Vulnerability-Lookup

WID-SEC-W-2025-0355

Vulnerability from csaf_certbund - Published: 2025-02-11 23:00 - Updated: 2025-04-13 22:00

Summary

hostapd: Schwachstelle ermöglicht Umgehen von Sicherheitsvorkehrungen

Notes

Das BSI ist als Anbieter für die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch dafür verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgfältig im Einzelfall zu prüfen.

Produktbeschreibung

Hostapd (Host Access Point Daemon) ist eine Software, mit der eine Netzwerkkarte als Access Point und Authentifizierungsserver fungieren kann.

Angriff

Ein entfernter, anonymer Angreifer kann eine Schwachstelle in hostapd ausnutzen, um Sicherheitsvorkehrungen zu umgehen.

Betroffene Betriebssysteme

- Linux - Sonstiges - UNIX

JSON

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{
  "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": "Hostapd (Host Access Point Daemon) ist eine Software, mit der eine Netzwerkkarte als Access Point und Authentifizierungsserver fungieren kann.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein entfernter, anonymer Angreifer kann eine Schwachstelle in hostapd ausnutzen, um Sicherheitsvorkehrungen zu umgehen.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- Linux\n- Sonstiges\n- UNIX",
        "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-2025-0355 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2025/wid-sec-w-2025-0355.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2025-0355 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2025-0355"
      },
      {
        "category": "external",
        "summary": "Red Hat Bugtracker #2345113 vom 2025-02-11",
        "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2345113"
      },
      {
        "category": "external",
        "summary": "Debian Security Advisory DLA-4123 vom 2025-04-12",
        "url": "https://lists.debian.org/debian-lts-announce/2025/04/msg00019.html"
      }
    ],
    "source_lang": "en-US",
    "title": "hostapd: Schwachstelle erm\u00f6glicht Umgehen von Sicherheitsvorkehrungen",
    "tracking": {
      "current_release_date": "2025-04-13T22:00:00.000+00:00",
      "generator": {
        "date": "2025-04-14T08:16:34.263+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.3.12"
        }
      },
      "id": "WID-SEC-W-2025-0355",
      "initial_release_date": "2025-02-11T23:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2025-02-11T23:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        },
        {
          "date": "2025-04-13T22:00:00.000+00:00",
          "number": "2",
          "summary": "Neue Updates von Debian aufgenommen"
        }
      ],
      "status": "final",
      "version": "2"
    }
  },
  "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": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c2.11",
                "product": {
                  "name": "Open Source hostapd \u003c2.11",
                  "product_id": "T041146"
                }
              },
              {
                "category": "product_version",
                "name": "2.11",
                "product": {
                  "name": "Open Source hostapd 2.11",
                  "product_id": "T041146-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:w1.f1:hostapd:2.11"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "hostapd"
          }
        ],
        "category": "vendor",
        "name": "Open Source"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2022-37660",
      "product_status": {
        "known_affected": [
          "2951",
          "T041146"
        ]
      },
      "release_date": "2025-02-11T23:00:00.000+00:00",
      "title": "CVE-2022-37660"
    }
  ]
}

CVE-2022-37660 (GCVE-0-2022-37660)

Vulnerability from cvelistv5 – Published: 2025-02-11 00:00 – Updated: 2025-11-03 19:27

Summary

In hostapd 2.10 and earlier, the PKEX code remains active even after a successful PKEX association. An attacker that successfully bootstrapped public keys with another entity using PKEX in the past, will be able to subvert a future bootstrapping by passively observing public keys, re-using the encrypting element Qi and subtracting it from the captured message M (X = M - Qi). This will result in the public ephemeral key X; the only element required to subvert the PKEX association.

Severity ?

6.5 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

CWE

Assigner

mitre

References

URL

Tags

	https://w1.fi/cgit/hostap/commit/?id=15af83cf1846…
	https://link.springer.com/article/10.1007/s10207-…

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "NONE",
              "baseScore": 6.5,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "LOW",
              "integrityImpact": "LOW",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2022-37660",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-02-13T14:18:13.521966Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-323",
                "description": "CWE-323 Reusing a Nonce, Key Pair in Encryption",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-02-13T14:18:19.149Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2025-11-03T19:27:21.731Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "https://lists.debian.org/debian-lts-announce/2025/04/msg00019.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In hostapd 2.10 and earlier, the PKEX code remains active even after a successful PKEX association. An attacker that successfully bootstrapped public keys with another entity using PKEX in the past, will be able to subvert a future bootstrapping by passively observing public keys, re-using the encrypting element Qi and subtracting it from the captured message M (X = M - Qi). This will result in the public ephemeral key X; the only element required to subvert the PKEX association."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-02-11T22:25:35.931Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "url": "https://w1.fi/cgit/hostap/commit/?id=15af83cf1846870873a011ed4d714732f01cd2e4"
        },
        {
          "url": "https://link.springer.com/article/10.1007/s10207-025-00988-3"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2022-37660",
    "datePublished": "2025-02-11T00:00:00.000Z",
    "dateReserved": "2022-08-08T00:00:00.000Z",
    "dateUpdated": "2025-11-03T19:27:21.731Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

WID-SEC-W-2025-0355

CVE-2022-37660 (GCVE-0-2022-37660)

Tags

Sightings

Nomenclature