WID-SEC-W-2023-3218
Vulnerability from csaf_certbund - Published: 2021-07-11 22:00 - Updated: 2024-04-25 22:00Es existiert eine Schwachstelle in PuTTY. Die Schwachstelle besteht darin, dass mit dem Aufbau der SSH-Verbindung fortgefahren wird, auch wenn nie eine substantielle Authentifizierungsantwort gesendet wurde. Ein entfernter, anonymer Angreifer kann diese Schwachstelle ausnutzen, um Sicherheitsvorkehrungen zu umgehen. Zur erfolgreichen Ausnutzung ist eine Benutzeraktion erforderlich.
| Product | Identifier | Version | Remediation |
|---|---|---|---|
|
Debian Linux
Debian
|
cpe:/o:debian:debian_linux:-
|
— | |
|
Open Source Arch Linux
Open Source
|
cpe:/o:archlinux:archlinux:-
|
— |
| Product | Identifier | Version | Remediation |
|---|---|---|---|
|
Open Source PuTTY <=0.75
Open Source / PuTTY
|
<=0.75 |
{
"document": {
"aggregate_severity": {
"text": "mittel"
},
"category": "csaf_base",
"csaf_version": "2.0",
"distribution": {
"tlp": {
"label": "WHITE",
"url": "https://www.first.org/tlp/"
}
},
"lang": "de-DE",
"notes": [
{
"category": "legal_disclaimer",
"text": "Das BSI ist als Anbieter f\u00fcr die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch daf\u00fcr verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgf\u00e4ltig im Einzelfall zu pr\u00fcfen."
},
{
"category": "description",
"text": "PuTTY ist ein freier, Open Source Terminal Emulator der als Client f\u00fcr SSH, Telnet, rlogin und die Serielle Konsole dient.",
"title": "Produktbeschreibung"
},
{
"category": "summary",
"text": "Ein entfernter, anonymer Angreifer kann eine Schwachstelle in PuTTY ausnutzen, um Sicherheitsvorkehrungen zu umgehen.",
"title": "Angriff"
},
{
"category": "general",
"text": "- Linux\n- Sonstiges\n- UNIX\n- Windows",
"title": "Betroffene Betriebssysteme"
}
],
"publisher": {
"category": "other",
"contact_details": "csaf-provider@cert-bund.de",
"name": "Bundesamt f\u00fcr Sicherheit in der Informationstechnik",
"namespace": "https://www.bsi.bund.de"
},
"references": [
{
"category": "self",
"summary": "WID-SEC-W-2023-3218 - CSAF Version",
"url": "https://wid.cert-bund.de/.well-known/csaf/white/2021/wid-sec-w-2023-3218.json"
},
{
"category": "self",
"summary": "WID-SEC-2023-3218 - Portal Version",
"url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2023-3218"
},
{
"category": "external",
"summary": "Twitter: CIRCL LU Post vom 2021-07-11",
"url": "https://twitter.com/circl_lu/status/1413969468989100033"
},
{
"category": "external",
"summary": "Arch Linux Security Advisory ASA-202107-37 vom 2021-07-20",
"url": "https://security.archlinux.org/ASA-202107-37"
},
{
"category": "external",
"summary": "Debian Security Advisory DSA-5588 vom 2023-12-24",
"url": "https://lists.debian.org/debian-security-announce/2023/msg00285.html"
},
{
"category": "external",
"summary": "Debian Security Advisory DSA-5588 vom 2023-12-24",
"url": "https://www.debian.org/security/2023/dsa-5588"
},
{
"category": "external",
"summary": "Debian Security Advisory DLA-3794 vom 2024-04-25",
"url": "https://lists.debian.org/debian-lts-announce/2024/04/msg00016.html"
}
],
"source_lang": "en-US",
"title": "PuTTY: Schwachstelle erm\u00f6glicht Umgehen von Sicherheitsvorkehrungen",
"tracking": {
"current_release_date": "2024-04-25T22:00:00.000+00:00",
"generator": {
"date": "2024-08-15T18:03:10.395+00:00",
"engine": {
"name": "BSI-WID",
"version": "1.3.5"
}
},
"id": "WID-SEC-W-2023-3218",
"initial_release_date": "2021-07-11T22:00:00.000+00:00",
"revision_history": [
{
"date": "2021-07-11T22:00:00.000+00:00",
"number": "1",
"summary": "Initiale Fassung"
},
{
"date": "2021-07-20T22:00:00.000+00:00",
"number": "2",
"summary": "Neue Updates von Arch Linux aufgenommen"
},
{
"date": "2023-12-26T23:00:00.000+00:00",
"number": "3",
"summary": "Neue Updates von Debian aufgenommen"
},
{
"date": "2024-04-25T22:00:00.000+00:00",
"number": "4",
"summary": "Neue Updates von Debian aufgenommen"
}
],
"status": "final",
"version": "4"
}
},
"product_tree": {
"branches": [
{
"branches": [
{
"category": "product_name",
"name": "Debian Linux",
"product": {
"name": "Debian Linux",
"product_id": "2951",
"product_identification_helper": {
"cpe": "cpe:/o:debian:debian_linux:-"
}
}
}
],
"category": "vendor",
"name": "Debian"
},
{
"branches": [
{
"category": "product_name",
"name": "Open Source Arch Linux",
"product": {
"name": "Open Source Arch Linux",
"product_id": "T013312",
"product_identification_helper": {
"cpe": "cpe:/o:archlinux:archlinux:-"
}
}
},
{
"branches": [
{
"category": "product_version_range",
"name": "\u003c=0.75",
"product": {
"name": "Open Source PuTTY \u003c=0.75",
"product_id": "T019434"
}
}
],
"category": "product_name",
"name": "PuTTY"
}
],
"category": "vendor",
"name": "Open Source"
}
]
},
"vulnerabilities": [
{
"cve": "CVE-2021-36367",
"notes": [
{
"category": "description",
"text": "Es existiert eine Schwachstelle in PuTTY. Die Schwachstelle besteht darin, dass mit dem Aufbau der SSH-Verbindung fortgefahren wird, auch wenn nie eine substantielle Authentifizierungsantwort gesendet wurde. Ein entfernter, anonymer Angreifer kann diese Schwachstelle ausnutzen, um Sicherheitsvorkehrungen zu umgehen. Zur erfolgreichen Ausnutzung ist eine Benutzeraktion erforderlich."
}
],
"product_status": {
"known_affected": [
"2951",
"T013312"
],
"last_affected": [
"T019434"
]
},
"release_date": "2021-07-11T22:00:00.000+00:00",
"title": "CVE-2021-36367"
}
]
}
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