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OXCVE-2023-26430

HistoryAug 02, 2023 - 1:15 p.m.

CVE-2023-26430

2023-08-0213:15:10

CWE-77

web.nvd.nist.gov

2467

cve-2023-26430

sieve

mail-filter

security

unauthorized access

control characters

exploitation

api

sanitization

CVSS3

4.3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

AI Score

4.7

Confidence

High

EPSS

0.002

Percentile

54.4%

JSON

Attackers with access to user accounts can inject arbitrary control characters to SIEVE mail-filter rules. This could be abused to access SIEVE extension that are not allowed by App Suite or to inject rules which would break per-user filter processing, requiring manual cleanup of such rules. We have added sanitization to all mail-filter APIs to avoid forwardning control characters to subsystems. No publicly available exploits are known.

Affected configurations

Nvd

Node

open-xchangeopen-xchange_appsuite_backendMatch7.10.6

open-xchangeopen-xchange_appsuite_backendMatch8.10.0

VendorProductVersionCPE
open-xchangeopen-xchange_appsuite_backend7.10.6cpe:2.3:a:open-xchange:open-xchange_appsuite_backend:7.10.6:*:*:*:*:*:*:*
open-xchangeopen-xchange_appsuite_backend8.10.0cpe:2.3:a:open-xchange:open-xchange_appsuite_backend:8.10.0:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
open-xchange	open-xchange_appsuite_backend	7.10.6	cpe:2.3:a:open-xchange:open-xchange_appsuite_backend:7.10.6:::::::*
open-xchange	open-xchange_appsuite_backend	8.10.0	cpe:2.3:a:open-xchange:open-xchange_appsuite_backend:8.10.0:::::::*

CNA Affected

[
  {
    "defaultStatus": "unaffected",
    "modules": [
      "backend"
    ],
    "product": "OX App Suite",
    "vendor": "OX Software GmbH",
    "versions": [
      {
        "lessThanOrEqual": "7.10.6-rev42",
        "status": "affected",
        "version": "0",
        "versionType": "semver"
      },
      {
        "lessThanOrEqual": "8.10",
        "status": "affected",
        "version": "0",
        "versionType": "semver"
      }
    ]
  }
]

References

packetstormsecurity.com/files/173943/OX-App-Suite-SSRF-SQL-Injection-Cross-Site-Scripting.html

seclists.org/fulldisclosure/2023/Aug/8

documentation.open-xchange.com/appsuite/security/advisories/csaf/2023/oxas-adv-2023-0003.json

software.open-xchange.com/products/appsuite/doc/Release_Notes_for_Patch_Release_6230_7.10.6_2023-05-02.pdf

CVSS3

4.3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

AI Score

4.7

Confidence

High

EPSS

0.002

Percentile

54.4%

JSON

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