OX Software OX App Suite JDK DNS Cache server-side request forgery

CVSS Meta Temp Score
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CTI Interest Score
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4.2$0-$5k0.00

Summaryinfo

A vulnerability was found in OX Software OX App Suite and classified as critical. This issue affects some unknown processing of the component JDK DNS Cache. The manipulation results in server-side request forgery. This vulnerability is reported as CVE-2023-26438. The attack can be launched remotely. No exploit exists. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability was found in OX Software OX App Suite (the affected version is unknown). It has been classified as critical. Affected is an unknown code of the component JDK DNS Cache. The manipulation with an unknown input leads to a server-side request forgery vulnerability. CWE is classifying the issue as CWE-918. The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination. This is going to have an impact on confidentiality. CVE summarizes:

External service lookups for a number of protocols were vulnerable to a time-of-check/time-of-use (TOCTOU) weakness, involving the JDK DNS cache. Attackers that were timing DNS cache expiry correctly were able to inject configuration that would bypass existing network deny-lists. Attackers could exploit this weakness to discover the existence of restricted network infrastructure and service availability. Improvements were made to include deny-lists not only during the check of the provided connection data, but also during use. No publicly available exploits are known.

The weakness was disclosed 08/02/2023 as oxas-adv-2023-0003. The advisory is shared for download at documentation.open-xchange.com. This vulnerability is traded as CVE-2023-26438 since 02/22/2023. There are neither technical details nor an exploit publicly available.

Applying a patch is able to eliminate this problem. The bugfix is ready for download at software.open-xchange.com.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Vendor

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.2

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 4.3
CNA Vector (Open-Xchange): 🔍

CVSSv2info

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

Exploitinginfo

Class: Server-side request forgery
CWE: CWE-918
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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: software.open-xchange.com

Timelineinfo

02/22/2023 🔍
08/02/2023 +160 days 🔍
08/02/2023 +0 days 🔍
08/02/2023 +0 days 🔍

Sourcesinfo

Advisory: oxas-adv-2023-0003
Status: Confirmed

CVE: CVE-2023-26438 (🔍)
GCVE (CVE): GCVE-0-2023-26438
GCVE (VulDB): GCVE-100-235932

Entryinfo

Created: 08/02/2023 19:14
Changes: 08/02/2023 19:14 (49), 08/02/2023 19:15 (1)
Complete: 🔍
Cache ID: 216::103

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