CVE Watch10 de set. de 2026

CVE-2022-41352

Synacor Zimbra Collaboration Suite (ZCS) Arbitrary File Upload Vulnerability

CVSS

9.8

Crítica

EPSS

95.5%

p100

KEV

SIM

20 de out. de 2022

Exploit Today

0-100

Publicado: 26 de set. de 2022 · Última mod.: 10 de set. de 2026 · CWE-22

EPSS · 30d

95.5%EPSS · 30 dias95.5%

2026-10-082026-11-05

Ficha do catálogo KEV

Produto

Synacor / Zimbra Collaboration Suite (ZCS)

Vulnerabilidade

Synacor Zimbra Collaboration Suite (ZCS) Arbitrary File Upload Vulnerability

Adicionado ao KEV

20 de out. de 2022

Corrigir até

10 de nov. de 2022

Uso conhecido em ransomware

Sim

Descrição resumida

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

Ação necessária

Apply updates per vendor instructions.

Notas

https://wiki.zimbra.com/wiki/Security_Center; https://nvd.nist.gov/vuln/detail/CVE-2022-41352

Descrição técnica

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.

Referências oficiais

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