CVE-2021-29454 (GCVE-0-2021-29454)
Vulnerability from cvelistv5
Published
2022-01-10 00:00
Modified
2025-04-23 19:14
Severity ?
8.1 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
CWE
  • CWE-74 - Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
Summary
Smarty is a template engine for PHP, facilitating the separation of presentation (HTML/CSS) from application logic. Prior to versions 3.1.42 and 4.0.2, template authors could run arbitrary PHP code by crafting a malicious math string. If a math string was passed through as user provided data to the math function, external users could run arbitrary PHP code by crafting a malicious math string. Users should upgrade to version 3.1.42 or 4.0.2 to receive a patch.
References
security-advisories@github.com https://github.com/smarty-php/smarty/commit/215d81a9fa3cd63d82fb3ab56ecaf97cf1e7db71 Patch, Third Party Advisory
security-advisories@github.com https://github.com/smarty-php/smarty/releases/tag/v3.1.42 Release Notes, Third Party Advisory
security-advisories@github.com https://github.com/smarty-php/smarty/releases/tag/v4.0.2 Release Notes, Third Party Advisory
security-advisories@github.com https://github.com/smarty-php/smarty/security/advisories/GHSA-29gp-2c3m-3j6m Third Party Advisory
security-advisories@github.com https://lists.debian.org/debian-lts-announce/2022/05/msg00005.html Mailing List, Third Party Advisory
security-advisories@github.com https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BRAJVDRGCIY5UZ2PQHKDTT7RMKG6WJQQ/
security-advisories@github.com https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L777JIBIWJV34HS7LXPIDWASG7TT4LNI/
security-advisories@github.com https://packagist.org/packages/smarty/smarty Product, Third Party Advisory
security-advisories@github.com https://security.gentoo.org/glsa/202209-09 Third Party Advisory
security-advisories@github.com https://www.debian.org/security/2022/dsa-5151 Third Party Advisory
security-advisories@github.com https://www.smarty.net/docs/en/language.function.math.tpl Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 https://github.com/smarty-php/smarty/commit/215d81a9fa3cd63d82fb3ab56ecaf97cf1e7db71 Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://github.com/smarty-php/smarty/releases/tag/v3.1.42 Release Notes, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://github.com/smarty-php/smarty/releases/tag/v4.0.2 Release Notes, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://github.com/smarty-php/smarty/security/advisories/GHSA-29gp-2c3m-3j6m Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://lists.debian.org/debian-lts-announce/2022/05/msg00005.html Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BRAJVDRGCIY5UZ2PQHKDTT7RMKG6WJQQ/
af854a3a-2127-422b-91ae-364da2661108 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L777JIBIWJV34HS7LXPIDWASG7TT4LNI/
af854a3a-2127-422b-91ae-364da2661108 https://packagist.org/packages/smarty/smarty Product, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://security.gentoo.org/glsa/202209-09 Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://www.debian.org/security/2022/dsa-5151 Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://www.smarty.net/docs/en/language.function.math.tpl Vendor Advisory
Impacted products
Vendor Product Version
smarty-php smarty Version: < 3.1.42
Version: >= 4.0.0, < 4.0.2
 Create a notification for this product.
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    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://github.com/smarty-php/smarty/security/advisories/GHSA-29gp-2c3m-3j6m\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://github.com/smarty-php/smarty/commit/215d81a9fa3cd63d82fb3ab56ecaf97cf1e7db71\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://github.com/smarty-php/smarty/releases/tag/v3.1.42\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://github.com/smarty-php/smarty/releases/tag/v4.0.2\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://packagist.org/packages/smarty/smarty\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://www.smarty.net/docs/en/language.function.math.tpl\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://lists.debian.org/debian-lts-announce/2022/05/msg00005.html\", \"name\": \"[debian-lts-announce] 20220505 [SECURITY] [DLA 2995-1] smarty3 security update\", \"tags\": [\"mailing-list\", \"x_transferred\"]}, {\"url\": \"https://www.debian.org/security/2022/dsa-5151\", \"name\": \"DSA-5151\", \"tags\": [\"vendor-advisory\", \"x_transferred\"]}, {\"url\": \"https://security.gentoo.org/glsa/202209-09\", \"name\": \"GLSA-202209-09\", \"tags\": [\"vendor-advisory\", \"x_transferred\"]}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L777JIBIWJV34HS7LXPIDWASG7TT4LNI/\", \"name\": \"FEDORA-2022-52154efd61\", \"tags\": [\"vendor-advisory\", \"x_transferred\"]}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BRAJVDRGCIY5UZ2PQHKDTT7RMKG6WJQQ/\", \"name\": \"FEDORA-2022-d5fc9dcdd7\", \"tags\": [\"vendor-advisory\", \"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-03T22:02:51.996Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2021-29454\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-04-23T15:57:13.410401Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-04-23T15:57:15.621Z\"}}], \"cna\": {\"title\": \"Sandbox Escape by math function in smarty\", \"source\": {\"advisory\": \"GHSA-29gp-2c3m-3j6m\", \"discovery\": \"UNKNOWN\"}, \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 8.1, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"REQUIRED\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"NONE\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"HIGH\"}}], \"affected\": [{\"vendor\": \"smarty-php\", \"product\": \"smarty\", \"versions\": [{\"status\": \"affected\", \"version\": \"\u003c 3.1.42\"}, {\"status\": \"affected\", \"version\": \"\u003e= 4.0.0, \u003c 4.0.2\"}]}], \"references\": [{\"url\": \"https://github.com/smarty-php/smarty/security/advisories/GHSA-29gp-2c3m-3j6m\"}, {\"url\": \"https://github.com/smarty-php/smarty/commit/215d81a9fa3cd63d82fb3ab56ecaf97cf1e7db71\"}, {\"url\": \"https://github.com/smarty-php/smarty/releases/tag/v3.1.42\"}, {\"url\": \"https://github.com/smarty-php/smarty/releases/tag/v4.0.2\"}, {\"url\": \"https://packagist.org/packages/smarty/smarty\"}, {\"url\": \"https://www.smarty.net/docs/en/language.function.math.tpl\"}, {\"url\": \"https://lists.debian.org/debian-lts-announce/2022/05/msg00005.html\", \"name\": \"[debian-lts-announce] 20220505 [SECURITY] [DLA 2995-1] smarty3 security update\", \"tags\": [\"mailing-list\"]}, {\"url\": \"https://www.debian.org/security/2022/dsa-5151\", \"name\": \"DSA-5151\", \"tags\": [\"vendor-advisory\"]}, {\"url\": \"https://security.gentoo.org/glsa/202209-09\", \"name\": \"GLSA-202209-09\", \"tags\": [\"vendor-advisory\"]}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L777JIBIWJV34HS7LXPIDWASG7TT4LNI/\", \"name\": \"FEDORA-2022-52154efd61\", \"tags\": [\"vendor-advisory\"]}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BRAJVDRGCIY5UZ2PQHKDTT7RMKG6WJQQ/\", \"name\": \"FEDORA-2022-d5fc9dcdd7\", \"tags\": [\"vendor-advisory\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"Smarty is a template engine for PHP, facilitating the separation of presentation (HTML/CSS) from application logic. Prior to versions 3.1.42 and 4.0.2, template authors could run arbitrary PHP code by crafting a malicious math string. If a math string was passed through as user provided data to the math function, external users could run arbitrary PHP code by crafting a malicious math string. Users should upgrade to version 3.1.42 or 4.0.2 to receive a patch.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-74\", \"description\": \"CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component (\u0027Injection\u0027)\"}]}], \"providerMetadata\": {\"orgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"shortName\": \"GitHub_M\", \"dateUpdated\": \"2022-11-14T00:00:00.000Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2021-29454\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-04-23T19:14:05.629Z\", \"dateReserved\": \"2021-03-30T00:00:00.000Z\", \"assignerOrgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"datePublished\": \"2022-01-10T00:00:00.000Z\", \"assignerShortName\": \"GitHub_M\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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