gsd-2021-20220
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
A flaw was found in Undertow. A regression in the fix for CVE-2020-10687 was found. HTTP request smuggling related to CVE-2017-2666 is possible against HTTP/1.x and HTTP/2 due to permitting invalid characters in an HTTP request. This flaw allows an attacker to poison a web-cache, perform an XSS attack, or obtain sensitive information from request other than their own. The highest threat from this vulnerability is to data confidentiality and integrity.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2021-20220",
"description": "A flaw was found in Undertow. A regression in the fix for CVE-2020-10687 was found. HTTP request smuggling related to CVE-2017-2666 is possible against HTTP/1.x and HTTP/2 due to permitting invalid characters in an HTTP request. This flaw allows an attacker to poison a web-cache, perform an XSS attack, or obtain sensitive information from request other than their own. The highest threat from this vulnerability is to data confidentiality and integrity.",
"id": "GSD-2021-20220",
"references": [
"https://access.redhat.com/errata/RHSA-2021:2755",
"https://access.redhat.com/errata/RHSA-2021:2210",
"https://access.redhat.com/errata/RHSA-2021:0974",
"https://access.redhat.com/errata/RHSA-2021:0885",
"https://access.redhat.com/errata/RHSA-2021:0874",
"https://access.redhat.com/errata/RHSA-2021:0873",
"https://access.redhat.com/errata/RHSA-2021:0872"
]
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"aliases": [
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],
"details": "A flaw was found in Undertow. A regression in the fix for CVE-2020-10687 was found. HTTP request smuggling related to CVE-2017-2666 is possible against HTTP/1.x and HTTP/2 due to permitting invalid characters in an HTTP request. This flaw allows an attacker to poison a web-cache, perform an XSS attack, or obtain sensitive information from request other than their own. The highest threat from this vulnerability is to data confidentiality and integrity.",
"id": "GSD-2021-20220",
"modified": "2023-12-13T01:23:12.682943Z",
"schema_version": "1.4.0"
}
},
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"affects": {
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{
"product": {
"product_data": [
{
"product_name": "undertow",
"version": {
"version_data": [
{
"version_value": "Undertow 2.2.0.Final, Undertow 2.1.6.Final, Undertow 2.0.34.Final"
}
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}
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"name": "https://bugzilla.redhat.com/show_bug.cgi?id=1923133",
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"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1923133"
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{
"name": "https://security.netapp.com/advisory/ntap-20220210-0013/",
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"gitlab.com": {
"advisories": [
{
"affected_range": "(,2.0.34),[2.1.0,2.1.6)",
"affected_versions": "All versions before 2.0.34, all versions starting from 2.1.0 before 2.1.6",
"cvss_v2": "AV:N/AC:M/Au:N/C:P/I:P/A:N",
"cvss_v3": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N",
"cwe_ids": [
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"CWE-444",
"CWE-937"
],
"date": "2022-02-22",
"description": "A regression in the fix for CVE-2020-10687 was found. HTTP request smuggling related to CVE-2017-2666 is possible against `HTTP/1.x` and `HTTP/2` due to permitting invalid characters in an HTTP request.",
"fixed_versions": [
"2.0.34.Final",
"2.1.6.Final"
],
"identifier": "CVE-2021-20220",
"identifiers": [
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],
"not_impacted": "All versions starting from 2.0.34 before 2.1.0, all versions starting from 2.1.6",
"package_slug": "maven/io.undertow/undertow-core",
"pubdate": "2021-02-23",
"solution": "Upgrade to versions 2.0.34.Final, 2.1.6.Final or above.",
"title": "Inconsistent Interpretation of HTTP Requests (HTTP Request Smuggling)",
"urls": [
"https://nvd.nist.gov/vuln/detail/CVE-2021-20220",
"https://bugzilla.redhat.com/show_bug.cgi?id=1923133"
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},
"impact": {
"baseMetricV2": {
"acInsufInfo": false,
"cvssV2": {
"accessComplexity": "MEDIUM",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "NONE",
"baseScore": 5.8,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "PARTIAL",
"vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:N",
"version": "2.0"
},
"exploitabilityScore": 8.6,
"impactScore": 4.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"severity": "MEDIUM",
"userInteractionRequired": false
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"attackVector": "NETWORK",
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"baseScore": 4.8,
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"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N",
"version": "3.1"
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"exploitabilityScore": 2.2,
"impactScore": 2.5
}
},
"lastModifiedDate": "2022-02-22T14:53Z",
"publishedDate": "2021-02-23T18:15Z"
}
}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- 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.