MISP Unthrottled Authentication Failure Log Writes Enable Resource Exhaustion
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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| Vendor | Product | Versions | ||||||||
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| Misp | Misp |
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Vendor Solution
The fix applies the existing hourly per-key log throttle to the two previously unguarded authentication-failure log writes. The throttle key is now derived from the client's source IP address rather than from caller-supplied input, preventing an attacker from generating unbounded Redis throttle entries. A per-request memo (stored in Configure::read('CurrentRequestAuthFailKeys')) is added to _shouldLog() to prevent duplicate log entries when beforeFilter() executes a second time via CakeErrorController on an exception, ensuring one request produces at most one log entry per key regardless of the operator's log_each_individual_auth_fail setting.
No CVSS v3.1
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.571% probability within 30 days)
| Link | Providers |
|---|---|
| https://github.com/MISP/MISP/commit/2bf887433 |
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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 | Affected versions of MISP do not consistently apply the existing authentication-failure logging throttle. Two API authentication failure branches wrote directly to the Log model: - API requests with no authentication key; - requests supplying an API key with an incorrect length Unlike other authentication failures, these paths bypassed _shouldLog(), so every request could create another durable auth_fail entry. Version affected: ≤2.5.45 | |
| Title | MISP Unthrottled Authentication Failure Log Writes Enable Resource Exhaustion | |
| Weaknesses | CWE-400 CWE-770 |
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| References |
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| Metrics |
cvssV4_0
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