Search criteria
6 vulnerabilities found for snappy by knplabs
FKIE_CVE-2023-41330
Vulnerability from fkie_nvd - Published: 2023-09-06 18:15 - Updated: 2024-11-21 08:21
Severity ?
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
knplabs/knp-snappy is a PHP library allowing thumbnail, snapshot or PDF generation from a url or a html page.
## Issue
On March 17th the vulnerability CVE-2023-28115 was disclosed, allowing an attacker to gain remote code execution through PHAR deserialization. Version 1.4.2 added a check `if (\strpos($filename, 'phar://') === 0)` in the `prepareOutput` function to resolve this CVE, however if the user is able to control the second parameter of the `generateFromHtml()` function of Snappy, it will then be passed as the `$filename` parameter in the `prepareOutput()` function. In the original vulnerability, a file name with a `phar://` wrapper could be sent to the `fileExists()` function, equivalent to the `file_exists()` PHP function. This allowed users to trigger a deserialization on arbitrary PHAR files. To fix this issue, the string is now passed to the `strpos()` function and if it starts with `phar://`, an exception is raised. However, PHP wrappers being case insensitive, this patch can be bypassed using `PHAR://` instead of `phar://`. A successful exploitation of this vulnerability allows executing arbitrary code and accessing the underlying filesystem. The attacker must be able to upload a file and the server must be running a PHP version prior to 8. This issue has been addressed in commit `d3b742d61a` which has been included in version 1.4.3. Users are advised to upgrade. Users unable to upgrade should ensure that only trusted users may submit data to the `AbstractGenerator->generate(...)` function.
References
{
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:knplabs:snappy:*:*:*:*:*:*:*:*",
"matchCriteriaId": "C2412BC7-4738-4E4B-9382-9C967F55BEC0",
"versionEndExcluding": "1.4.3",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "knplabs/knp-snappy is a PHP library allowing thumbnail, snapshot or PDF generation from a url or a html page.\n## Issue\n\nOn March 17th the vulnerability CVE-2023-28115 was disclosed, allowing an attacker to gain remote code execution through PHAR deserialization. Version 1.4.2 added a check `if (\\strpos($filename, \u0027phar://\u0027) === 0)` in the `prepareOutput` function to resolve this CVE, however if the user is able to control the second parameter of the `generateFromHtml()` function of Snappy, it will then be passed as the `$filename` parameter in the `prepareOutput()` function. In the original vulnerability, a file name with a `phar://` wrapper could be sent to the `fileExists()` function, equivalent to the `file_exists()` PHP function. This allowed users to trigger a deserialization on arbitrary PHAR files. To fix this issue, the string is now passed to the `strpos()` function and if it starts with `phar://`, an exception is raised. However, PHP wrappers being case insensitive, this patch can be bypassed using `PHAR://` instead of `phar://`. A successful exploitation of this vulnerability allows executing arbitrary code and accessing the underlying filesystem. The attacker must be able to upload a file and the server must be running a PHP version prior to 8. This issue has been addressed in commit `d3b742d61a` which has been included in version 1.4.3. Users are advised to upgrade. Users unable to upgrade should ensure that only trusted users may submit data to the `AbstractGenerator-\u003egenerate(...)` function.\n"
},
{
"lang": "es",
"value": "knplabs/knp-snappy es una librer\u00eda PHP que permite la generaci\u00f3n de thumbnail, snapshots o PDFs desde una URL o una p\u00e1gina HTML. ## El problema que revel\u00f3 la vulnerabilidad CVE-2023-28115 el 17 de marzo, permite a un atacante obtener la ejecuci\u00f3n remota de c\u00f3digo mediante la deserializaci\u00f3n PHAR. La versi\u00f3n 1.4.2 agreg\u00f3 una verificaci\u00f3n `if (\\strpos($filename, \u0027phar://\u0027) === 0)` en la funci\u00f3n `prepareOutput` para resolver este CVE, sin embargo, si el usuario puede controlar el segundo par\u00e1metro de la funci\u00f3n `generateFromHtml()` de Snappy, luego se pasar\u00e1 como el par\u00e1metro `$filename` en la funci\u00f3n `prepareOutput()`. En la vulnerabilidad original, un nombre de archivo con un contenedor `phar://` podr\u00eda enviarse a la funci\u00f3n `fileExists()`, equivalente a la funci\u00f3n PHP `file_exists()`. Esto permiti\u00f3 a los usuarios activar una deserializaci\u00f3n en archivos PHAR arbitrarios. Para solucionar este problema, la cadena ahora se pasa a la funci\u00f3n `strpos()` y si comienza con `phar://`, se genera una excepci\u00f3n. Sin embargo, como los contenedores de PHP no distinguen entre may\u00fasculas y min\u00fasculas, este parche se puede omitir usando `PHAR://` en lugar de `phar://`. Una explotaci\u00f3n exitosa de esta vulnerabilidad permite ejecutar c\u00f3digo arbitrario y acceder al sistema de archivos subyacente. El atacante debe poder cargar un archivo y el servidor debe ejecutar una versi\u00f3n de PHP anterior a la 8. Este problema se solucion\u00f3 en el commit `d3b742d61a` que se incluy\u00f3 en la versi\u00f3n 1.4.3. Se recomienda a los usuarios que actualicen. Los usuarios que no puedan actualizar deben asegurarse de que solo los usuarios confiables puedan enviar datos a la funci\u00f3n `AbstractGenerator-\u0026gt;generate(...)`."
}
],
"id": "CVE-2023-41330",
"lastModified": "2024-11-21T08:21:05.347",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 5.9,
"source": "security-advisories@github.com",
"type": "Secondary"
},
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 5.9,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2023-09-06T18:15:09.153",
"references": [
{
"source": "security-advisories@github.com",
"tags": [
"Patch"
],
"url": "https://github.com/KnpLabs/snappy/commit/d3b742d61a68bf93866032c2c0a7f1486128b67e"
},
{
"source": "security-advisories@github.com",
"tags": [
"Exploit",
"Mitigation",
"Vendor Advisory"
],
"url": "https://github.com/KnpLabs/snappy/security/advisories/GHSA-92rv-4j2h-8mjj"
},
{
"source": "security-advisories@github.com",
"tags": [
"Exploit",
"Vendor Advisory"
],
"url": "https://github.com/KnpLabs/snappy/security/advisories/GHSA-gq6w-q6wh-jggc"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "https://github.com/KnpLabs/snappy/commit/d3b742d61a68bf93866032c2c0a7f1486128b67e"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Exploit",
"Mitigation",
"Vendor Advisory"
],
"url": "https://github.com/KnpLabs/snappy/security/advisories/GHSA-92rv-4j2h-8mjj"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Exploit",
"Vendor Advisory"
],
"url": "https://github.com/KnpLabs/snappy/security/advisories/GHSA-gq6w-q6wh-jggc"
}
],
"sourceIdentifier": "security-advisories@github.com",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-502"
}
],
"source": "security-advisories@github.com",
"type": "Secondary"
}
]
}
FKIE_CVE-2023-28115
Vulnerability from fkie_nvd - Published: 2023-03-17 22:15 - Updated: 2024-11-21 07:54
Severity ?
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
Snappy is a PHP library allowing thumbnail, snapshot or PDF generation from a url or a html page. Prior to version 1.4.2, Snappy is vulnerable to PHAR deserialization due to a lack of checking on the protocol before passing it into the `file_exists()` function. If an attacker can upload files of any type to the server he can pass in the phar:// protocol to unserialize the uploaded file and instantiate arbitrary PHP objects. This can lead to remote code execution especially when snappy is used with frameworks with documented POP chains like Laravel/Symfony vulnerable developer code. If a user can control the output file from the `generateFromHtml()` function, it will invoke deserialization. This vulnerability is capable of remote code execution if Snappy is used with frameworks or developer code with vulnerable POP chains. It has been fixed in version 1.4.2.
References
{
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:knplabs:snappy:*:*:*:*:*:*:*:*",
"matchCriteriaId": "63871084-34B8-4CD8-ACEC-3EEAE2CA2EFE",
"versionEndExcluding": "1.4.2",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Snappy is a PHP library allowing thumbnail, snapshot or PDF generation from a url or a html page. Prior to version 1.4.2, Snappy is vulnerable to PHAR deserialization due to a lack of checking on the protocol before passing it into the `file_exists()` function. If an attacker can upload files of any type to the server he can pass in the phar:// protocol to unserialize the uploaded file and instantiate arbitrary PHP objects. This can lead to remote code execution especially when snappy is used with frameworks with documented POP chains like Laravel/Symfony vulnerable developer code. If a user can control the output file from the `generateFromHtml()` function, it will invoke deserialization. This vulnerability is capable of remote code execution if Snappy is used with frameworks or developer code with vulnerable POP chains. It has been fixed in version 1.4.2."
}
],
"id": "CVE-2023-28115",
"lastModified": "2024-11-21T07:54:26.183",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 5.9,
"source": "security-advisories@github.com",
"type": "Secondary"
},
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 5.9,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2023-03-17T22:15:11.437",
"references": [
{
"source": "security-advisories@github.com",
"tags": [
"Product"
],
"url": "https://github.com/KnpLabs/snappy/blob/5126fb5b335ec929a226314d40cd8dad497c3d67/src/Knp/Snappy/AbstractGenerator.php#L670"
},
{
"source": "security-advisories@github.com",
"tags": [
"Patch"
],
"url": "https://github.com/KnpLabs/snappy/commit/1ee6360cbdbea5d09705909a150df7963a88efd6"
},
{
"source": "security-advisories@github.com",
"tags": [
"Patch"
],
"url": "https://github.com/KnpLabs/snappy/commit/b66f79334421c26d9c244427963fa2d92980b5d3"
},
{
"source": "security-advisories@github.com",
"tags": [
"Patch"
],
"url": "https://github.com/KnpLabs/snappy/pull/469"
},
{
"source": "security-advisories@github.com",
"tags": [
"Release Notes"
],
"url": "https://github.com/KnpLabs/snappy/releases/tag/v1.4.2"
},
{
"source": "security-advisories@github.com",
"tags": [
"Exploit",
"Vendor Advisory"
],
"url": "https://github.com/KnpLabs/snappy/security/advisories/GHSA-gq6w-q6wh-jggc"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Product"
],
"url": "https://github.com/KnpLabs/snappy/blob/5126fb5b335ec929a226314d40cd8dad497c3d67/src/Knp/Snappy/AbstractGenerator.php#L670"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "https://github.com/KnpLabs/snappy/commit/1ee6360cbdbea5d09705909a150df7963a88efd6"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "https://github.com/KnpLabs/snappy/commit/b66f79334421c26d9c244427963fa2d92980b5d3"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "https://github.com/KnpLabs/snappy/pull/469"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Release Notes"
],
"url": "https://github.com/KnpLabs/snappy/releases/tag/v1.4.2"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Exploit",
"Vendor Advisory"
],
"url": "https://github.com/KnpLabs/snappy/security/advisories/GHSA-gq6w-q6wh-jggc"
}
],
"sourceIdentifier": "security-advisories@github.com",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-502"
}
],
"source": "security-advisories@github.com",
"type": "Secondary"
}
]
}
CVE-2023-41330 (GCVE-0-2023-41330)
Vulnerability from cvelistv5 – Published: 2023-09-06 17:33 – Updated: 2024-09-30 15:54
VLAI?
Title
Unsafe deserialization in knplabs/knp-snappy
Summary
knplabs/knp-snappy is a PHP library allowing thumbnail, snapshot or PDF generation from a url or a html page.
## Issue
On March 17th the vulnerability CVE-2023-28115 was disclosed, allowing an attacker to gain remote code execution through PHAR deserialization. Version 1.4.2 added a check `if (\strpos($filename, 'phar://') === 0)` in the `prepareOutput` function to resolve this CVE, however if the user is able to control the second parameter of the `generateFromHtml()` function of Snappy, it will then be passed as the `$filename` parameter in the `prepareOutput()` function. In the original vulnerability, a file name with a `phar://` wrapper could be sent to the `fileExists()` function, equivalent to the `file_exists()` PHP function. This allowed users to trigger a deserialization on arbitrary PHAR files. To fix this issue, the string is now passed to the `strpos()` function and if it starts with `phar://`, an exception is raised. However, PHP wrappers being case insensitive, this patch can be bypassed using `PHAR://` instead of `phar://`. A successful exploitation of this vulnerability allows executing arbitrary code and accessing the underlying filesystem. The attacker must be able to upload a file and the server must be running a PHP version prior to 8. This issue has been addressed in commit `d3b742d61a` which has been included in version 1.4.3. Users are advised to upgrade. Users unable to upgrade should ensure that only trusted users may submit data to the `AbstractGenerator->generate(...)` function.
Severity ?
9.8 (Critical)
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-02T19:01:33.613Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"name": "https://github.com/KnpLabs/snappy/security/advisories/GHSA-92rv-4j2h-8mjj",
"tags": [
"x_refsource_CONFIRM",
"x_transferred"
],
"url": "https://github.com/KnpLabs/snappy/security/advisories/GHSA-92rv-4j2h-8mjj"
},
{
"name": "https://github.com/KnpLabs/snappy/security/advisories/GHSA-gq6w-q6wh-jggc",
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://github.com/KnpLabs/snappy/security/advisories/GHSA-gq6w-q6wh-jggc"
},
{
"name": "https://github.com/KnpLabs/snappy/commit/d3b742d61a68bf93866032c2c0a7f1486128b67e",
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://github.com/KnpLabs/snappy/commit/d3b742d61a68bf93866032c2c0a7f1486128b67e"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2023-41330",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-09-30T15:54:05.463352Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2024-09-30T15:54:18.428Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "snappy",
"vendor": "KnpLabs",
"versions": [
{
"status": "affected",
"version": "\u003c 1.4.3"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "knplabs/knp-snappy is a PHP library allowing thumbnail, snapshot or PDF generation from a url or a html page.\n## Issue\n\nOn March 17th the vulnerability CVE-2023-28115 was disclosed, allowing an attacker to gain remote code execution through PHAR deserialization. Version 1.4.2 added a check `if (\\strpos($filename, \u0027phar://\u0027) === 0)` in the `prepareOutput` function to resolve this CVE, however if the user is able to control the second parameter of the `generateFromHtml()` function of Snappy, it will then be passed as the `$filename` parameter in the `prepareOutput()` function. In the original vulnerability, a file name with a `phar://` wrapper could be sent to the `fileExists()` function, equivalent to the `file_exists()` PHP function. This allowed users to trigger a deserialization on arbitrary PHAR files. To fix this issue, the string is now passed to the `strpos()` function and if it starts with `phar://`, an exception is raised. However, PHP wrappers being case insensitive, this patch can be bypassed using `PHAR://` instead of `phar://`. A successful exploitation of this vulnerability allows executing arbitrary code and accessing the underlying filesystem. The attacker must be able to upload a file and the server must be running a PHP version prior to 8. This issue has been addressed in commit `d3b742d61a` which has been included in version 1.4.3. Users are advised to upgrade. Users unable to upgrade should ensure that only trusted users may submit data to the `AbstractGenerator-\u003egenerate(...)` function.\n"
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-502",
"description": "CWE-502: Deserialization of Untrusted Data",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2023-09-06T17:33:21.098Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/KnpLabs/snappy/security/advisories/GHSA-92rv-4j2h-8mjj",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/KnpLabs/snappy/security/advisories/GHSA-92rv-4j2h-8mjj"
},
{
"name": "https://github.com/KnpLabs/snappy/security/advisories/GHSA-gq6w-q6wh-jggc",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/KnpLabs/snappy/security/advisories/GHSA-gq6w-q6wh-jggc"
},
{
"name": "https://github.com/KnpLabs/snappy/commit/d3b742d61a68bf93866032c2c0a7f1486128b67e",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/KnpLabs/snappy/commit/d3b742d61a68bf93866032c2c0a7f1486128b67e"
}
],
"source": {
"advisory": "GHSA-92rv-4j2h-8mjj",
"discovery": "UNKNOWN"
},
"title": "Unsafe deserialization in knplabs/knp-snappy"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2023-41330",
"datePublished": "2023-09-06T17:33:21.098Z",
"dateReserved": "2023-08-28T16:56:43.366Z",
"dateUpdated": "2024-09-30T15:54:18.428Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
CVE-2023-28115 (GCVE-0-2023-28115)
Vulnerability from cvelistv5 – Published: 2023-03-17 21:15 – Updated: 2025-02-25 14:53
VLAI?
Title
Snappy vulnerable to PHAR deserialization, allowing remote code execution
Summary
Snappy is a PHP library allowing thumbnail, snapshot or PDF generation from a url or a html page. Prior to version 1.4.2, Snappy is vulnerable to PHAR deserialization due to a lack of checking on the protocol before passing it into the `file_exists()` function. If an attacker can upload files of any type to the server he can pass in the phar:// protocol to unserialize the uploaded file and instantiate arbitrary PHP objects. This can lead to remote code execution especially when snappy is used with frameworks with documented POP chains like Laravel/Symfony vulnerable developer code. If a user can control the output file from the `generateFromHtml()` function, it will invoke deserialization. This vulnerability is capable of remote code execution if Snappy is used with frameworks or developer code with vulnerable POP chains. It has been fixed in version 1.4.2.
Severity ?
9.8 (Critical)
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-02T12:30:24.135Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"name": "https://github.com/KnpLabs/snappy/security/advisories/GHSA-gq6w-q6wh-jggc",
"tags": [
"x_refsource_CONFIRM",
"x_transferred"
],
"url": "https://github.com/KnpLabs/snappy/security/advisories/GHSA-gq6w-q6wh-jggc"
},
{
"name": "https://github.com/KnpLabs/snappy/pull/469",
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://github.com/KnpLabs/snappy/pull/469"
},
{
"name": "https://github.com/KnpLabs/snappy/commit/1ee6360cbdbea5d09705909a150df7963a88efd6",
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://github.com/KnpLabs/snappy/commit/1ee6360cbdbea5d09705909a150df7963a88efd6"
},
{
"name": "https://github.com/KnpLabs/snappy/commit/b66f79334421c26d9c244427963fa2d92980b5d3",
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://github.com/KnpLabs/snappy/commit/b66f79334421c26d9c244427963fa2d92980b5d3"
},
{
"name": "https://github.com/KnpLabs/snappy/blob/5126fb5b335ec929a226314d40cd8dad497c3d67/src/Knp/Snappy/AbstractGenerator.php#L670",
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://github.com/KnpLabs/snappy/blob/5126fb5b335ec929a226314d40cd8dad497c3d67/src/Knp/Snappy/AbstractGenerator.php#L670"
},
{
"name": "https://github.com/KnpLabs/snappy/releases/tag/v1.4.2",
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://github.com/KnpLabs/snappy/releases/tag/v1.4.2"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2023-28115",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-02-25T14:31:03.179492Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2025-02-25T14:53:10.142Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "snappy",
"vendor": "KnpLabs",
"versions": [
{
"status": "affected",
"version": "\u003c 1.4.2"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Snappy is a PHP library allowing thumbnail, snapshot or PDF generation from a url or a html page. Prior to version 1.4.2, Snappy is vulnerable to PHAR deserialization due to a lack of checking on the protocol before passing it into the `file_exists()` function. If an attacker can upload files of any type to the server he can pass in the phar:// protocol to unserialize the uploaded file and instantiate arbitrary PHP objects. This can lead to remote code execution especially when snappy is used with frameworks with documented POP chains like Laravel/Symfony vulnerable developer code. If a user can control the output file from the `generateFromHtml()` function, it will invoke deserialization. This vulnerability is capable of remote code execution if Snappy is used with frameworks or developer code with vulnerable POP chains. It has been fixed in version 1.4.2."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-502",
"description": "CWE-502: Deserialization of Untrusted Data",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2023-03-17T21:15:25.113Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/KnpLabs/snappy/security/advisories/GHSA-gq6w-q6wh-jggc",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/KnpLabs/snappy/security/advisories/GHSA-gq6w-q6wh-jggc"
},
{
"name": "https://github.com/KnpLabs/snappy/pull/469",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/KnpLabs/snappy/pull/469"
},
{
"name": "https://github.com/KnpLabs/snappy/commit/1ee6360cbdbea5d09705909a150df7963a88efd6",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/KnpLabs/snappy/commit/1ee6360cbdbea5d09705909a150df7963a88efd6"
},
{
"name": "https://github.com/KnpLabs/snappy/commit/b66f79334421c26d9c244427963fa2d92980b5d3",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/KnpLabs/snappy/commit/b66f79334421c26d9c244427963fa2d92980b5d3"
},
{
"name": "https://github.com/KnpLabs/snappy/blob/5126fb5b335ec929a226314d40cd8dad497c3d67/src/Knp/Snappy/AbstractGenerator.php#L670",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/KnpLabs/snappy/blob/5126fb5b335ec929a226314d40cd8dad497c3d67/src/Knp/Snappy/AbstractGenerator.php#L670"
},
{
"name": "https://github.com/KnpLabs/snappy/releases/tag/v1.4.2",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/KnpLabs/snappy/releases/tag/v1.4.2"
}
],
"source": {
"advisory": "GHSA-gq6w-q6wh-jggc",
"discovery": "UNKNOWN"
},
"title": "Snappy vulnerable to PHAR deserialization, allowing remote code execution"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2023-28115",
"datePublished": "2023-03-17T21:15:25.113Z",
"dateReserved": "2023-03-10T18:34:29.228Z",
"dateUpdated": "2025-02-25T14:53:10.142Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
CVE-2023-41330 (GCVE-0-2023-41330)
Vulnerability from nvd – Published: 2023-09-06 17:33 – Updated: 2024-09-30 15:54
VLAI?
Title
Unsafe deserialization in knplabs/knp-snappy
Summary
knplabs/knp-snappy is a PHP library allowing thumbnail, snapshot or PDF generation from a url or a html page.
## Issue
On March 17th the vulnerability CVE-2023-28115 was disclosed, allowing an attacker to gain remote code execution through PHAR deserialization. Version 1.4.2 added a check `if (\strpos($filename, 'phar://') === 0)` in the `prepareOutput` function to resolve this CVE, however if the user is able to control the second parameter of the `generateFromHtml()` function of Snappy, it will then be passed as the `$filename` parameter in the `prepareOutput()` function. In the original vulnerability, a file name with a `phar://` wrapper could be sent to the `fileExists()` function, equivalent to the `file_exists()` PHP function. This allowed users to trigger a deserialization on arbitrary PHAR files. To fix this issue, the string is now passed to the `strpos()` function and if it starts with `phar://`, an exception is raised. However, PHP wrappers being case insensitive, this patch can be bypassed using `PHAR://` instead of `phar://`. A successful exploitation of this vulnerability allows executing arbitrary code and accessing the underlying filesystem. The attacker must be able to upload a file and the server must be running a PHP version prior to 8. This issue has been addressed in commit `d3b742d61a` which has been included in version 1.4.3. Users are advised to upgrade. Users unable to upgrade should ensure that only trusted users may submit data to the `AbstractGenerator->generate(...)` function.
Severity ?
9.8 (Critical)
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-02T19:01:33.613Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"name": "https://github.com/KnpLabs/snappy/security/advisories/GHSA-92rv-4j2h-8mjj",
"tags": [
"x_refsource_CONFIRM",
"x_transferred"
],
"url": "https://github.com/KnpLabs/snappy/security/advisories/GHSA-92rv-4j2h-8mjj"
},
{
"name": "https://github.com/KnpLabs/snappy/security/advisories/GHSA-gq6w-q6wh-jggc",
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://github.com/KnpLabs/snappy/security/advisories/GHSA-gq6w-q6wh-jggc"
},
{
"name": "https://github.com/KnpLabs/snappy/commit/d3b742d61a68bf93866032c2c0a7f1486128b67e",
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://github.com/KnpLabs/snappy/commit/d3b742d61a68bf93866032c2c0a7f1486128b67e"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2023-41330",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-09-30T15:54:05.463352Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2024-09-30T15:54:18.428Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "snappy",
"vendor": "KnpLabs",
"versions": [
{
"status": "affected",
"version": "\u003c 1.4.3"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "knplabs/knp-snappy is a PHP library allowing thumbnail, snapshot or PDF generation from a url or a html page.\n## Issue\n\nOn March 17th the vulnerability CVE-2023-28115 was disclosed, allowing an attacker to gain remote code execution through PHAR deserialization. Version 1.4.2 added a check `if (\\strpos($filename, \u0027phar://\u0027) === 0)` in the `prepareOutput` function to resolve this CVE, however if the user is able to control the second parameter of the `generateFromHtml()` function of Snappy, it will then be passed as the `$filename` parameter in the `prepareOutput()` function. In the original vulnerability, a file name with a `phar://` wrapper could be sent to the `fileExists()` function, equivalent to the `file_exists()` PHP function. This allowed users to trigger a deserialization on arbitrary PHAR files. To fix this issue, the string is now passed to the `strpos()` function and if it starts with `phar://`, an exception is raised. However, PHP wrappers being case insensitive, this patch can be bypassed using `PHAR://` instead of `phar://`. A successful exploitation of this vulnerability allows executing arbitrary code and accessing the underlying filesystem. The attacker must be able to upload a file and the server must be running a PHP version prior to 8. This issue has been addressed in commit `d3b742d61a` which has been included in version 1.4.3. Users are advised to upgrade. Users unable to upgrade should ensure that only trusted users may submit data to the `AbstractGenerator-\u003egenerate(...)` function.\n"
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-502",
"description": "CWE-502: Deserialization of Untrusted Data",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2023-09-06T17:33:21.098Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/KnpLabs/snappy/security/advisories/GHSA-92rv-4j2h-8mjj",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/KnpLabs/snappy/security/advisories/GHSA-92rv-4j2h-8mjj"
},
{
"name": "https://github.com/KnpLabs/snappy/security/advisories/GHSA-gq6w-q6wh-jggc",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/KnpLabs/snappy/security/advisories/GHSA-gq6w-q6wh-jggc"
},
{
"name": "https://github.com/KnpLabs/snappy/commit/d3b742d61a68bf93866032c2c0a7f1486128b67e",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/KnpLabs/snappy/commit/d3b742d61a68bf93866032c2c0a7f1486128b67e"
}
],
"source": {
"advisory": "GHSA-92rv-4j2h-8mjj",
"discovery": "UNKNOWN"
},
"title": "Unsafe deserialization in knplabs/knp-snappy"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2023-41330",
"datePublished": "2023-09-06T17:33:21.098Z",
"dateReserved": "2023-08-28T16:56:43.366Z",
"dateUpdated": "2024-09-30T15:54:18.428Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
CVE-2023-28115 (GCVE-0-2023-28115)
Vulnerability from nvd – Published: 2023-03-17 21:15 – Updated: 2025-02-25 14:53
VLAI?
Title
Snappy vulnerable to PHAR deserialization, allowing remote code execution
Summary
Snappy is a PHP library allowing thumbnail, snapshot or PDF generation from a url or a html page. Prior to version 1.4.2, Snappy is vulnerable to PHAR deserialization due to a lack of checking on the protocol before passing it into the `file_exists()` function. If an attacker can upload files of any type to the server he can pass in the phar:// protocol to unserialize the uploaded file and instantiate arbitrary PHP objects. This can lead to remote code execution especially when snappy is used with frameworks with documented POP chains like Laravel/Symfony vulnerable developer code. If a user can control the output file from the `generateFromHtml()` function, it will invoke deserialization. This vulnerability is capable of remote code execution if Snappy is used with frameworks or developer code with vulnerable POP chains. It has been fixed in version 1.4.2.
Severity ?
9.8 (Critical)
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-02T12:30:24.135Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"name": "https://github.com/KnpLabs/snappy/security/advisories/GHSA-gq6w-q6wh-jggc",
"tags": [
"x_refsource_CONFIRM",
"x_transferred"
],
"url": "https://github.com/KnpLabs/snappy/security/advisories/GHSA-gq6w-q6wh-jggc"
},
{
"name": "https://github.com/KnpLabs/snappy/pull/469",
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://github.com/KnpLabs/snappy/pull/469"
},
{
"name": "https://github.com/KnpLabs/snappy/commit/1ee6360cbdbea5d09705909a150df7963a88efd6",
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://github.com/KnpLabs/snappy/commit/1ee6360cbdbea5d09705909a150df7963a88efd6"
},
{
"name": "https://github.com/KnpLabs/snappy/commit/b66f79334421c26d9c244427963fa2d92980b5d3",
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://github.com/KnpLabs/snappy/commit/b66f79334421c26d9c244427963fa2d92980b5d3"
},
{
"name": "https://github.com/KnpLabs/snappy/blob/5126fb5b335ec929a226314d40cd8dad497c3d67/src/Knp/Snappy/AbstractGenerator.php#L670",
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://github.com/KnpLabs/snappy/blob/5126fb5b335ec929a226314d40cd8dad497c3d67/src/Knp/Snappy/AbstractGenerator.php#L670"
},
{
"name": "https://github.com/KnpLabs/snappy/releases/tag/v1.4.2",
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://github.com/KnpLabs/snappy/releases/tag/v1.4.2"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2023-28115",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-02-25T14:31:03.179492Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2025-02-25T14:53:10.142Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "snappy",
"vendor": "KnpLabs",
"versions": [
{
"status": "affected",
"version": "\u003c 1.4.2"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Snappy is a PHP library allowing thumbnail, snapshot or PDF generation from a url or a html page. Prior to version 1.4.2, Snappy is vulnerable to PHAR deserialization due to a lack of checking on the protocol before passing it into the `file_exists()` function. If an attacker can upload files of any type to the server he can pass in the phar:// protocol to unserialize the uploaded file and instantiate arbitrary PHP objects. This can lead to remote code execution especially when snappy is used with frameworks with documented POP chains like Laravel/Symfony vulnerable developer code. If a user can control the output file from the `generateFromHtml()` function, it will invoke deserialization. This vulnerability is capable of remote code execution if Snappy is used with frameworks or developer code with vulnerable POP chains. It has been fixed in version 1.4.2."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-502",
"description": "CWE-502: Deserialization of Untrusted Data",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2023-03-17T21:15:25.113Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/KnpLabs/snappy/security/advisories/GHSA-gq6w-q6wh-jggc",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/KnpLabs/snappy/security/advisories/GHSA-gq6w-q6wh-jggc"
},
{
"name": "https://github.com/KnpLabs/snappy/pull/469",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/KnpLabs/snappy/pull/469"
},
{
"name": "https://github.com/KnpLabs/snappy/commit/1ee6360cbdbea5d09705909a150df7963a88efd6",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/KnpLabs/snappy/commit/1ee6360cbdbea5d09705909a150df7963a88efd6"
},
{
"name": "https://github.com/KnpLabs/snappy/commit/b66f79334421c26d9c244427963fa2d92980b5d3",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/KnpLabs/snappy/commit/b66f79334421c26d9c244427963fa2d92980b5d3"
},
{
"name": "https://github.com/KnpLabs/snappy/blob/5126fb5b335ec929a226314d40cd8dad497c3d67/src/Knp/Snappy/AbstractGenerator.php#L670",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/KnpLabs/snappy/blob/5126fb5b335ec929a226314d40cd8dad497c3d67/src/Knp/Snappy/AbstractGenerator.php#L670"
},
{
"name": "https://github.com/KnpLabs/snappy/releases/tag/v1.4.2",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/KnpLabs/snappy/releases/tag/v1.4.2"
}
],
"source": {
"advisory": "GHSA-gq6w-q6wh-jggc",
"discovery": "UNKNOWN"
},
"title": "Snappy vulnerable to PHAR deserialization, allowing remote code execution"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2023-28115",
"datePublished": "2023-03-17T21:15:25.113Z",
"dateReserved": "2023-03-10T18:34:29.228Z",
"dateUpdated": "2025-02-25T14:53:10.142Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}