gsd-2021-21707
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
In PHP versions 7.3.x below 7.3.33, 7.4.x below 7.4.26 and 8.0.x below 8.0.13, certain XML parsing functions, like simplexml_load_file(), URL-decode the filename passed to them. If that filename contains URL-encoded NUL character, this may cause the function to interpret this as the end of the filename, thus interpreting the filename differently from what the user intended, which may lead it to reading a different file than intended.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2021-21707",
"description": "In PHP versions 7.3.x below 7.3.33, 7.4.x below 7.4.26 and 8.0.x below 8.0.13, certain XML parsing functions, like simplexml_load_file(), URL-decode the filename passed to them. If that filename contains URL-encoded NUL character, this may cause the function to interpret this as the end of the filename, thus interpreting the filename differently from what the user intended, which may lead it to reading a different file than intended.",
"id": "GSD-2021-21707",
"references": [
"https://www.suse.com/security/cve/CVE-2021-21707.html",
"https://www.debian.org/security/2022/dsa-5082",
"https://ubuntu.com/security/CVE-2021-21707",
"https://advisories.mageia.org/CVE-2021-21707.html",
"https://security.archlinux.org/CVE-2021-21707",
"https://access.redhat.com/errata/RHSA-2022:5491",
"https://access.redhat.com/errata/RHSA-2022:7628"
]
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"aliases": [
"CVE-2021-21707"
],
"details": "In PHP versions 7.3.x below 7.3.33, 7.4.x below 7.4.26 and 8.0.x below 8.0.13, certain XML parsing functions, like simplexml_load_file(), URL-decode the filename passed to them. If that filename contains URL-encoded NUL character, this may cause the function to interpret this as the end of the filename, thus interpreting the filename differently from what the user intended, which may lead it to reading a different file than intended.",
"id": "GSD-2021-21707",
"modified": "2023-12-13T01:23:10.925838Z",
"schema_version": "1.4.0"
}
},
"namespaces": {
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"ASSIGNER": "security@php.net",
"DATE_PUBLIC": "2021-11-15T15:31:00.000Z",
"ID": "CVE-2021-21707",
"STATE": "PUBLIC",
"TITLE": "Special characters break path parsing in XML functions"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "PHP",
"version": {
"version_data": [
{
"version_affected": "\u003c",
"version_name": "7.3.x",
"version_value": "7.3.33"
},
{
"version_affected": "\u003c",
"version_name": "7.4.x",
"version_value": "7.4.26"
},
{
"version_affected": "\u003c",
"version_name": "8.0.X",
"version_value": "8.0.13"
}
]
}
}
]
},
"vendor_name": "PHP Group"
}
]
}
},
"credit": [
{
"lang": "eng",
"value": "Reported by rawataman6525 at gmail dot com"
}
],
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
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{
"lang": "eng",
"value": "In PHP versions 7.3.x below 7.3.33, 7.4.x below 7.4.26 and 8.0.x below 8.0.13, certain XML parsing functions, like simplexml_load_file(), URL-decode the filename passed to them. If that filename contains URL-encoded NUL character, this may cause the function to interpret this as the end of the filename, thus interpreting the filename differently from what the user intended, which may lead it to reading a different file than intended."
}
]
},
"generator": {
"engine": "Vulnogram 0.0.9"
},
"impact": {
"cvss": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
"version": "3.1"
}
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "CWE-159 Failure to Sanitize Special Element"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://bugs.php.net/bug.php?id=79971",
"refsource": "MISC",
"url": "https://bugs.php.net/bug.php?id=79971"
},
{
"name": "https://security.netapp.com/advisory/ntap-20211223-0005/",
"refsource": "CONFIRM",
"url": "https://security.netapp.com/advisory/ntap-20211223-0005/"
},
{
"name": "DSA-5082",
"refsource": "DEBIAN",
"url": "https://www.debian.org/security/2022/dsa-5082"
},
{
"name": "https://www.tenable.com/security/tns-2022-09",
"refsource": "CONFIRM",
"url": "https://www.tenable.com/security/tns-2022-09"
},
{
"name": "[debian-lts-announce] 20221215 [SECURITY] [DLA 3243-1] php7.3 security update",
"refsource": "MLIST",
"url": "https://lists.debian.org/debian-lts-announce/2022/12/msg00030.html"
}
]
},
"source": {
"advisory": "https://bugs.php.net/bug.php?id=79971",
"defect": [
"https://bugs.php.net/bug.php?id=79971"
],
"discovery": "EXTERNAL"
}
},
"nvd.nist.gov": {
"configurations": {
"CVE_data_version": "4.0",
"nodes": [
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"children": [],
"cpe_match": [
{
"cpe23Uri": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*",
"cpe_name": [],
"versionEndExcluding": "8.0.13",
"versionStartIncluding": "8.0.0",
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*",
"cpe_name": [],
"versionEndExcluding": "7.4.26",
"versionStartIncluding": "7.4.0",
"vulnerable": true
},
{
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"cpe_name": [],
"versionEndExcluding": "7.3.33",
"versionStartIncluding": "7.3.0",
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}
],
"operator": "OR"
},
{
"children": [],
"cpe_match": [
{
"cpe23Uri": "cpe:2.3:a:netapp:clustered_data_ontap:-:*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
}
],
"operator": "OR"
},
{
"children": [],
"cpe_match": [
{
"cpe23Uri": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
}
],
"operator": "OR"
},
{
"children": [],
"cpe_match": [
{
"cpe23Uri": "cpe:2.3:a:tenable:tenable.sc:*:*:*:*:*:*:*:*",
"cpe_name": [],
"versionEndExcluding": "5.21.0",
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"operator": "OR"
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},
"cve": {
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"ID": "CVE-2021-21707"
},
"data_format": "MITRE",
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"description": {
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"value": "In PHP versions 7.3.x below 7.3.33, 7.4.x below 7.4.26 and 8.0.x below 8.0.13, certain XML parsing functions, like simplexml_load_file(), URL-decode the filename passed to them. If that filename contains URL-encoded NUL character, this may cause the function to interpret this as the end of the filename, thus interpreting the filename differently from what the user intended, which may lead it to reading a different file than intended."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
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"value": "NVD-CWE-Other"
}
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]
},
"references": {
"reference_data": [
{
"name": "https://bugs.php.net/bug.php?id=79971",
"refsource": "MISC",
"tags": [
"Exploit",
"Issue Tracking",
"Patch",
"Release Notes",
"Vendor Advisory"
],
"url": "https://bugs.php.net/bug.php?id=79971"
},
{
"name": "https://security.netapp.com/advisory/ntap-20211223-0005/",
"refsource": "CONFIRM",
"tags": [
"Third Party Advisory"
],
"url": "https://security.netapp.com/advisory/ntap-20211223-0005/"
},
{
"name": "DSA-5082",
"refsource": "DEBIAN",
"tags": [
"Third Party Advisory"
],
"url": "https://www.debian.org/security/2022/dsa-5082"
},
{
"name": "https://www.tenable.com/security/tns-2022-09",
"refsource": "CONFIRM",
"tags": [
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"url": "https://www.tenable.com/security/tns-2022-09"
},
{
"name": "[debian-lts-announce] 20221215 [SECURITY] [DLA 3243-1] php7.3 security update",
"refsource": "MLIST",
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"Mailing List"
],
"url": "https://lists.debian.org/debian-lts-announce/2022/12/msg00030.html"
}
]
}
},
"impact": {
"baseMetricV2": {
"acInsufInfo": false,
"cvssV2": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "NONE",
"baseScore": 5.0,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "NONE",
"vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
"version": "2.0"
},
"exploitabilityScore": 10.0,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"severity": "MEDIUM",
"userInteractionRequired": false
},
"baseMetricV3": {
"cvssV3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 1.4
}
},
"lastModifiedDate": "2023-02-16T03:07Z",
"publishedDate": "2021-11-29T07:15Z"
}
}
}
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- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.