CVE-2023-26436

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 v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
http://packetstormsecurity.com/files/173083/OX-App-Suite-SSRF-Resource-Consumption-Command-Injection.html	Third Party Advisory VDB Entry
http://seclists.org/fulldisclosure/2023/Jun/8	Mailing List Third Party Advisory
https://documentation.open-xchange.com/appsuite/security/advisories/csaf/2023/oxas-adv-2023-0002.json
https://software.open-xchange.com/products/appsuite/doc/Release_Notes_for_Patch_Release_6219_7.10.6_2023-03-20.pdf	Release Notes

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:open-xchange:open-xchange_appsuite_backend::::::::
	cpe:2.3:a:open-xchange:open-xchange_appsuite_backend:7.10.6:::::::*
	cpe:2.3:a:open-xchange:open-xchange_appsuite_backend:7.10.6:revision_39::::::

History

06 Jul 2023, 18:29

Type	Values Removed	Values Added
New CVE

Information

Published : 2023-06-20 08:15

Updated : 2024-02-04 23:37

NVD link : CVE-2023-26436

Mitre link : CVE-2023-26436

CVE.ORG link : CVE-2023-26436

JSON object : View

Products Affected

open-xchange

open-xchange_appsuite_backend

CWE

CWE-502

Deserialization of Untrusted Data

CWE-94

Improper Control of Generation of Code ('Code Injection')

{"id": "CVE-2023-26436", "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.8, "attackVector": "ADJACENT_NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 2.8}, {"type": "Secondary", "source": "security@open-xchange.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 7.1, "attackVector": "PHYSICAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 6.0, "exploitabilityScore": 0.5}]}, "published": "2023-06-20T08:15:09.607", "references": [{"url": "http://packetstormsecurity.com/files/173083/OX-App-Suite-SSRF-Resource-Consumption-Command-Injection.html", "tags": ["Third Party Advisory", "VDB Entry"], "source": "security@open-xchange.com"}, {"url": "http://seclists.org/fulldisclosure/2023/Jun/8", "tags": ["Mailing List", "Third Party Advisory"], "source": "security@open-xchange.com"}, {"url": "https://documentation.open-xchange.com/appsuite/security/advisories/csaf/2023/oxas-adv-2023-0002.json", "source": "security@open-xchange.com"}, {"url": "https://software.open-xchange.com/products/appsuite/doc/Release_Notes_for_Patch_Release_6219_7.10.6_2023-03-20.pdf", "tags": ["Release Notes"], "source": "security@open-xchange.com"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-502"}]}, {"type": "Secondary", "source": "security@open-xchange.com", "description": [{"lang": "en", "value": "CWE-94"}]}], "descriptions": [{"lang": "en", "value": "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.\n\n"}], "lastModified": "2024-01-12T08:15:41.010", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:open-xchange:open-xchange_appsuite_backend:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "74EDAF14-4BF1-4E62-AA44-86090B6BEEFD", "versionEndExcluding": "7.10.6"}, {"criteria": "cpe:2.3:a:open-xchange:open-xchange_appsuite_backend:7.10.6:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D41FD049-C028-4C6D-A9D7-9DD1820B2C5F"}, {"criteria": "cpe:2.3:a:open-xchange:open-xchange_appsuite_backend:7.10.6:revision_39:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "1B382924-49BE-43BF-B012-7F8F8A90CA6C"}], "operator": "OR"}]}], "sourceIdentifier": "security@open-xchange.com"}