Skip to main content

Security Vulnerability Discovered in Printers; Microsoft Issues Emergency Patch for Critical Windows "PrintNightmare".




Microsoft has shipped an emergency out-of-band security update to address a critical zero-day vulnerability — known as "PrintNightmare" — that affects the Windows Print Spooler service and can permit remote threat actors to run arbitrary code and take over vulnerable systems.
Tracked as CVE-2021-34527 (CVSS score: 8.8), the remote code execution flaw impacts all supported editions of Windows. Last week, the company warned it had detected active exploitation attempts targeting the vulnerability.


"The Microsoft Windows Print Spooler service fails to restrict access to functionality that allows users to add printers and related drivers, which can allow a remote authenticated attacker to execute arbitrary code with SYSTEM privileges on a vulnerable system," the CERT Coordination Center said of the issue.
It's worth noting that PrintNightmare includes both remote code execution and a local privilege escalation vector that can be abused in attacks to run commands with SYSTEM privileges on targeted Windows machines.


"The Microsoft update for CVE-2021-34527 only appears to address the Remote Code Execution (RCE via SMB and RPC) variants of the PrintNightmare, and not the Local Privilege Escalation (LPE) variant," CERT/CC vulnerability analyst Will Dormann said.
This effectively means that the incomplete fix could still be used by a local adversary to gain SYSTEM privileges. As workarounds, Microsoft recommends stopping and disabling the Print Spooler service or turning off inbound remote printing through Group Policy to block remote attacks.

Given the criticality of the flaw, the Windows maker has issued patches for:

Windows Server 2019

Windows Server 2012 R2

Windows Server 2008

Windows 8.1

Windows RT 8.1, and

Windows 10 (versions 21H1, 20H2, 2004, 1909, 1809, 1803, and 1507)

Microsoft has even taken the unusual step of issuing the fix for Windows 7, which officially reached the end of support as of January 2020.
The update, however, does not include Windows 10 version 1607, Windows Server 2012, or Windows Server 2016, for which the Redmond-based company stated patches will be released in the forthcoming days.

Interested in our Updates and News, click here to subscribe and stay tuned.


THN


#osutayusuf

Comments

Popular posts from this blog

UGANDA ELECTORAL COMMISSION TO ELIMINATE NATIONAL IDENTIFICATION CARDS (IDs) FOR 2021 GENERAL ELECTIONS.

The elimination of using National IDs (Ndagamuntu) for the 2021 elections should not have come as a surprise. One would be very NAIVE to think that Bobi Wine has not prepared for this in his Business Plan under the RISK section. It is public knowledge that our EC is not independent.  It is also public knowledge that Military Dictator Yoweri Museveni will never lose an election. What stunned us this morning is when we noticed that on social media, people were mocking Bobi with his "get your Ndagamuntu".  We are on record for saying to all Our readers that the National ID is like Apartheid in South Africa. Students of History would know how those IDs were being used to arrest people, deny them jobs, deny them basic services. Consequently, Bobi was not wrong and will never be wrong on the Ndagamuntu. Except the ones attacking him and mocking him forget that in Uganda, now, no National ID (Ndagamuntu), no service.  If you have not been denied registering your child i...

Here is Why Our Utterances For Praying Jesus And God To Come Liberate Ugandans, May Be Misplaced. This Phrase is like inform of a Letter To Some Categorized Section Of Ugandans.

https://m.facebook.com/yusufosuta/photos/a.1896701010557789/2070383359856219/?type=3 OPEN LETTER TO NRM SUPPORTERS - NATIONAL ROBBERS MOVEMENT. .................................................................................. Last week of March, a friend told me to pray for Uganda.  I told him that he was an Idiot and we have prayed for too long and we are still hungry and sick and Jesus is not coming soon to liberate us. He then ignored the STUPID and sent me a picture we all now know.  It got me totally messed up.  This guy was telling me to pray then sends a picture of men bowing down in blood.  He might have meant guns but I blocked him because his utterances of praying for Uganda were misplaced. I unblocked him 3 weeks later and asked him about praying and assassinations.  His reply "eithrr prayers or guns or both". I hate violence with a passion.  So he is now blocked in like FOREVER. Do you feel safe?  Do not feel safe. Uganda regim...

The Full List of Permanent Secretaries Appointed by President Museveni.

By virtue of the Powers given to the President by Article 174 (2) of the 1995 Constitution of the Republic of Uganda, I hereby, appoint the following as Permanent Secretaries as indicated below: 1. Head of Public Service and Secretary to Cabinet- Lucy Nakyobe 2. Deputy Head of Public Service And Secretary to Cabinet - Deborah Katuramu 3. State House Comptroller - Jane Barekye 4. Principal Private Secretary to the President- Dr. Kenneth Omona 5. Principal Private Secretary to H.E. the Vice President - Alex Kakooza 6.  Office of the Prime Minister - Keith Muhakanizi 7.  Office of the President - Yunus Kakande 8.  Ministry of Agriculture, Animal - Industry and Fisheries David Kyomukama Kasura (Maj. Gen.) 9.  Ministry of Defence and Veteran Affairs- Rosette Byengoma 10. Ministry of Education and Sports -       Kate Lamaro  11. Ministry of Energy and Mineral Development -   Batebe Irene  12. Ministry of Foreign Affairs - Vincent Bag...