Synacor Zimbra Collaboration up to 8.6.x privileges management

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.3	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Synacor Zimbra Collaboration up to 8.6.x. It has been declared as critical. This vulnerability affects unknown code. The manipulation results in privileges management. This vulnerability is reported as CVE-2016-3404. The attack can be launched remotely. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in Synacor Zimbra Collaboration up to 8.6.x (Groupware Software). Affected is some unknown processing. The manipulation with an unknown input leads to a privileges management vulnerability. CWE is classifying the issue as CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. This is going to have an impact on integrity. CVE summarizes:

Unspecified vulnerability in Zimbra Collaboration before 8.7.0 allows remote attackers to affect integrity via unknown vectors, aka bug 103959.

The bug was discovered 01/18/2017. The weakness was disclosed 01/18/2017 as Bug 103959 (Website). The advisory is shared for download at wiki.zimbra.com. This vulnerability is traded as CVE-2016-3404 since 03/17/2016. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1068.

Upgrading to version 8.7.0 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 95894†). The entries VDB-90985, VDB-95470, VDB-95471 and VDB-95473 are pretty similar. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

• Groupware Software

Vendor

• Synacor

Name

• Zimbra Collaboration

Version

• 8.0
• 8.1
• 8.2
• 8.3
• 8.4
• 8.5
• 8.6

License

• free

Website

• Vendor: https://synacor.com/

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Privileges management
CWE: CWE-269 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

OpenVAS ID: 800201
OpenVAS Name: Zimbra Collaboration < 8.7.0 Multiple Vulnerabilities
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Zimbra Collaboration 8.7.0

Timelineinfo

03/17/2016 🔍
01/18/2017 +307 days 🔍
01/18/2017 +0 days 🔍
01/18/2017 +0 days 🔍
01/18/2017 +0 days 🔍
01/19/2017 +1 days 🔍
05/13/2026 +3401 days 🔍

Sourcesinfo

Vendor: synacor.com

Advisory: Bug 103959
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-3404 (🔍)
GCVE (CVE): GCVE-0-2016-3404
GCVE (VulDB): GCVE-100-95472
SecurityFocus: 95894 - Zimbra Collaboration Suite CVE-2016-3404 Unspecified Security Vulnerability

See also: 🔍

Entryinfo

Created: 01/19/2017 09:39
Updated: 05/13/2026 18:43
Changes: 01/19/2017 09:39 (64), 02/03/2020 20:37 (5), 05/13/2026 18:43 (17)
Complete: 🔍
Cache ID: 216::103

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Discussion

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