CVE-2021-42099

Zoho ManageEngine M365 Manager Plus before 4421 is vulnerable to file-upload remote code execution

published November 30, 2021

CVSS
โ€”
EPSS
7%
Percentile
94.0
In the wild
Unconfirmed
What it is

๐Ÿšจ A clever little file upload vulnerability allows attackers to execute code on any server running Zoho ManageEngine M365 Manager Plus before version 4421! ๐Ÿ”ฅ Think of it like a delivery service that accepts any package without checking the contents โ€” that means a malicious package could slip right in and wreak havoc on your system! If exploited, an attacker could gain devastating access, allowing them to run any code they desire on your server, potentially stealing data or causing widespread disruption. This is not just a nuisance; it could turn into a full-blown security nightmare if left unaddressed!

Put simply

Think of it like a delivery service that accepts any package without checking the contents โ€” that means a malicious package could slip right in and wreak havoc on your system! This vulnerability arises from a flaw in the file upload mechanism, which does not correctly validate the files being uploaded, allowing for remote code execution by injecting malicious code.

What to do

If exploited, an attacker could gain devastating access, allowing them to run any code they desire on your server, potentially stealing data or causing widespread disruption. This is not just a nuisance; it could turn into a full-blown security nightmare if left unaddressed! To safeguard your system, patch to version 4421 immediately and review your file upload validations to ensure rigorous checks are in place. Regular audits and security practices will help further protect against potential exploitation. You've got this! Follow these steps, and your system will be more secure in no time! ๐Ÿ›ก๏ธ

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.06759 ยท 94.0th percentile
Published
2021-11-30T18:47Z
EPSS history
Timeline
  • 30 NOV 18:47Z
    Zoho ManageEngine M365 Manager Plus before 4421 is vulnerable to file-upload remote code execution
    cvelistv5