Synacor Zimbra Collaboration Suite 8.8.15/9.0 amavisd public unrestricted upload

CVSS Meta Temp Score
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CTI Interest Score
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8.4$0-$5k0.00

Summaryinfo

A vulnerability has been found in Synacor Zimbra Collaboration Suite 8.8.15/9.0 and classified as critical. This affects an unknown part of the file /opt/zimbra/jetty/webapps/zimbra/public of the component amavisd. Performing a manipulation results in unrestricted upload. This vulnerability is identified as CVE-2022-41352. Additionally, an exploit exists.

Detailsinfo

A vulnerability, which was classified as critical, was found in Synacor Zimbra Collaboration Suite 8.8.15/9.0 (Groupware Software). This affects an unknown part of the file /opt/zimbra/jetty/webapps/zimbra/public of the component amavisd. The manipulation with an unknown input leads to a unrestricted upload vulnerability. CWE is classifying the issue as CWE-434. The product allows the attacker to upload or transfer files of dangerous types that can be automatically processed within the product's environment. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

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.

The weakness was released 09/26/2022. The advisory is shared at forums.zimbra.org. This vulnerability is uniquely identified as CVE-2022-41352 since 09/26/2022. Technical details and a exploit are known. MITRE ATT&CK project uses the attack technique T1608.002 for this issue.

It is declared as attacked. The CISA Known Exploited Vulnerabilities Catalog lists this issue since 10/20/2022 with a due date of 11/10/2022:

Apply updates per vendor instructions.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.4
VulDB Meta Temp Score: 8.4

VulDB Base Score: 5.5
VulDB Temp Score: 5.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CNA Base Score: 9.8
CNA Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Unrestricted upload
CWE: CWE-434 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Attacked

EPSS Score: 🔍
EPSS Percentile: 🔍

KEV Added: 🔍
KEV Due: 🔍
KEV Remediation: 🔍
KEV Ransomware: 🔍
KEV Notice: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

09/26/2022 🔍
09/26/2022 +0 days 🔍
09/26/2022 +0 days 🔍
11/03/2025 +1134 days 🔍

Sourcesinfo

Vendor: synacor.com

Advisory: 169458
Status: Confirmed

CVE: CVE-2022-41352 (🔍)
GCVE (CVE): GCVE-0-2022-41352
GCVE (VulDB): GCVE-100-209541
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 09/26/2022 08:13
Updated: 11/03/2025 18:00
Changes: 09/26/2022 08:13 (40), 10/23/2022 14:27 (1), 10/23/2022 14:28 (11), 04/27/2024 19:11 (27), 09/26/2024 00:32 (1), 02/03/2025 20:58 (12), 02/25/2025 02:42 (4), 11/03/2025 18:00 (1)
Complete: 🔍
Cache ID: 216::103

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