Server-side request forgery in Open-Xchange GmbH OX App Suite
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-918 and the CVSS impact.
Summary
IPv4-mapped IPv6 addresses did not get recognized as "local" by the code and a connection attempt is made. Attackers with access to user accounts could use this to bypass existing deny-list functionality and trigger requests to restricted network infrastructure to gain insight about topology and running services. We now respect possible IPV4-mapped IPv6 addresses when checking if contained in a deny-list. No publicly available exploits are known.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Open-Xchange GmbH | OX App Suite | up to 7.10.6-rev39; up to 8.10 | — | No fix listed | CNA |
- OX App Suite VendorOpen-Xchange GmbH Affected up to 7.10.6-rev39; up to 8.10 Fixed in — No fix listed CNA
CPE configurations NVD · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:open-xchange:open-xchange_appsuite_backend:*:*:*:*:*:*:*:* | before 7.10.6; 8.0.0 to before 8.11.0 | Vulnerable | Open-Xchange GmbH |
| cpe:2.3:a:open-xchange:open-xchange_appsuite_backend:7.10.6:*:*:*:*:*:*:* | 7.10.6 | Vulnerable | Open-Xchange GmbH |
| cpe:2.3:a:open-xchange:open-xchange_appsuite_backend:7.10.6:revision_39:*:*:*:*:*:* | 7.10.6 revision_39 | Vulnerable | Open-Xchange GmbH |
- cpe:2.3:a:open-xchange:open-xchange_appsuite_backend:*:*:*:*:*:*:*:* Versions before 7.10.6; 8.0.0 to before 8.11.0 Vulnerable ·Open-Xchange GmbH
- cpe:2.3:a:open-xchange:open-xchange_appsuite_backend:7.10.6:*:*:*:*:*:*:* Versions 7.10.6 Vulnerable ·Open-Xchange GmbH
- cpe:2.3:a:open-xchange:open-xchange_appsuite_backend:7.10.6:revision_39:*:*:*:*:*:* Versions 7.10.6 revision_39 Vulnerable ·Open-Xchange GmbH
Remediation
No fixed version listed by the sources yet.
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Advisory ·
OX App Suite — documentation.open-xchange.com/appsuite/security/advisories…
9 records Highest priority Priority MEDIUM 1 MEDIUM, 8 LOW
Other records, highest priority first
- TI-2023-11584 Code injection in Open-Xchange GmbH OX App SuitePriority MEDIUM 41
- TI-2023-11576 Authorization bypass in Open-Xchange GmbH OX App SuitePriority LOW 31
- TI-2023-11577 Command injection in Open-Xchange GmbH OX App SuitePriority LOW 25
Timeline
- 2026-10-02 Threatist record created from CVE-2023-26431
- 2026-10-03 Alias added: GHSA-fqgf-87c4-qvqm
References
Advisory 3
More Open-Xchange GmbH Open-xchange Appsuite Backend vulnerabilities
- TI-2023-11591 SQL injection in Open-Xchange GmbH OX App Suite CVSS 3.1CRITICAL 9.8
- TI-2023-11584 Code injection in Open-Xchange GmbH OX App Suite CVSS 3.1HIGH 8.8
- TI-2023-11598 Functions with insufficient randomness were used to generate authorization tokens of the… CVSS 3.1HIGH 7.5
- TI-2023-11576 Authorization bypass in Open-Xchange GmbH OX App Suite CVSS 3.1MEDIUM 6.5
- TI-2016-05883 Cross-site scripting (XSS) vulnerability in Open-Xchange (OX) AppSuite backend before… CVSS 3.0MEDIUM 6.1
- TI-2023-11577 Command injection in Open-Xchange GmbH OX App Suite CVSS 3.1MEDIUM 5.3
Sources
- CVE-2023-26431 · CVE Program
- CVE-2023-26431 · NVD
- FIRST EPSS
- GHSA-fqgf-87c4-qvqm · GitHub Advisory Database · CC BY 4.0
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