The Vigil@nce team watches public vulnerabilities impacting your computers, and then offers security solutions, a vigilance database and tools to fix them.

Vulnerability of OpenSSH: information disclosure via Dynamic Policy Host Key

Synthesis of the vulnerability 

An attacker can bypass access restrictions to data via Dynamic Policy Host Key of OpenSSH, in order to obtain sensitive information.
Vulnerable products: NetWorker, BIG-IP Hardware, TMOS, OpenSSH, openSUSE Leap, SIMATIC, SUSE Linux Enterprise Desktop, SLES.
Severity of this weakness: 1/4.
Creation date: 30/06/2020.
Références of this bulletin: CERTFR-2020-AVI-639, CVE-2020-14145, DSA-2021-114, FSA-2020-2, K48050136, openSUSE-SU-2020:2240-1, openSUSE-SU-2020:2298-1, SSB-439005, SUSE-SU-2020:3736-1, SUSE-SU-2020:3844-1, SUSE-SU-2020:3866-1, SUSE-SU-2020:3882-1, SUSE-SU-2021:0022-1, VIGILANCE-VUL-32646.

Description of the vulnerability 

An attacker can bypass access restrictions to data via Dynamic Policy Host Key of OpenSSH, in order to obtain sensitive information.
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This threat alert impacts software or systems such as NetWorker, BIG-IP Hardware, TMOS, OpenSSH, openSUSE Leap, SIMATIC, SUSE Linux Enterprise Desktop, SLES.

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

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

A proof of concept or an attack tool is available, so your teams have to process this alert. An attacker with a technician ability can exploit this weakness note.

Solutions for this threat 

OpenSSH: workaround for Dynamic Policy Host Key.
A workaround is indicated in the information source.

Dell NetWorker vProxy: fixed versions for Sudo/OpenSSH.
Fixed versions are indicated in information sources.

F5 BIG-IP: solution for OpenSSH.
The solution is indicated in information sources.

openSUSE Leap 15.1: new openssh packages.
New packages are available:
  openSUSE Leap 15.1: openssh 7.9p1-lp151.4.18.1

openSUSE Leap 15.2: new openssh packages.
New packages are available:
  openSUSE Leap 15.2: openssh 8.1p1-lp152.4.9.1

SIMATIC S7-1500 CPU 1518: workaround for GNU/Linux Vulnerabilities.
A workaround is indicated in the information source.

SUSE LE 12 SP2-3: new openssh packages.
New packages are available:
  SUSE LE 12 SP2: openssh 7.2p2-74.57.1
  SUSE LE 12 SP3: openssh 7.2p2-74.57.1

SUSE LE 12 SP4-5: new openssh packages.
New packages are available:
  SUSE LE 12 SP4: openssh 7.2p2-78.10.1
  SUSE LE 12 SP5: openssh 7.2p2-78.10.1

SUSE LE 15 RTM: new openssh packages.
New packages are available:
  SUSE LE 15 RTM: openssh 7.6p1-9.38.1

SUSE LE 15 SP1: new openssh packages.
New packages are available:
  SUSE LE 15 SP1: openssh 7.9p1-6.22.1

SUSE LE 15 SP2: new openssh packages.
New packages are available:
  SUSE LE 15 SP2: openssh 8.1p1-5.9.1
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Computer vulnerabilities tracking service 

Vigil@nce provides a computer vulnerability note. The technology watch team tracks security threats targeting the computer system.