Open-Xchange OX AppSuite up to 7.8.1-rev9 Cookie Stored information disclosure

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 (≈)
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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.
4.8$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in Open-Xchange OX AppSuite up to 7.8.1-rev9. The impacted element is an unknown function of the component Cookie Handler. Such manipulation leads to information disclosure (Stored). This vulnerability is listed as CVE-2016-4027. The attack may be performed from remote. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Open-Xchange OX AppSuite up to 7.8.1-rev9 (Groupware Software). It has been rated as critical. Affected by this issue is an unknown functionality of the component Cookie Handler. The manipulation with an unknown input leads to a information disclosure vulnerability (Stored). Using CWE to declare the problem leads to CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. Impacted is confidentiality, integrity, and availability. CVE summarizes:

An issue was discovered in Open-Xchange OX App Suite before 7.8.1-rev10. App Suite frontend offers to control whether a user wants to store cookies that exceed the session duration. This functionality is useful when logging in from clients with reduced privileges or shared environments. However the setting was incorrectly recognized and cookies were stored regardless of this setting when the login was performed using a non-interactive login method. In case the setting was enforced by middleware configuration or the user went through the interactive login page, the workflow was correct. Cookies with authentication information may become available to other users on shared environments. In case the user did not properly log out from the session, third parties with access to the same client can access a user's account.

The bug was discovered 06/22/2016. The weakness was presented 12/15/2016 (Website). The advisory is shared for download at packetstormsecurity.com. This vulnerability is handled as CVE-2016-4027 since 04/15/2016. The attack may be launched remotely. The successful exploitation needs a simple authentication. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1592.

The vulnerability was handled as a non-public zero-day exploit for at least 176 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 7.8.1-rev10 eliminates this vulnerability.

See VDB-94512, VDB-94511, VDB-94510 and VDB-94507 for similar entries. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.9
VulDB Meta Temp Score: 4.8

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 3.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Name: Stored
Class: Information disclosure / Stored
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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OpenVAS ID: 103021
OpenVAS Name: Open-Xchange AppSuite authentication cookies Information Disclosure Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: OX AppSuite 7.8.1-rev10

Timelineinfo

04/15/2016 🔍
06/22/2016 +68 days 🔍
12/15/2016 +176 days 🔍
12/15/2016 +0 days 🔍
12/15/2016 +0 days 🔍
10/08/2022 +2123 days 🔍

Sourcesinfo

Vendor: open-xchange.com

Advisory: 137599
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-4027 (🔍)
GCVE (CVE): GCVE-0-2016-4027
GCVE (VulDB): GCVE-100-94508
SecurityTracker: 1036157

See also: 🔍

Entryinfo

Created: 12/15/2016 16:51
Updated: 10/08/2022 18:32
Changes: 12/15/2016 16:51 (65), 07/08/2019 06:31 (3), 10/08/2022 18:32 (5)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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