CVE-2023-26434
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
AI Score
Confidence
High
EPSS
Percentile
56.0%
When adding an external mail account, processing of POP3 “capabilities” responses are not limited to plausible sizes. Attacker with access to a rogue POP3 service could trigger requests that lead to excessive resource usage and eventually service unavailability. We now limit accepted POP3 server response to reasonable length/size. No publicly available exploits are known.
Affected configurations
| Vendor | Product | Version | CPE |
|---|---|---|---|
| open-xchange | open-xchange_appsuite_backend | * | cpe:2.3:a:open-xchange:open-xchange_appsuite_backend:*:*:*:*:*:*:*:* |
| 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 | 7.10.6 | cpe:2.3:a:open-xchange:open-xchange_appsuite_backend:7.10.6:revision_39:*:*:*:*:*:* |
References
packetstormsecurity.com/files/173083/OX-App-Suite-SSRF-Resource-Consumption-Command-Injection.html
seclists.org/fulldisclosure/2023/Jun/8
documentation.open-xchange.com/appsuite/security/advisories/csaf/2023/oxas-adv-2023-0002.json
software.open-xchange.com/products/appsuite/doc/Release_Notes_for_Patch_Release_6219_7.10.6_2023-03-20.pdf
Related
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
AI Score
Confidence
High
EPSS
Percentile
56.0%