Cyber Security News

CISA Asks Federal Agencies to Fix Win32k Privilege Escalation Flaw as Threat Actors Actively Exploiting

The Cybersecurity and Infrastructure Security Agency (CISA) has recently commanded the Federal Agencies to immediately fix the Win32k privilege escalation flaw, as the threat actors are actively exploiting this security flaw.

For the threat actors, bugs like this are one of the most common lucrative attack vectors that cause major risk factors to all the Federal Civilian Executive Branch Agencies (FCEB).

The vulnerability has been tracked as CVE-2022-21882, and this is a Win32k Elevation of Privilege vulnerability that is actively exploited by the threat actors to target the Federal Civilian Executive Branch Agencies (FCEB) agencies.

Here’s what the cybersecurity agency stated:-

“CISA has added one new vulnerability to its Known Exploited Vulnerabilities Catalog, based on evidence that threat actors are actively exploiting the vulnerabilities listed in the table below.”

Flaw Profile

  • CVEID: CVE-2022-21882
  • Description: Win32k Elevation of Privilege Vulnerability.
  • CWE ID: CWE-269
  • CWE Name: Improper Privilege Management
  • NVD Base Score: 7.8
  • Microsoft Corporation Base Score: 7.0
  • Severity: HIGH

While apart from this, the CISA (Cybersecurity and Infrastructure Security Agency) has also published the Required Action Due Date for FCEB networks:-

  • 18th February 2022 (18/02/2022)

Within this above-mentioned time frame, CISA has strongly recommended all the FCEB networks to patch their systems against this vulnerability that is under the active exploitation of threat actors.

Exploitation

The threat actors can use the newly obtained user rights that are obtained by exploiting the Win32k local privilege elevation vulnerability to perform the following key actions:-

  • Spread laterally within the network.
  • Create new admin users.
  • Execute privileged commands.

Moreover, due to critical bugs, several administrators have ignored the January 2022 updates, and here are the bugs found in the January 2022 updates:-

  • Unusual Reboots.
  • L2TP VPN problems.
  • Inaccessible ReFS volumes issues.
  • Hyper-V issues.

However, all the above-mentioned issues are fixed in the emergency out-of-band (OOB) updates that were already published on 17th January 2022. But, CISA has strongly recommended all the admins to immediately apply the updates and patches that are available to mitigate this flaw.

Guru Baran

Gurubaran is a co-founder of Cyber Security News and GBHackers On Security. He has 10+ years of experience as a Security Consultant, Editor, and Analyst in cybersecurity, technology, and communications.

Recent Posts

Bondnet Using High-Performance Bots For C2 Server

Threat actors abuse high-performance bots to carry out large-scale automated attacks efficiently. These bots can…

1 day ago

Discord-Based Malware Attacking Orgs Linux Systems In India

Linux systems are deployed mostly in servers, in the cloud, and in environments that are…

1 day ago

New Moonstone Sleet North Korean Actor Deploying Malicious Open Source Packages

In December 2023, we reported on how North Korean threat actors, particularly Jade Sleet, have…

1 day ago

Life360 Breach: Hackers Accessed the Tile Customer Support Platform

Life360, a company known for its family safety services, recently fell victim to a criminal…

1 day ago

Microsoft Delays Release of Controversial Windows AI Recall Tool Amid Privacy Concerns

Microsoft has announced that it will delay the broad release of its AI-powered Recall feature…

2 days ago

SmokeLoader – A Modular Malware With Range Of Capabilities

Hackers misuse malware for diverse illicit intentions, including data theft, disrupting systems, espionage, or distortion…

2 days ago