Open-Xchange OX Guard up to 2.4.2-rev4 guest Reader cross site scripting

CVSS Meta Temp Score
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CTI Interest Score
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5.0$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in Open-Xchange OX Guard up to 2.4.2-rev4. Affected is an unknown function of the component guest Reader. Executing a manipulation can lead to cross site scripting. This vulnerability is tracked as CVE-2016-6851. The attack can be launched remotely. Moreover, an exploit is present. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Open-Xchange OX Guard up to 2.4.2-rev4 and classified as problematic. This vulnerability affects an unknown functionality of the component guest Reader. The manipulation with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect integrity. CVE summarizes:

An issue was discovered in Open-Xchange OX Guard before 2.4.2-rev5. Script code can be provided as parameter to the OX Guard guest reader web application. This allows cross-site scripting attacks against arbitrary users since no prior authentication is needed. Malicious script code can be executed within a user's context. This can lead to session hijacking or triggering unwanted actions via the web interface (sending mail, deleting data etc.) in case the user has an active session on the same domain already.

The bug was discovered 09/13/2016. The weakness was disclosed 12/15/2016 by Benjamin Daniel Mussler (Website). The advisory is available at packetstormsecurity.com. This vulnerability was named CVE-2016-6851 since 08/18/2016. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. Technical details are unknown but a public exploit is available. This vulnerability is assigned to T1059.007 by the MITRE ATT&CK project.

It is possible to download the exploit at exploit-db.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 93 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 2.4.2-rev5 eliminates this vulnerability.

The vulnerability is also documented in the databases at Exploit-DB (40377) and SecurityFocus (BID 92920†). The entries VDB-94524 and VDB-94525 are pretty similar. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.2
VulDB Meta Temp Score: 5.0

VulDB Base Score: 4.3
VulDB Temp Score: 3.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.1
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: OX Guard 2.4.2-rev5

Timelineinfo

08/18/2016 🔍
09/13/2016 +26 days 🔍
09/13/2016 +0 days 🔍
12/15/2016 +93 days 🔍
12/15/2016 +0 days 🔍
12/15/2016 +0 days 🔍
12/08/2024 +2915 days 🔍

Sourcesinfo

Vendor: open-xchange.com

Advisory: 138701
Researcher: Benjamin Daniel Mussler
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-6851 (🔍)
GCVE (CVE): GCVE-0-2016-6851
GCVE (VulDB): GCVE-100-94522
SecurityFocus: 92920 - Open-Xchange OX Guard Multiple Cross Site Scripting Vulnerabilities

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 12/15/2016 16:53
Updated: 12/08/2024 08:17
Changes: 12/15/2016 16:53 (60), 07/08/2019 08:42 (10), 10/08/2022 19:32 (3), 12/08/2024 08:17 (16)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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