Synacor Zimbra Collaboration up to 8.7.9 Persistent cross site scripting

HistoryDiffrelatejsonxmlCTI

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.
4.3	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Synacor Zimbra Collaboration up to 8.7.9. It has been rated as problematic. Affected by this vulnerability is an unknown functionality. The manipulation leads to cross site scripting (Persistent). This vulnerability is referenced as CVE-2017-8783. Remote exploitation of the attack is possible. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Synacor Zimbra Collaboration up to 8.7.9 (Groupware Software). It has been rated as problematic. This issue affects an unknown function. The manipulation with an unknown input leads to a cross site scripting vulnerability (Persistent). Using CWE to declare the problem leads to CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. Impacted is integrity. The summary by CVE is:

Synacor Zimbra Collaboration Suite (ZCS) before 8.7.10 has Persistent XSS.

The bug was discovered 05/04/2017. The weakness was published 02/04/2018 as Bug 107878 as not defined bug report (Bugzilla). The advisory is shared at bugzilla.zimbra.com. The identification of this vulnerability is CVE-2017-8783 since 05/04/2017. The attack may be initiated remotely. The successful exploitation requires a simple authentication. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1059.007 for this issue.

The vulnerability was handled as a non-public zero-day exploit for at least 275 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 8.7.10 eliminates this vulnerability.

Similar entry is available at VDB-112803. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Groupware Software

Vendor

Synacor

Name

Zimbra Collaboration

Version

License

free

Website

Vendor: https://synacor.com/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.4
VulDB Meta Temp Score: 4.4

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.4
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

Name: Persistent
Class: Cross site scripting / Persistent
CWE: CWE-79 / CWE-94 / CWE-74
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: 841670
OpenVAS Name: Zimbra Collaboration Suite Persistent XSS Vulnerability-01 Feb18
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Zimbra Collaboration 8.7.10

Timelineinfo

05/04/2017 🔍
05/04/2017 +0 days 🔍
02/03/2018 +275 days 🔍
02/04/2018 +1 days 🔍
02/05/2018 +1 days 🔍
02/03/2020 +728 days 🔍

Sourcesinfo

Vendor: synacor.com

Advisory: Bug 107878
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-8783 (🔍)
GCVE (CVE): GCVE-0-2017-8783
GCVE (VulDB): GCVE-100-112805
See also: 🔍

Entryinfo

Created: 02/05/2018 14:56
Updated: 02/03/2020 17:56
Changes: 02/05/2018 14:56 (66), 02/03/2020 17:56 (2)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.