gsd-2021-32066
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
An issue was discovered in Ruby through 2.6.7, 2.7.x through 2.7.3, and 3.x through 3.0.1. Net::IMAP does not raise an exception when StartTLS fails with an an unknown response, which might allow man-in-the-middle attackers to bypass the TLS protections by leveraging a network position between the client and the registry to block the StartTLS command, aka a "StartTLS stripping attack."
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2021-32066",
"description": "An issue was discovered in Ruby through 2.6.7, 2.7.x through 2.7.3, and 3.x through 3.0.1. Net::IMAP does not raise an exception when StartTLS fails with an an unknown response, which might allow man-in-the-middle attackers to bypass the TLS protections by leveraging a network position between the client and the registry to block the StartTLS command, aka a \"StartTLS stripping attack.\"",
"id": "GSD-2021-32066",
"references": [
"https://www.suse.com/security/cve/CVE-2021-32066.html",
"https://www.debian.org/security/2022/dsa-5066",
"https://access.redhat.com/errata/RHSA-2022:0708",
"https://access.redhat.com/errata/RHSA-2022:0672",
"https://access.redhat.com/errata/RHSA-2022:0582",
"https://access.redhat.com/errata/RHSA-2022:0581",
"https://access.redhat.com/errata/RHSA-2022:0544",
"https://access.redhat.com/errata/RHSA-2022:0543",
"https://access.redhat.com/errata/RHSA-2021:3982",
"https://access.redhat.com/errata/RHSA-2021:3559",
"https://access.redhat.com/errata/RHSA-2021:3020",
"https://ubuntu.com/security/CVE-2021-32066",
"https://advisories.mageia.org/CVE-2021-32066.html",
"https://security.archlinux.org/CVE-2021-32066",
"https://linux.oracle.com/cve/CVE-2021-32066.html"
]
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"aliases": [
"CVE-2021-32066"
],
"details": "An issue was discovered in Ruby through 2.6.7, 2.7.x through 2.7.3, and 3.x through 3.0.1. Net::IMAP does not raise an exception when StartTLS fails with an an unknown response, which might allow man-in-the-middle attackers to bypass the TLS protections by leveraging a network position between the client and the registry to block the StartTLS command, aka a \"StartTLS stripping attack.\"",
"id": "GSD-2021-32066",
"modified": "2023-12-13T01:23:08.959048Z",
"schema_version": "1.4.0"
}
},
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"affects": {
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}
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"references": {
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"name": "https://hackerone.com/reports/1178562",
"refsource": "MISC",
"url": "https://hackerone.com/reports/1178562"
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{
"name": "[debian-lts-announce] 20211013 [SECURITY] [DLA 2780-1] ruby2.3 security update",
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"url": "https://lists.debian.org/debian-lts-announce/2021/10/msg00009.html"
},
{
"name": "https://www.oracle.com/security-alerts/cpuapr2022.html",
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"url": "https://www.oracle.com/security-alerts/cpuapr2022.html"
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{
"name": "https://security.netapp.com/advisory/ntap-20210902-0004/",
"refsource": "CONFIRM",
"url": "https://security.netapp.com/advisory/ntap-20210902-0004/"
},
{
"name": "https://www.ruby-lang.org/en/news/2021/07/07/starttls-stripping-in-net-imap/",
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"url": "https://www.ruby-lang.org/en/news/2021/07/07/starttls-stripping-in-net-imap/"
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{
"name": "https://github.com/ruby/ruby/commit/a21a3b7d23704a01d34bd79d09dc37897e00922a",
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"url": "https://github.com/ruby/ruby/commit/a21a3b7d23704a01d34bd79d09dc37897e00922a"
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{
"name": "[debian-lts-announce] 20230430 [SECURITY] [DLA 3408-1] jruby security update",
"refsource": "MLIST",
"url": "https://lists.debian.org/debian-lts-announce/2023/04/msg00033.html"
},
{
"name": "GLSA-202401-27",
"refsource": "GENTOO",
"url": "https://security.gentoo.org/glsa/202401-27"
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}
},
"nvd.nist.gov": {
"cve": {
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"value": "An issue was discovered in Ruby through 2.6.7, 2.7.x through 2.7.3, and 3.x through 3.0.1. Net::IMAP does not raise an exception when StartTLS fails with an an unknown response, which might allow man-in-the-middle attackers to bypass the TLS protections by leveraging a network position between the client and the registry to block the StartTLS command, aka a \"StartTLS stripping attack.\""
},
{
"lang": "es",
"value": "Se ha detectado un problema en Ruby versiones hasta 2.6.7, versiones 2.7.x hasta 2.7.3, y versiones 3.x hasta 3.0.1. Net::IMAP no lanza una excepci\u00f3n cuando StartTLS falla con una respuesta desconocida, lo que podr\u00eda permitir a atacantes tipo man-in-the-middle omitir las protecciones TLS, al aprovechar una posici\u00f3n de red entre el cliente y el registro para bloquear el comando StartTLS, tambi\u00e9n se conoce como \"StartTLS stripping attack\""
}
],
"id": "CVE-2021-32066",
"lastModified": "2024-01-24T05:15:10.040",
"metrics": {
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"baseSeverity": "MEDIUM",
"cvssData": {
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"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"
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"obtainAllPrivilege": false,
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"published": "2021-08-01T19:15:07.697",
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}
}
}
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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.