MISP Overmind Event View Discloses Report Content Bypassing Report-Level ACL
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
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| MISP | MISP | affected |
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No data.
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| Vendor | Product | Versions | ||||||||
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| Misp | Misp |
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Vendor Solution
The report fetch in the Overmind event enrichment now applies the caller's ACL via EventReport::buildACLConditions($user), enforcing the report's own distribution policy in addition to the event-level access. A condition on EventReport.deleted = 0 is also added to exclude soft-deleted reports. The query is further hardened with recursive = -1 and an explicit contain clause to limit the data retrieved.
No CVSS v3.1
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.389% probability within 30 days)
| Link | Providers |
|---|---|
| https://github.com/MISP/MISP/commit/6932aace8 |
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| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
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| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Misp
Misp misp |
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| Vendors & Products |
Misp
Misp misp |
| Type | Values Removed | Values Added |
|---|---|---|
| Description | In MISP, the Overmind event view enriches an event with its most recent attached report for preview purposes. The enrichment logic fetched the report using only the event ID as the lookup condition, without applying the report's own distribution/ACL constraints. Because MISP reports carry an independent distribution setting that can be more restrictive than the parent event's distribution, an authenticated user who had read access to the event could retrieve and view a report whose distribution explicitly excluded that user. Additionally, the query did not filter out soft-deleted reports, allowing retrieval of reports that had been administratively removed. The result is an unauthorized disclosure of threat-intelligence report content to users who should not have access under the report's own access-control policy. The vulnerability requires an authenticated MISP user with at least read access to the affected event. | |
| Title | MISP Overmind Event View Discloses Report Content Bypassing Report-Level ACL | |
| Weaknesses | CWE-639 CWE-862 |
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| References |
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| Metrics |
cvssV4_0
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