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https://github.com/fkie-cad/nvd-json-data-feeds.git
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71 lines
2.9 KiB
JSON
71 lines
2.9 KiB
JSON
{
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"id": "CVE-2023-34252",
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"sourceIdentifier": "security-advisories@github.com",
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"published": "2023-06-14T22:15:09.397",
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"lastModified": "2023-06-15T12:39:22.420",
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"vulnStatus": "Awaiting Analysis",
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"descriptions": [
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{
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"lang": "en",
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"value": "Grav is a file-based Web platform. Prior to version 1.7.42, there is a logic flaw in the `GravExtension.filterFilter()` function whereby validation against a denylist of unsafe functions is only performed when the argument passed to filter is a string. However, passing an array as a callable argument allows the validation check to be skipped. Consequently, a low privileged attacker with login access to Grav Admin panel and page creation/update permissions is able to inject malicious templates to obtain remote code execution. The vulnerability can be found in the `GravExtension.filterFilter()` function declared in `/system/src/Grav/Common/Twig/Extension/GravExtension.php`. Version 1.7.42 contains a patch for this issue. End users should also ensure that `twig.undefined_functions` and `twig.undefined_filters` properties in `/path/to/webroot/system/config/system.yaml` configuration file are set to `false` to disallow Twig from treating undefined filters/functions as PHP functions and executing them."
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}
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],
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"metrics": {
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"cvssMetricV31": [
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{
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"source": "security-advisories@github.com",
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"type": "Secondary",
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"cvssData": {
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"version": "3.1",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
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"attackVector": "NETWORK",
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"attackComplexity": "LOW",
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"privilegesRequired": "LOW",
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"userInteraction": "NONE",
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"scope": "UNCHANGED",
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"confidentialityImpact": "HIGH",
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"integrityImpact": "HIGH",
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"availabilityImpact": "HIGH",
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"baseScore": 8.8,
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"baseSeverity": "HIGH"
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},
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"exploitabilityScore": 2.8,
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"impactScore": 5.9
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}
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]
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},
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"weaknesses": [
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{
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"source": "security-advisories@github.com",
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"type": "Primary",
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"description": [
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{
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"lang": "en",
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"value": "CWE-1336"
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},
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{
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"lang": "en",
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"value": "CWE-184"
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}
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]
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}
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],
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"references": [
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{
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"url": "https://github.com/getgrav/grav/blob/1.7.40/system/src/Grav/Common/Twig/Extension/GravExtension.php#L1692-L1698",
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"source": "security-advisories@github.com"
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},
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{
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"url": "https://github.com/getgrav/grav/blob/1.7.40/system/src/Grav/Common/Utils.php#L1956-L2074",
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"source": "security-advisories@github.com"
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},
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{
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"url": "https://github.com/getgrav/grav/commit/244758d4383034fe4cd292d41e477177870b65ec",
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"source": "security-advisories@github.com"
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},
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{
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"url": "https://github.com/getgrav/grav/security/advisories/GHSA-96xv-rmwj-6p9w",
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"source": "security-advisories@github.com"
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}
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]
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} |