Synacor Zimbra Collaboration up to 8.7.9 Persistent cross site scripting

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.3$0-$5k0.00

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 112803.

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
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

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

NVD Base Score: 🔍

Exploitinginfo

Name: Persistent
Class: Cross site scripting / Persistent
CWE: CWE-79 / CWE-74 / CWE-707
ATT&CK: T1059.007

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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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 (🔍)
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: 🔍

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