369 lines
20 KiB
JSON
369 lines
20 KiB
JSON
{
|
|
"dataType": "CVE_RECORD",
|
|
"dataVersion": "5.2",
|
|
"cveMetadata": {
|
|
"cveId": "CVE-2026-94206",
|
|
"assignerOrgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
|
|
"state": "PUBLISHED",
|
|
"assignerShortName": "EEF",
|
|
"dateReserved": "2026-09-24T09:30:02.102Z",
|
|
"datePublished": "2026-10-06T08:38:04.584Z",
|
|
"dateUpdated": "2026-10-06T11:36:25.466Z"
|
|
},
|
|
"containers": {
|
|
"cna": {
|
|
"affected": [
|
|
{
|
|
"collectionURL": "https://repo.hex.pm",
|
|
"cpes": [
|
|
"cpe:2.3:a:danielberkompas:cloak_ecto:*:*:*:*:*:*:*:*"
|
|
],
|
|
"defaultStatus": "unaffected",
|
|
"modules": [
|
|
"'Elixir.Cloak.Ecto.PBKDF2'"
|
|
],
|
|
"packageName": "cloak_ecto",
|
|
"packageURL": "pkg:hex/cloak_ecto",
|
|
"product": "cloak_ecto",
|
|
"programFiles": [
|
|
"lib/cloak_ecto/types/pbkdf2.ex"
|
|
],
|
|
"repo": "https://github.com/danielberkompas/cloak_ecto",
|
|
"vendor": "danielberkompas",
|
|
"versions": [
|
|
{
|
|
"lessThan": "*",
|
|
"status": "affected",
|
|
"version": "1.0.0-alpha.0",
|
|
"versionType": "semver"
|
|
}
|
|
]
|
|
},
|
|
{
|
|
"collectionURL": "https://github.com",
|
|
"cpes": [
|
|
"cpe:2.3:a:danielberkompas:cloak_ecto:*:*:*:*:*:*:*:*"
|
|
],
|
|
"defaultStatus": "unaffected",
|
|
"modules": [
|
|
"'Elixir.Cloak.Ecto.PBKDF2'"
|
|
],
|
|
"packageName": "danielberkompas/cloak_ecto",
|
|
"packageURL": "pkg:github/danielberkompas/cloak_ecto",
|
|
"product": "cloak_ecto",
|
|
"programFiles": [
|
|
"lib/cloak_ecto/types/pbkdf2.ex"
|
|
],
|
|
"repo": "https://github.com/danielberkompas/cloak_ecto",
|
|
"vendor": "danielberkompas",
|
|
"versions": [
|
|
{
|
|
"lessThan": "*",
|
|
"status": "affected",
|
|
"version": "a8fa1642b02f1c445a1ee8794c9095eb0921f8f3",
|
|
"versionType": "git"
|
|
}
|
|
]
|
|
},
|
|
{
|
|
"collectionURL": "https://repo.hex.pm",
|
|
"cpes": [
|
|
"cpe:2.3:a:danielberkompas:cloak:*:*:*:*:*:*:*:*"
|
|
],
|
|
"defaultStatus": "unaffected",
|
|
"modules": [
|
|
"'Elixir.Cloak.Fields.PBKDF2'"
|
|
],
|
|
"packageName": "cloak",
|
|
"packageURL": "pkg:hex/cloak",
|
|
"product": "cloak",
|
|
"programFiles": [
|
|
"lib/cloak/fields/pbkdf2.ex"
|
|
],
|
|
"repo": "https://github.com/danielberkompas/cloak",
|
|
"vendor": "danielberkompas",
|
|
"versions": [
|
|
{
|
|
"lessThan": "1.0.0-alpha.0",
|
|
"status": "affected",
|
|
"version": "0.7.0",
|
|
"versionType": "semver"
|
|
}
|
|
]
|
|
},
|
|
{
|
|
"collectionURL": "https://github.com",
|
|
"cpes": [
|
|
"cpe:2.3:a:danielberkompas:cloak:*:*:*:*:*:*:*:*"
|
|
],
|
|
"defaultStatus": "unaffected",
|
|
"modules": [
|
|
"'Elixir.Cloak.Fields.PBKDF2'"
|
|
],
|
|
"packageName": "danielberkompas/cloak",
|
|
"packageURL": "pkg:github/danielberkompas/cloak",
|
|
"product": "cloak",
|
|
"programFiles": [
|
|
"lib/cloak/fields/pbkdf2.ex"
|
|
],
|
|
"repo": "https://github.com/danielberkompas/cloak",
|
|
"vendor": "danielberkompas",
|
|
"versions": [
|
|
{
|
|
"lessThan": "681c9702b7cd9afe0e5a840751ab009f550c69a9",
|
|
"status": "affected",
|
|
"version": "8699e6417a162c39d9f0ef63511bd23d3f38d1d2",
|
|
"versionType": "git"
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"cpeApplicability": [
|
|
{
|
|
"nodes": [
|
|
{
|
|
"cpeMatch": [
|
|
{
|
|
"criteria": "cpe:2.3:a:danielberkompas:cloak_ecto:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "1.0.0-alpha.0",
|
|
"vulnerable": true
|
|
},
|
|
{
|
|
"criteria": "cpe:2.3:a:danielberkompas:cloak:*:*:*:*:*:*:*:*",
|
|
"versionEndExcluding": "1.0.0-alpha.0",
|
|
"versionStartIncluding": "0.7.0",
|
|
"vulnerable": true
|
|
}
|
|
],
|
|
"negate": false,
|
|
"operator": "OR"
|
|
}
|
|
],
|
|
"operator": "AND"
|
|
}
|
|
],
|
|
"credits": [
|
|
{
|
|
"lang": "en",
|
|
"type": "finder",
|
|
"value": "Peter Ullrich"
|
|
},
|
|
{
|
|
"lang": "en",
|
|
"type": "reporter",
|
|
"value": "Peter Ullrich"
|
|
},
|
|
{
|
|
"lang": "en",
|
|
"type": "coordinator",
|
|
"value": "Jonatan Männchen / EEF"
|
|
}
|
|
],
|
|
"dateAssigned": "2026-10-06T08:35:00.000Z",
|
|
"descriptions": [
|
|
{
|
|
"lang": "en",
|
|
"supportingMedia": [
|
|
{
|
|
"base64": false,
|
|
"type": "text/html",
|
|
"value": "<p>Use of Password Hash With Insufficient Computational Effort vulnerability in danielberkompas cloak_ecto and danielberkompas cloak allows an attacker who holds the hashed values and the configured secret to brute-force low-entropy plaintexts much faster than configured.</p>\n<p>The <code>dump/1</code> callback that <code>Cloak.Ecto.PBKDF2</code> (<code>Cloak.Fields.PBKDF2</code> in cloak before the Ecto code moved to cloak_ecto) injects into a field module calls <code>:pbkdf2.pbkdf2/4</code> with <code>config[:size]</code> in the iteration-count position. The <code>:iterations</code> setting is validated but never used. With the cloak_ecto defaults (<code>iterations: 600_000</code>, <code>size: 32</code>) each hash runs 32 PBKDF2 rounds instead of 600,000, so offline guessing of values such as email addresses costs about 18,750 times less than configured.</p>\n<p>This issue affects cloak_ecto: from 1.0.0-alpha.0 onward; cloak: from 0.7.0 before 1.0.0-alpha.0.</p>"
|
|
},
|
|
{
|
|
"base64": false,
|
|
"type": "text/markdown",
|
|
"value": "Use of Password Hash With Insufficient Computational Effort vulnerability in danielberkompas cloak_ecto and danielberkompas cloak allows an attacker who holds the hashed values and the configured secret to brute-force low-entropy plaintexts much faster than configured.\n\nThe `dump/1` callback that `Cloak.Ecto.PBKDF2` (`Cloak.Fields.PBKDF2` in cloak before the Ecto code moved to cloak_ecto) injects into a field module calls `:pbkdf2.pbkdf2/4` with `config[:size]` in the iteration-count position. The `:iterations` setting is validated but never used. With the cloak_ecto defaults (`iterations: 600_000`, `size: 32`) each hash runs 32 PBKDF2 rounds instead of 600,000, so offline guessing of values such as email addresses costs about 18,750 times less than configured.\n\nThis issue affects cloak_ecto: from 1.0.0-alpha.0 onward; cloak: from 0.7.0 before 1.0.0-alpha.0."
|
|
}
|
|
],
|
|
"value": "Use of Password Hash With Insufficient Computational Effort vulnerability in danielberkompas cloak_ecto and danielberkompas cloak allows an attacker who holds the hashed values and the configured secret to brute-force low-entropy plaintexts much faster than configured.\n\nThe dump/1 callback that Cloak.Ecto.PBKDF2 (Cloak.Fields.PBKDF2 in cloak before the Ecto code moved to cloak_ecto) injects into a field module calls :pbkdf2.pbkdf2/4 with config[:size] in the iteration-count position. The :iterations setting is validated but never used. With the cloak_ecto defaults (iterations: 600_000, size: 32) each hash runs 32 PBKDF2 rounds instead of 600,000, so offline guessing of values such as email addresses costs about 18,750 times less than configured.\n\nThis issue affects cloak_ecto: from 1.0.0-alpha.0 onward; cloak: from 0.7.0 before 1.0.0-alpha.0."
|
|
}
|
|
],
|
|
"impacts": [
|
|
{
|
|
"capecId": "CAPEC-55",
|
|
"descriptions": [
|
|
{
|
|
"lang": "en",
|
|
"supportingMedia": [
|
|
{
|
|
"base64": false,
|
|
"type": "text/html",
|
|
"value": "<p>An attacker who obtains a database dump and the PBKDF2 secret can recover hashed values with low entropy, such as email addresses, by offline guessing at a cost far below what the configuration promises.</p>"
|
|
},
|
|
{
|
|
"base64": false,
|
|
"type": "text/markdown",
|
|
"value": "An attacker who obtains a database dump and the PBKDF2 secret can recover hashed values with low entropy, such as email addresses, by offline guessing at a cost far below what the configuration promises."
|
|
}
|
|
],
|
|
"value": "An attacker who obtains a database dump and the PBKDF2 secret can recover hashed values with low entropy, such as email addresses, by offline guessing at a cost far below what the configuration promises."
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"metrics": [
|
|
{
|
|
"cvssV4_0": {
|
|
"Automatable": "NOT_DEFINED",
|
|
"Recovery": "NOT_DEFINED",
|
|
"Safety": "NOT_DEFINED",
|
|
"attackComplexity": "LOW",
|
|
"attackRequirements": "PRESENT",
|
|
"attackVector": "NETWORK",
|
|
"baseScore": 6.3,
|
|
"baseSeverity": "MEDIUM",
|
|
"privilegesRequired": "NONE",
|
|
"providerUrgency": "NOT_DEFINED",
|
|
"subAvailabilityImpact": "NONE",
|
|
"subConfidentialityImpact": "NONE",
|
|
"subIntegrityImpact": "NONE",
|
|
"userInteraction": "NONE",
|
|
"valueDensity": "NOT_DEFINED",
|
|
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N",
|
|
"version": "4.0",
|
|
"vulnAvailabilityImpact": "NONE",
|
|
"vulnConfidentialityImpact": "LOW",
|
|
"vulnIntegrityImpact": "NONE",
|
|
"vulnerabilityResponseEffort": "NOT_DEFINED"
|
|
},
|
|
"format": "CVSS",
|
|
"scenarios": [
|
|
{
|
|
"lang": "en",
|
|
"value": "GENERAL"
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"problemTypes": [
|
|
{
|
|
"descriptions": [
|
|
{
|
|
"cweId": "CWE-916",
|
|
"description": "CWE-916 Use of Password Hash With Insufficient Computational Effort",
|
|
"lang": "en",
|
|
"type": "CWE"
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"providerMetadata": {
|
|
"orgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
|
|
"shortName": "EEF",
|
|
"dateUpdated": "2026-10-06T08:38:04.584Z"
|
|
},
|
|
"references": [
|
|
{
|
|
"name": "EEF CNA record for CVE-2026-94206",
|
|
"tags": [
|
|
"related",
|
|
"third-party-advisory"
|
|
],
|
|
"url": "https://cna.erlef.org/cves/CVE-2026-94206.html"
|
|
},
|
|
{
|
|
"name": "OSV record EEF-CVE-2026-94206",
|
|
"tags": [
|
|
"related"
|
|
],
|
|
"url": "https://osv.dev/vulnerability/EEF-CVE-2026-94206"
|
|
},
|
|
{
|
|
"name": "Introducing commit a8fa164 in danielberkompas/cloak_ecto",
|
|
"tags": [
|
|
"related"
|
|
],
|
|
"url": "https://github.com/danielberkompas/cloak_ecto/commit/a8fa1642b02f1c445a1ee8794c9095eb0921f8f3"
|
|
},
|
|
{
|
|
"name": "Introducing commit 8699e64 in danielberkompas/cloak",
|
|
"tags": [
|
|
"related"
|
|
],
|
|
"url": "https://github.com/danielberkompas/cloak/commit/8699e6417a162c39d9f0ef63511bd23d3f38d1d2"
|
|
},
|
|
{
|
|
"name": "Fix commit 681c970 in danielberkompas/cloak",
|
|
"tags": [
|
|
"patch"
|
|
],
|
|
"url": "https://github.com/danielberkompas/cloak/commit/681c9702b7cd9afe0e5a840751ab009f550c69a9"
|
|
}
|
|
],
|
|
"source": {
|
|
"discovery": "EXTERNAL"
|
|
},
|
|
"title": "Cloak PBKDF2 field ignores the configured iteration count and runs only :size rounds",
|
|
"workarounds": [
|
|
{
|
|
"lang": "en",
|
|
"supportingMedia": [
|
|
{
|
|
"base64": false,
|
|
"type": "text/html",
|
|
"value": "<p>Override <code>dump/1</code> in the field module that uses <code>Cloak.Ecto.PBKDF2</code>, so that it calls <code>:pbkdf2.pbkdf2/5</code> with the configured <code>:iterations</code> and <code>:size</code>. Then recompute all stored hashes, because the existing values no longer match.</p>"
|
|
},
|
|
{
|
|
"base64": false,
|
|
"type": "text/markdown",
|
|
"value": "Override `dump/1` in the field module that uses `Cloak.Ecto.PBKDF2`, so that it calls `:pbkdf2.pbkdf2/5` with the configured `:iterations` and `:size`. Then recompute all stored hashes, because the existing values no longer match."
|
|
}
|
|
],
|
|
"value": "Override dump/1 in the field module that uses Cloak.Ecto.PBKDF2, so that it calls :pbkdf2.pbkdf2/5 with the configured :iterations and :size. Then recompute all stored hashes, because the existing values no longer match."
|
|
}
|
|
],
|
|
"x_proofOfConcept": [
|
|
{
|
|
"lang": "en",
|
|
"supportingMedia": [
|
|
{
|
|
"base64": false,
|
|
"type": "text/html",
|
|
"value": "<ol>\n<li>Define a field module with <code>use Cloak.Ecto.PBKDF2</code> and configure only a <code>:secret</code>, so that the defaults <code>iterations: 600_000</code> and <code>size: 32</code> apply.</li>\n<li>Call <code>dump/1</code> on a value.</li>\n<li>Compare the result with <code>:pbkdf2.pbkdf2({:hmac, :sha256}, value, secret, 32)</code> and with the same call at 600,000 rounds. It matches the 32-round hash, not the 600,000-round hash, and returns in microseconds instead of about one second.</li>\n</ol>"
|
|
},
|
|
{
|
|
"base64": false,
|
|
"type": "text/markdown",
|
|
"value": "1. Define a field module with `use Cloak.Ecto.PBKDF2` and configure only a `:secret`, so that the defaults `iterations: 600_000` and `size: 32` apply.\n2. Call `dump/1` on a value.\n3. Compare the result with `:pbkdf2.pbkdf2({:hmac, :sha256}, value, secret, 32)` and with the same call at 600,000 rounds. It matches the 32-round hash, not the 600,000-round hash, and returns in microseconds instead of about one second."
|
|
}
|
|
],
|
|
"value": "* Define a field module with use Cloak.Ecto.PBKDF2 and configure only a :secret, so that the defaults iterations: 600_000 and size: 32 apply.\n* Call dump/1 on a value.\n* Compare the result with :pbkdf2.pbkdf2({:hmac, :sha256}, value, secret, 32) and with the same call at 600,000 rounds. It matches the 32-round hash, not the 600,000-round hash, and returns in microseconds instead of about one second."
|
|
}
|
|
]
|
|
},
|
|
"adp": [
|
|
{
|
|
"metrics": [
|
|
{
|
|
"other": {
|
|
"type": "ssvc",
|
|
"content": {
|
|
"timestamp": "2026-10-06T11:34:00.942993Z",
|
|
"id": "CVE-2026-94206",
|
|
"options": [
|
|
{
|
|
"Exploitation": "poc"
|
|
},
|
|
{
|
|
"Automatable": "no"
|
|
},
|
|
{
|
|
"Technical Impact": "partial"
|
|
}
|
|
],
|
|
"role": "CISA Coordinator",
|
|
"version": "2.0.3"
|
|
}
|
|
}
|
|
}
|
|
],
|
|
"title": "CISA ADP Vulnrichment",
|
|
"providerMetadata": {
|
|
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
|
|
"shortName": "CISA-ADP",
|
|
"dateUpdated": "2026-10-06T11:36:25.466Z"
|
|
}
|
|
}
|
|
]
|
|
}
|
|
} |