Open-Xchange OX AppSuite Backend information disclosure

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.6$0-$5k0.00

A vulnerability was found in Open-Xchange OX AppSuite up to 7.6.3-rev35/7.8.3-rev38/7.8.3-rev43/7.8.4-rev21 (Groupware Software). It has been declared as problematic. This vulnerability affects some unknown processing of the component Backend. The manipulation with an unknown input leads to a information disclosure vulnerability. The CWE definition for the vulnerability is CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. As an impact it is known to affect confidentiality. CVE summarizes:

The backend component in Open-Xchange OX App Suite before 7.6.3-rev36, 7.8.x before 7.8.2-rev39, 7.8.3 before 7.8.3-rev44, and 7.8.4 before 7.8.4-rev22 allows remote authenticated users to obtain sensitive information about external guest users via vectors related to the "groups" and "users" APIs.

The bug was discovered 06/08/2018. The weakness was presented 06/16/2018 as EDB-ID 44881 as not defined exploit (Exploit-DB). The advisory is shared for download at exploit-db.com. This vulnerability was named CVE-2018-5751 since 01/17/2018. The exploitation appears to be easy. The attack can be initiated remotely. Required for exploitation is a single authentication. Technical details are unknown but a public exploit is available. The MITRE ATT&CK project declares the attack technique as T1592.

After immediately, there has been an exploit disclosed. 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 7 days. During that time the estimated underground price was around $0-$5k.

Applying the patch 7.6.3-rev35/7.8.3-rev38/7.8.3-rev43/7.8.4-rev21 is able to eliminate this problem.

The vulnerability is also documented in the vulnerability database at Exploit-DB (44881). See 119597, 119609, 119610 and 119611 for similar entries.

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: 5.4
VulDB Meta Temp Score: 5.1

VulDB Base Score: 4.3
VulDB Temp Score: 3.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
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

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
ATT&CK: T1592

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: Patch
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍

Patch: 7.6.3-rev35/7.8.3-rev38/7.8.3-rev43/7.8.4-rev21

Timelineinfo

01/17/2018 🔍
06/08/2018 +142 days 🔍
06/15/2018 +6 days 🔍
06/16/2018 +1 days 🔍
06/16/2018 +0 days 🔍
06/16/2018 +0 days 🔍
06/16/2018 +0 days 🔍
02/19/2020 +613 days 🔍

Sourcesinfo

Vendor: open-xchange.com

Advisory: EDB-ID 44881
Status: Not defined

CVE: CVE-2018-5751 (🔍)
scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 06/16/2018 09:29
Updated: 02/19/2020 20:29
Changes: 06/16/2018 09:29 (71), 02/19/2020 20:29 (1)
Complete: 🔍

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