Patchfirst
CVE-2022-41033 KEV High · 7.8 EPSS 1.9%

Microsoft Windows COM+ Event System Service Privilege Escalation Vulnerability

Microsoft · Windows COM+ Event System Service

Summary

The Windows COM+ Event System Service in Microsoft Windows contains a privilege escalation flaw classified as type confusion, where a resource is accessed using an incompatible type. A local attacker holding low-privileged credentials, with no user interaction required, can exploit it to gain elevated privileges on the affected system.

Official description · NVD

Windows COM+ Event System Service Elevation of Privilege Vulnerability

Breakdown
59.4 / 100
Exploited
Yes, in CISA KEV
Reports
0
Tactics
2/15

How an attack unfolds

Based on mappings. Select a step to see the evidence.
  1. How attackers get in

  2. What they do

First seen exploited the day it was disclosed.

  1. DisclosedFirst seen exploitedVulnCheck KEV evidenceAdded to CISA KEVEU database agreesday 0

CISA KEV listing is when exploitation was confirmed, not necessarily the first attack.

techniques

2 , grouped by in kill-chain order 2

Initial AccessTA0001

MITRE CTID mapping of the KEV entry · how it is exploited

CVE-2022-41033 is exploited by an attacker who has obtained access to the target system. The vulnerability lies in the Windows COM+ Event System Service, due to improper handling of privilege escalation scenarios. This vulnerability has been exploited by threat actors to gain elevated privileges on Windows systems. Attackers leveraged this flaw to execute arbitrary system commands, allowing them to manipulate system processes and potentially deploy additional malware or perform further malicious activities. The exploit in question is actively being used in the wild, primarily in targeted attacks. It involves pairing the elevation of privilege vulnerability with other code-execution exploits, often through social engineering tactics such as enticing a user to open a malicious attachment or visit a harmful website. Once the vulnerability is exploited, attackers can manipulate system privileges to perform arbitrary actions with SYSTEM-level permissions. This allows them to achieve their objectives, such as installing programs, viewing or changing data, and creating new accounts with full user rights.

Privilege EscalationTA0004

MITRE CTID mapping of the KEV entry · primary impact

Detection

0 rules for this CVE · 55 general rules for its techniques

Rules for this CVE

0 that reference CVE-2022-41033 directly.

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What security researchers reported

Not named in any threat report yet

Also mentioned in 50 community threat pulses (AlienVault OTX)

Weaker evidence

Pulses are indicator collections that anyone can publish. A mention is not confirmation of exploitation.

References

3 links, grouped by NVD tag
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