CVE-2023-34058

open-vm-tools: SAML token signature bypass

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

VMware Tools contains a SAML token signature bypass vulnerability. A malicious actor that has been granted Guest Operation Privileges https://docs.vmware.com/en/VMware-vSphere/8.0/vsphere-security/GUID-6A952214-0E5E-4CCF-9D2A-90948FF643EC.html in a target virtual machine may be able to elevate their privileges if that target virtual machine has been assigned a more privileged Guest Alias https://vdc-download.vmware.com/vmwb-repository/dcr-public/d1902b0e-d479-46bf-8ac9-cee0e31e8ec0/07ce8dbd-db48-4261-9b8f-c6d3ad8ba472/vim.vm.guest.AliasManager.html .

VMware Tools contiene una vulnerabilidad de omisión de firma de token SAML. Un actor malicioso al que se le han otorgado privilegios de operación de invitado https://docs.vmware.com/en/VMware-vSphere/8.0/vsphere-security/GUID-6A952214-0E5E-4CCF-9D2A-90948FF643EC.html en una máquina virtual de destino es posible que pueda elevar sus privilegios si a esa máquina virtual de destino se le ha asignado un Alias de Invitado más privilegiado https://vdc-download.vmware.com/vmwb-repository/dcr-public/d1902b0e-d479-46bf-8ac9-cee0e31e8ec0/07ce8dbd-db48-4261-9b8f-c6d3ad8ba472/vim.vm.guest.AliasManager.html.

A flaw was found in open-vm-tools. This flaw allows a malicious actor that has been granted Guest Operation Privileges in a target virtual machine to elevate their privileges if that target virtual machine has been assigned a more privileged Guest Alias.

*Credits: N/A

Attack Vector

Adjacent

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Adjacent

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2023-05-25 CVE Reserved
2023-10-27 CVE Published
2024-02-01 EPSS Updated
2024-08-02 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-347: Improper Verification of Cryptographic Signature
CWE-1220: Insufficient Granularity of Access Control

CAPEC

References (9)

URL	Tag	Source
https://lists.debian.org/debian-lts-announce/2023/11/msg00002.html	Mailing List
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/G7G77Z76CQPGUF7VHRA6O3UFCMPPR4O2	Mailing List
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MQUOFQL2SNNNMKROQ3TZQY4HEYMNOIBW	Mailing List
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WLTKVTRKQW2GD2274H3UOW6XU4E62GSK	Mailing List
https://www.debian.org/security/2023/dsa-5543	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
http://www.openwall.com/lists/oss-security/2023/10/27/1	2024-02-01

URL	Date	SRC
https://www.vmware.com/security/advisories/VMSA-2023-0024.html	2024-02-01
https://access.redhat.com/security/cve/CVE-2023-34058	2023-11-15
https://bugzilla.redhat.com/show_bug.cgi?id=2246080	2023-11-15

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Vmware Search vendor "Vmware"	Tools Search vendor "Vmware" for product "Tools"	>= 10.3.0 < 12.3.5 Search vendor "Vmware" for product "Tools" and version " >= 10.3.0 < 12.3.5"	-	Affected	in	Microsoft Search vendor "Microsoft"	Windows Search vendor "Microsoft" for product "Windows"	-	-	Safe
Vmware Search vendor "Vmware"		Open Vm Tools Search vendor "Vmware" for product "Open Vm Tools"				>= 11.0.0 <= 12.3.0 Search vendor "Vmware" for product "Open Vm Tools" and version " >= 11.0.0 <= 12.3.0"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				10.0 Search vendor "Debian" for product "Debian Linux" and version "10.0"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				11.0 Search vendor "Debian" for product "Debian Linux" and version "11.0"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				12.0 Search vendor "Debian" for product "Debian Linux" and version "12.0"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				37 Search vendor "Fedoraproject" for product "Fedora" and version "37"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				38 Search vendor "Fedoraproject" for product "Fedora" and version "38"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				39 Search vendor "Fedoraproject" for product "Fedora" and version "39"		-		Affected