Help Desk, in order to obtain sensitive information.
Severity of this computer vulnerability: 2/4.
Creation date: 03/06/2019.
Références of this announce: CVE-2019-12497, DLA-1816-1, OSA-2019-09, VIGILANCE-VUL-29446.

Description of the vulnerability

An attacker can bypass access restrictions to data via External Notes of OTRS Help Desk, in order to obtain sensitive information.
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This threat announce impacts software or systems such as Debian, OTRS Help Desk.

Our Vigil@nce team determined that the severity of this cybersecurity alert is medium.

The trust level is of type confirmed by the editor, with an origin of intranet client.

An attacker with a expert ability can exploit this security alert.

Solutions for this threat

OTRS Help Desk: version 7.0.8.
The version 7.0.8 is fixed:
  https://community.otrs.com/download-otrs-community-edition/

OTRS Help Desk: version 6.0.19.
The version 6.0.19 is fixed:
  https://community.otrs.com/download-otrs-community-edition/

OTRS Help Desk: version 5.0.36.
The version 5.0.36 is fixed:
  https://community.otrs.com/download-otrs-community-edition/

Debian 8: new otrs2 packages.
New packages are available:
  Debian 8: otrs2 3.3.18-1+deb8u10
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