github - ghsa-8q7x-wx54-w95j

GHSA-8Q7X-WX54-W95J

Vulnerability from github – Published: 2022-05-24 17:40 – Updated: 2022-05-24 17:40

Details

The function DecWPA2KeyData() in the Realtek RTL8195A Wi-Fi Module prior to versions released in April 2020 (up to and excluding 2.08) does not validate the size parameter for an internal function, rt_arc4_crypt_veneer() or _AES_UnWRAP_veneer(), resulting in a stack buffer overflow which can be exploited for remote code execution or denial of service. An attacker can impersonate an Access Point and attack a vulnerable Wi-Fi client, by injecting a crafted packet into the WPA2 handshake. The attacker needs to know the network's PSK in order to exploit this.

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{
  "affected": [],
  "aliases": [
    "CVE-2020-25854"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-02-03T17:15:00Z",
    "severity": "HIGH"
  },
  "details": "The function DecWPA2KeyData() in the Realtek RTL8195A Wi-Fi Module prior to versions released in April 2020 (up to and excluding 2.08) does not validate the size parameter for an internal function, rt_arc4_crypt_veneer() or _AES_UnWRAP_veneer(), resulting in a stack buffer overflow which can be exploited for remote code execution or denial of service. An attacker can impersonate an Access Point and attack a vulnerable Wi-Fi client, by injecting a crafted packet into the WPA2 handshake. The attacker needs to know the network\u0027s PSK in order to exploit this.",
  "id": "GHSA-8q7x-wx54-w95j",
  "modified": "2022-05-24T17:40:54Z",
  "published": "2022-05-24T17:40:54Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-25854"
    },
    {
      "type": "WEB",
      "url": "https://www.vdoo.com/blog/realtek-rtl8195a-vulnerabilities-discovered"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2020-25854 (GCVE-0-2020-25854)

Vulnerability from cvelistv5 – Published: 2021-02-03 16:49 – Updated: 2024-08-04 15:49

Summary

Severity ?

No CVSS data available.

CWE

CWE-121 - Stack buffer overflow (CWE-121)

Assigner

VDOO

References

URL

Tags

https://www.vdoo.com/blog/realtek-rtl8195a-vulner…

x_refsource_CONFIRM

Impacted products

	Vendor	Product	Version
	n/a	Realtek RTL8195A Wi-Fi Module	Affected: Versions before 2020-04-21 (up to and excluding 2.08)

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JSON

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        "providerMetadata": {
          "dateUpdated": "2024-08-04T15:49:05.429Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        "references": [
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              "x_transferred"
            ],
            "url": "https://www.vdoo.com/blog/realtek-rtl8195a-vulnerabilities-discovered/"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Realtek RTL8195A Wi-Fi Module",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "Versions before 2020-04-21 (up to and excluding 2.08)"
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      ],
      "descriptions": [
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        }
      ],
      "problemTypes": [
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          "descriptions": [
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        },
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    "dateReserved": "2020-09-23T00:00:00",
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}

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

GHSA-8Q7X-WX54-W95J

CVE-2020-25854 (GCVE-0-2020-25854)

Tags

Sightings

Nomenclature