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Vulnerability of Asterisk: privilege escalation via AMI Originate Request

Synthesis of the vulnerability 

An attacker can bypass restrictions via AMI Originate Request of Asterisk, in order to escalate his privileges.
Vulnerable products: Asterisk Open Source, Debian.
Severity of this weakness: 2/4.
Creation date: 22/11/2019.
Références of this bulletin: AST-2019-007, CERTFR-2019-AVI-587, CVE-2019-18610, DLA-2017-1, DLA-2017-2, VIGILANCE-VUL-30936.

Description of the vulnerability 

An attacker can bypass restrictions via AMI Originate Request of Asterisk, in order to escalate his privileges.
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This vulnerability bulletin impacts software or systems such as Asterisk Open Source, Debian.

Our Vigil@nce team determined that the severity of this security note is medium.

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 cybersecurity note.

Solutions for this threat 

Asterisk: version 17.0.1.
The version 17.0.1 is fixed:
  https://www.asterisk.org/downloads

Asterisk: version 16.6.2.
The version 16.6.2 is fixed:
  https://www.asterisk.org/downloads

Asterisk: version 13.29.2.
The version 13.29.2 is fixed:
  https://www.asterisk.org/downloads

Debian 8: new asterisk packages.
New packages are available:
  Debian 8: asterisk 1:11.13.1~dfsg-2+deb8u8
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