Vulnerability Name:

CVE-2020-27187 (CCN-190537)

Assigned:2020-10-17
Published:2020-10-17
Updated:2022-04-28
Summary:An issue was discovered in KDE Partition Manager 4.1.0 before 4.2.0. The kpmcore_externalcommand helper contains a logic flaw in which the service invoking D-Bus is not properly checked. An attacker on the local machine can replace /etc/fstab, and execute mount and other partitioning related commands, while KDE Partition Manager is running. the mount command can then be used to gain full root privileges.
CVSS v3 Severity:7.8 High (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
6.8 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
7.8 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
6.8 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
CVSS v2 Severity:7.2 High (CVSS v2 Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
6.8 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:S/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
Vulnerability Type:CWE-noinfo
Vulnerability Consequences:Gain Privileges
References:Source: MITRE
Type: CNA
CVE-2020-27187

Source: MISC
Type: Issue Tracking, Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1890199

Source: XF
Type: UNKNOWN
kde-cve202027187-priv-esc(190537)

Source: MISC
Type: Release Notes, Third Party Advisory
https://github.com/KDE/partitionmanager/compare/v4.1.0...v4.2.0

Source: CCN
Type: KDE Project Security Advisory
KDE Partition Manager: kpmcore_externalcommand helper can be exploited in local privilege escalation

Source: CONFIRM
Type: Patch, Vendor Advisory
https://kde.org/info/security/advisory-20201017-1.txt

Source: GENTOO
Type: Third Party Advisory
GLSA-202011-03

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2020-27187

Vulnerable Configuration:Configuration 1:
  • cpe:/a:kde:partition_manager:*:*:*:*:*:*:*:* (Version >= 4.1.0 and < 4.2.0)

    • Configuration CCN 1:
  • cpe:/a:kde:partition_manager:4.1.0:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    kde partition manager *
    kde partition manager 4.1.0