CVE-2019-10167

The virConnectGetDomainCapabilities() libvirt API, versions 4.x.x before 4.10.1 and 5.x.x before 5.4.1, accepts an "emulatorbin" argument to specify the program providing emulation for a domain. Since v1.2.19, libvirt will execute that program to probe the domain's capabilities. Read-only clients could specify an arbitrary path for this argument, causing libvirtd to execute a crafted executable with its own privileges.

CVSS v3 7.8 HIGH
CVSS v2.0 4.6 MEDIUM

7.8^/10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

4.6^/10

CVSS v2.0 : MEDIUM

V2 Legend

Vector : AV:L/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 3.9 / Impact : 6.4

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://access.redhat.com/libvirt-privesc-vulnerabilities	Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-10167	Issue Tracking Vendor Advisory
https://security.gentoo.org/glsa/202003-18	Third Party Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:redhat:libvirt::::::::
	cpe:2.3:a:redhat:libvirt::::::::

Configuration 2 (hide)

OR	cpe:2.3:o:redhat:enterprise_linux:7.0:::::::*
	cpe:2.3:o:redhat:enterprise_linux:8.0:::::::*
	cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:::::::*
	cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:::::::*
	cpe:2.3:o:redhat:enterprise_linux_server:6.0:::::::*
	cpe:2.3:o:redhat:enterprise_linux_server:7.0:::::::*
	cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:::::::*
	cpe:2.3:o:redhat:enterprise_linux_server_eus:7.6:::::::*
	cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:::::::*
	cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:::::::*
	cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:::::::*
	cpe:2.3:o:redhat:virtualization:4.3:::::::*

History

No history.

Information

Published : 2019-08-02 13:15

Updated : 2020-10-15 13:28

NVD link : CVE-2019-10167

Mitre link : CVE-2019-10167

CVE.ORG link : CVE-2019-10167

JSON object : View

Products Affected

redhat

virtualization
enterprise_linux_server
enterprise_linux_server_aus
libvirt
enterprise_linux_desktop
enterprise_linux_server_eus
enterprise_linux
enterprise_linux_workstation
enterprise_linux_server_tus

CWE

CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CWE-862

Missing Authorization

CWE-250

Execution with Unnecessary Privileges

CWE-284

Improper Access Control

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Since v1.2.19, libvirt will execute that program to probe the domain's capabilities. Read-only clients could specify an arbitrary path for this argument, causing libvirtd to execute a crafted executable with its own privileges."}, {"lang": "es", "value": "La API libvirt de la funci\u00f3n virConnectGetDomainCapabilities(), versiones 4.x.x anteriores a 4.10.1 y versiones 5.x.x anteriores a 5.4.1, acepta un argumento \"emulatorbin\" para especificar el programa que proporciona emulaci\u00f3n para un dominio. Desde versi\u00f3n v1.2.19, libvirt ejecutar\u00e1 ese programa para examinar las capacidades del dominio. Los clientes de solo lectura podr\u00edan especificar una ruta de acceso arbitraria para este argumento, causando que libvirtd activara un ejecutable dise\u00f1ado con sus propios privilegios."}], "lastModified": "2020-10-15T13:28:10.487", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:redhat:libvirt:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "3EBE53E7-FA47-4A57-B702-A09AAD367D41", "versionEndExcluding": "4.10.1", "versionStartIncluding": "4.0.0"}, {"criteria": "cpe:2.3:a:redhat:libvirt:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "2004724A-67F7-45C3-8FEF-21F4DF5655B6", "versionEndExcluding": "5.4.1", "versionStartIncluding": "5.0.0"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "142AD0DD-4CF3-4D74-9442-459CE3347E3A"}, {"criteria": "cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F4CFF558-3C47-480D-A2F0-BABF26042943"}, {"criteria": "cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "EE249E1B-A1FD-4E08-AA71-A0E1F10FFE97"}, {"criteria": "cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "33C068A4-3780-4EAB-A937-6082DF847564"}, {"criteria": "cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "9BBCD86A-E6C7-4444-9D74-F861084090F0"}, {"criteria": "cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "51EF4996-72F4-4FA4-814F-F5991E7A8318"}, {"criteria": "cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B353CE99-D57C-465B-AAB0-73EF581127D1"}, {"criteria": "cpe:2.3:o:redhat:enterprise_linux_server_eus:7.6:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "BF77CDCF-B9C9-427D-B2BF-36650FB2148C"}, {"criteria": "cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B76AA310-FEC7-497F-AF04-C3EC1E76C4CC"}, {"criteria": "cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E5ED5807-55B7-47C5-97A6-03233F4FBC3A"}, {"criteria": "cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "825ECE2D-E232-46E0-A047-074B34DB1E97"}, {"criteria": "cpe:2.3:o:redhat:virtualization:4.3:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C32B0A34-5B95-4B1F-8077-5C7768FDFB33"}], "operator": "OR"}]}], "sourceIdentifier": "secalert@redhat.com"}

7.8 /10