MCS catalog creation fails when using dedicated host

Administrators may encounter the following error message when using MCS with Amazon AWS hosting connections: Transaction ID: XXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX Action Name: MCAddMachineInitialzation Exception: : Domain name\machine-name$, Failed to create the virtual machine; Domain...

PVS and MCS Devices Cache Disk Quickly Consumed By NTFSDisableLastAccessUpdate

- A Citrix Provisioned VDI, both MCS and PVS provisioned devices may consume most of its available cache disk space soon after boot, with or without any user interaction. - A machine left unattended appears to be consuming cache disk space while Procmon and Resource Monitor do not show...

libvirt: Insecure sVirt label generation

A flaw was found in libvirt while it generates SELinux MCS category pairs for VMs' dynamic labels. This flaw allows one exploited guest to access files labeled for another guest, resulting in the breaking out of sVirt confinement. The highest threat from this vulnerability is to confidentiality a...

mcs-personal.de Improper Access Control vulnerability OBB-2224785

Following the coordinated and responsible vulnerability disclosure guidelines of the ISO 29147 standard, Open Bug Bounty has: a. verified the vulnerability and confirmed its existence; b. notified the website operator about its existence. Technical details of the vulnerability are currently hidde...

UVI-2021-1001723 mac80211: limit injected vht mcs/nss in ieee80211_parse_tx_radiotap

mac80211: limit injected vht mcs/nss in ieee80211parsetxradiotap This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.14.10 by commit...

GSD-2021-1001723 mac80211: limit injected vht mcs/nss in ieee80211_parse_tx_radiotap

mac80211: limit injected vht mcs/nss in ieee80211parsetxradiotap This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.14.10 by commit...

GSD-2021-1001649 mac80211: limit injected vht mcs/nss in ieee80211_parse_tx_radiotap

mac80211: limit injected vht mcs/nss in ieee80211parsetxradiotap This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.10.71 by commit...

GSD-2021-1001596 mac80211: limit injected vht mcs/nss in ieee80211_parse_tx_radiotap

mac80211: limit injected vht mcs/nss in ieee80211parsetxradiotap This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.4.151 by commit...

GSD-2021-1001561 mac80211: limit injected vht mcs/nss in ieee80211_parse_tx_radiotap

mac80211: limit injected vht mcs/nss in ieee80211parsetxradiotap This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v4.19.209 by commit...

UVI-2021-1001561 mac80211: limit injected vht mcs/nss in ieee80211_parse_tx_radiotap

mac80211: limit injected vht mcs/nss in ieee80211parsetxradiotap This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v4.19.209 by commit...

GSD-2021-1001533 mac80211: limit injected vht mcs/nss in ieee80211_parse_tx_radiotap

mac80211: limit injected vht mcs/nss in ieee80211parsetxradiotap This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v4.14.249 by commit...

UVI-2021-1001533 mac80211: limit injected vht mcs/nss in ieee80211_parse_tx_radiotap

mac80211: limit injected vht mcs/nss in ieee80211parsetxradiotap This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v4.14.249 by commit...

GSD-2021-1001513 mac80211: limit injected vht mcs/nss in ieee80211_parse_tx_radiotap

mac80211: limit injected vht mcs/nss in ieee80211parsetxradiotap This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v4.9.285 by commit...

Unable to create MCS machine catalog due to large number of Provisioning Tasks

In rare cases, MCS machine catalog may fail to create with the following error -- Action Name: MCCreateMachineCatalogInitialzation Exception: DesktopStudioErrorId : UnknownError ErrorCategory : ResourceUnavailable DesktopStudioPowerShellHistory : Create Machine Catalog 'XXXXXXX' On analyzing the...

MCS-provisioned VDA dropped out of the domain after OS upgrade

Following an OS upgrade, MCS-provisioned VDAs leave their domain on reboot. You may also observe computer account password resets at that time...

Information Disclosure

libvirt is vulnerable to information disclosure. An attacker is able to access files of other users when the system generates SELiinux MCS category pairs for VMs' dynamic labels...

CVE-2021-3631

A flaw was found in libvirt while it generates SELinux MCS category pairs for VMs' dynamic labels. This flaw allows one exploited guest to access files labeled for another guest, resulting in the breaking out of sVirt confinement. The highest threat from this vulnerability is to confidentiality a...

Citrix Cloud CVAD - AWS Configuration Checklist and Suggestions Guide

Getting any MCS Provisioning Exceptions, make sure to get the entire details of the Exceptions to help work the case\issue...

Mail.ru: [mcs.mail.ru] Пользователь с ролью наблюдателя может создавать ключи доступа для очереди сообщений (sqs.mcs.mail.ru)

IDOR for X-Pid header allowed user with observer role to elevate privileges for SQS service of MCS sqs.mcs.mail.ru by using role from the different project. Insecure check of header parameter leaded to ability of account creation in SQS service by project observer...

Mail.ru: file read on MCS servers via supplying a QCOW2 image with external backing file

Local file read in mcs.mail.ru by providing QCOW2 disk image with backing image pointing to external file Mail.ru Cloud Solutions allows uploading custom images for disks. This functionality supported QCOW2 disk images. A QCOW2 disk image can have a so-called "backing image" - a file to read...