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CVE-2023-26436

Published: Jun 20, 2023Updated: Nov 21, 2024 Sources: CVE List NVD BDUCWE-94
NVD MITRE
7.1CVSSHIGH
EPSS Score
1.3%
Top 34.4%
CISA KEV
Not in KEV
Exploits
1 Known
Remediation
Patch Available

Description

Attackers with access to the "documentconverterws" API were able to inject serialized Java objects, that were not properly checked during deserialization. Access to this API endpoint is restricted to local networks by default. Arbitrary code could be injected that is being executed when processing the request. A check has been introduced to restrict processing of legal and expected classes for this API. We now log a warning in case there are attempts to inject illegal classes. No publicly available exploits are known.

CVSS Vector Breakdown

AV:PAC:HPR:NUI:NS:CC:HI:HA:H
Exploitability
AV:PAttack Vector
Physical
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:CScope
Changed
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-94CWE-502

Affected Products

OX App Suite officeOpen-XchangeCommunications
OX App SuiteOX Software GmbH
On-prem
Communications / email-server-client
open-xchange appsuite backendopen-xchangeCommunications
open-xchangecommercialDECommunicationsaka open-xchange gmbh, ox
ox software gmbhcommercialDECommunicationsaka ox app suite

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

1 exploit source identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available

MITRE ATT&CK

3 techniques
Execution
Initial Access
View detailed technique mapping

References

http://packetstormsecurity.com/files/173083/OX-App-Suite-SSRF-Resource-Consumption-Command-Injection.html
packetstormsecurity.com
http://seclists.org/fulldisclosure/2023/Jun/8
seclists.org
https://documentation.open-xchange.com/security/advisories/csaf/oxas-adv-2023-0002.json
documentation.open-xchange.com
and 2 more references View all →

Timeline

Published
Jun 20, 2023
Last Updated
Nov 21, 2024

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