CVE-2024-45519KEV · OVERDUE

Synacor Zimbra Collaboration Suite (ZCS) Command Execution Vulnerability

Critical · published October 2, 2024

Patch now

Confirmed exploited, and the score agrees

CVSS calls it critical at 10.0. It is confirmed in active exploitation. It sits in the 100.0th percentile for exploit probability.

730
days past CISA
deadline
CVSS v3.1
10.0
EPSS
100%
Percentile
100.0
In the wild
Confirmed
What it is

🚨 A single unauthenticated command can unleash chaos in the Zimbra Collaboration Suite! 🤯 Think of it like a hotel with a malfunctioning front desk where anyone can stroll in and book a penthouse suite without even showing ID — total mayhem! 🏨 An attacker could execute commands at will, potentially compromising sensitive data and disrupting services entirely. Your entire collaboration environment could be turned upside down in an instant, exposing private information and vital communications. This isn’t just an inconvenience; it’s a security nightmare! 🔥

Put simply

Think of it like a hotel with a malfunctioning front desk where anyone can stroll in and book a penthouse suite without even showing ID — total mayhem! 🏨 This vulnerability in the postjournal service allows unauthenticated users to execute arbitrary commands, bypassing intended security measures. This happens due to insufficient authentication checks in certain versions of Zimbra Collaboration Suite before specified patches.

What to do

An attacker could execute commands at will, potentially compromising sensitive data and disrupting services entirely. Your entire collaboration environment could be turned upside down in an instant, exposing private information and vital communications. This isn’t just an inconvenience; it’s a security nightmare! 🔥 Immediately patch to versions 8.8.15 Patch 46, 9.0.0 Patch 41, 10.0.9, or 10.1.1 as applicable. Conduct a thorough audit of your Zimbra installation to ensure no unauthorized access has occurred and review your authentication protocols to strengthen security. 🛡️ You've got this! Follow these steps to safeguard your system and keep your collaboration tools secure! 💪✨

The record
Technical detail
CVSS v3.1
10.0 · CRITICAL
Vector
CVSS:3.1/AC:L/AV:N/A:H/C:H/I:H/PR:N/S:C/UI:N
CVSS v4.0
Not supplied
EPSS
0.99907 · 100.0th percentile
Published
2024-10-02T00:00Z
KEV added
2024-10-03 · due 2024-10-24
EPSS history
Timeline
  • 03 OCT 00:00Z
    Added to CISA KEV — remediate by Oct 24
    kev
  • 02 OCT 00:00Z
    The postjournal service in Zimbra Collaboration (ZCS) before 8.8.15 Patch 46, 9 before 9.0.0 Patch 41, 10 before 10.0.9, and 10.1 before 10.1.1 sometimes…
    cvelistv5