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 PolicyKit: privilege escalation via Start Time Bypass

Synthesis of the vulnerability 

An attacker can bypass restrictions via Start Time Bypass of PolicyKit, in order to escalate his privileges.
Vulnerable software: Debian, Junos Space, openSUSE Leap, RHEL, SUSE Linux Enterprise Desktop, SLES, Ubuntu.
Severity of this announce: 2/4.
Creation date: 28/01/2019.
Références of this computer vulnerability: CERTFR-2019-AVI-091, CERTFR-2019-AVI-098, CERTFR-2019-AVI-115, CERTFR-2019-AVI-325, CERTFR-2020-AVI-776, CERTFR-2021-AVI-111, CERTFR-2021-AVI-120, CVE-2019-6133, DLA-1644-1, DLA-1799-1, DLA-1799-2, JSA10951, openSUSE-SU-2019:1914-1, RHSA-2019:0230-01, RHSA-2019:0420-01, RHSA-2019:0832-01, RHSA-2019:2699-01, RHSA-2019:2978-01, SUSE-SU-2019:2018-1, SUSE-SU-2019:2035-1, SUSE-SU-2020:3503-1, SUSE-SU-2021:0437-1, USN-3901-1, USN-3901-2, USN-3903-1, USN-3903-2, USN-3908-1, USN-3908-2, USN-3910-1, USN-3910-2, USN-3934-1, USN-3934-2, VIGILANCE-VUL-28381.

Description of the vulnerability 

An attacker can bypass restrictions via Start Time Bypass of PolicyKit, in order to escalate his privileges.
Full bulletin, software filtering, emails, fixes, ... (Request your free trial)

This computer vulnerability bulletin impacts software or systems such as Debian, Junos Space, openSUSE Leap, RHEL, SUSE Linux Enterprise Desktop, SLES, Ubuntu.

Our Vigil@nce team determined that the severity of this vulnerability bulletin 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 threat note.

Solutions for this threat 

Debian 8: new linux packages.
New packages are available:
  Debian 8: linux 3.16.68-1

Debian 8: new policykit-1 packages.
New packages are available:
  Debian 8: policykit-1 0.105-15~deb8u4

Junos Space: version 19.2R1.
The version 19.2R1 is fixed:
  https://www.juniper.net/support/downloads/

openSUSE Leap: new polkit packages.
New packages are available:
  openSUSE Leap 15.0: polkit 0.114-lp150.2.10.1
  openSUSE Leap 15.1: polkit 0.114-lp151.5.3.1

RHEL 6.10: new polkit packages.
New packages are available:
  RHEL 6: polkit 0.96-11.el6_10.1

RHEL 7.4: new polkit packages.
New packages are available:
  RHEL 7: polkit 0.112-12.el7_4.1

RHEL 7.5: new polkit packages.
New packages are available:
  RHEL 7: polkit 0.112-14.el7_5.1

RHEL 7.6: new polkit packages.
New packages are available:
  RHEL 7: polkit 0.112-18.el7_6.1

SUSE LE 12: new polkit packages.
New packages are available:
  SUSE LE 12 SP1: polkit 0.113-5.18.1
  SUSE LE 12 SP2: polkit 0.113-5.18.1
  SUSE LE 12 SP3: polkit 0.113-5.18.1
  SUSE LE 12 SP4: polkit 0.113-5.18.1
  SUSE LE 12 SP5: polkit 0.113-5.18.1

SUSE LE 12 SP2: new kernel packages (11/02/2021).
New packages are available:
  SUSE LE 12 SP2: kernel 4.4.121-92.149.1

SUSE LE 12 SP3: new kernel-default packages.
New packages are available:
  SUSE LE 12 SP3: kernel-default 4.4.180-94.135.1

SUSE LE 15: new polkit packages.
New packages are available:
  SUSE LE 15 RTM: polkit 0.114-3.9.1
  SUSE LE 15 SP1: polkit 0.114-3.9.1

Ubuntu: new linux-image-3.13.0 packages.
New packages are available:
  Ubuntu 14.04 LTS: linux-image-generic 3.13.0.166.177
  Ubuntu 12.04 ESM: linux-image-generic-lts-trusty 3.13.0.166.156

Ubuntu: new linux-image-4.15.0 packages.
New packages are available:
  Ubuntu 16.04 LTS: linux-image-generic-hwe-16.04 4.15.0.46.67
  Ubuntu 18.04 LTS: linux-image-generic 4.15.0.46.48

Ubuntu: new linux-image-4.18.0 packages.
New packages are available:
  Ubuntu 18.04 LTS: linux-image-generic-hwe-18.04 4.18.0.16.66
  Ubuntu 18.10: linux-image-generic 4.18.0.16.17

Ubuntu: new linux-image-4.4.0 packages.
New packages are available:
  Ubuntu 14.04 LTS: linux-image-generic-lts-xenial 4.4.0.143.125
  Ubuntu 16.04 LTS: linux-image-generic 4.4.0.143.151

Ubuntu: new policykit-1 packages.
New packages are available:
  Ubuntu 18.10: libpolkit-backend-1-0 0.105-21ubuntu0.4, policykit-1 0.105-21ubuntu0.4
  Ubuntu 18.04 LTS: libpolkit-backend-1-0 0.105-20ubuntu0.18.04.5, policykit-1 0.105-20ubuntu0.18.04.5
  Ubuntu 16.04 LTS: libpolkit-backend-1-0 0.105-14.1ubuntu0.5, policykit-1 0.105-14.1ubuntu0.5
  Ubuntu 14.04 LTS: libpolkit-backend-1-0 0.105-4ubuntu3.14.04.6, policykit-1 0.105-4ubuntu3.14.04.6
  Ubuntu 12.04 ESM: policykit-1 0.104-1ubuntu1.5
Full bulletin, software filtering, emails, fixes, ... (Request your free trial)

Computer vulnerabilities tracking service 

Vigil@nce provides a cybersecurity watch. The Vigil@nce team tracks computer vulnerabilities impacting systems and applications.