CRITICAL🚩 CISA KEV⚡ EXPLOIT✓ PATCH🇵🇱 Wersja polska

CVE-2022-41352

CVSS 9.8v3.1pub. 2022-09-26upd. 2025-11-03

An issue was discovered in Zimbra Collaboration (ZCS) 8.8.15 and 9.0. An attacker can upload arbitrary files through amavis via a cpio loophole (extraction to /opt/zimbra/jetty/webapps/zimbra/public) that can lead to incorrect access to any other user accounts. Zimbra recommends pax over cpio. Also, pax is in the prerequisites of Zimbra on Ubuntu; however, pax is no longer part of a default Red Hat installation after RHEL 6 (or CentOS 6). Once pax is installed, amavis automatically prefers it over cpio.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Synacor Zimbra Collaboration Suite
APP
Synacor
8.8.159.0.0

CISA KEV — detailsi

Vendori: Synacor
Producti: Zimbra Collaboration Suite (ZCS)
Added to KEVi: October 20, 2022
Remediation deadline (US Federal)i: November 10, 2022(overdue)

🇺🇸CISA KEV (original)↗

Required action (CISA)i

Apply updates per vendor instructions.

CISA descriptioni

Synacor Zimbra Collaboration Suite (ZCS) allows an attacker to upload arbitrary files using cpio package to gain incorrect access to any other user accounts.

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