Open-Xchange OX AppSuite Frontend input validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.7$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in Open-Xchange OX AppSuite up to 7.6.3-rev30/7.8.2-rev30/7.8.3-rev40/7.8.4-rev19. The impacted element is an unknown function of the component Frontend. The manipulation results in input validation. This vulnerability is known as CVE-2018-5753. It is possible to launch the attack remotely. Furthermore, an exploit is available. A patch should be applied to remediate this issue.

Detailsinfo

A vulnerability classified as critical has been found in Open-Xchange OX AppSuite up to 7.6.3-rev30/7.8.2-rev30/7.8.3-rev40/7.8.4-rev19 (Groupware Software). Affected is an unknown functionality of the component Frontend. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on confidentiality, and integrity. CVE summarizes:

The frontend component in Open-Xchange OX App Suite before 7.6.3-rev31, 7.8.x before 7.8.2-rev31, 7.8.3 before 7.8.3-rev41, and 7.8.4 before 7.8.4-rev20 allows remote attackers to spoof the origin of e-mails via unicode characters in the "personal part" of a (1) From or (2) Sender address.

The bug was discovered 06/08/2018. The weakness was published 06/16/2018 (Website). The advisory is available at packetstormsecurity.com. This vulnerability is traded as CVE-2018-5753 since 01/17/2018. The exploitability is told to be easy. It is possible to launch the attack remotely. The successful exploitation needs a authentication. Technical details are unknown but a public exploit is available.

The exploit is shared for download 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-rev31/7.8.2-rev31/7.8.3-rev41/7.8.4-rev20 is able to eliminate this problem.

The vulnerability is also documented in the vulnerability database at Exploit-DB (44881). Similar entries are available at VDB-119597, VDB-119609, VDB-119608 and VDB-119611. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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Vendor

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Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.7

VulDB Base Score: 5.4
VulDB Temp Score: 4.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
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: Patch
Status: 🔍

0-Day Time: 🔍

Patch: 7.6.3-rev31/7.8.2-rev31/7.8.3-rev41/7.8.4-rev20

Timelineinfo

01/17/2018 🔍
06/08/2018 +142 days 🔍
06/15/2018 +6 days 🔍
06/16/2018 +1 days 🔍
06/16/2018 +0 days 🔍
11/25/2025 +2719 days 🔍

Sourcesinfo

Vendor: open-xchange.com

Advisory: 148118
Status: Confirmed

CVE: CVE-2018-5753 (🔍)
GCVE (CVE): GCVE-0-2018-5753
GCVE (VulDB): GCVE-100-119610
scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 06/16/2018 09:29
Updated: 11/25/2025 05:08
Changes: 06/16/2018 09:29 (64), 02/19/2020 20:25 (4), 03/27/2023 16:00 (4), 11/25/2025 05:08 (17)
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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