GHSA-2288-8H3R-CQGG高危已审查

CoreWCF: SPNEGO SecurityContextToken proof key wrapped without confidentiality

OSV 1.4.0 · github-reviewed · 修改于 2026-06-20 04:47

发布时间

2026-06-20 04:47

GitHub 审查时间

2026-06-20 04:47

NVD 发布时间

—

源文件

advisories/github-reviewed/2026/06/GHSA-2288-8h3r-cqgg/GHSA-2288-8h3r-cqgg.json

公告说明

Impact

When the proof key recovered from the RSTR can be observed by a party that is not the legitimate client, that party can impersonate the authenticated Windows principal for the lifetime of the SCT (default ~10 hours) and decrypt or forge any subsequent WS‑SecureConversation traffic that uses keys derived from the SCT.

Preconditions

Using security mode TransportWithMessageCredential with client credential type Windows, along with session establishment (which triggers use of WS-SecureConversation).

Patches

Fixed in CoreWCF v1.9.1

Workarounds

Ensure communication is protected by SSL/TLS to prevent capturing of SCT negotiation handshake.

受影响的软件包

NuGet

CoreWCF.Primitives

ECOSYSTEM

标识信息

别名 / CVE

CVE-2026-54784

CWE

CWE-311CWE-523

软件生态

NuGet

扩展资料

暂无扩展资料。

CVSS 评分

CVSS_V3

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

原始 OSV JSON

{
  "id": "GHSA-2288-8h3r-cqgg",
  "aliases": [
    "CVE-2026-54784"
  ],
  "details": "### Impact\nWhen the proof key recovered from the RSTR can be observed by a party that is not the legitimate client, that party can impersonate the authenticated Windows principal for the lifetime of the SCT (default ~10 hours) and decrypt or forge any subsequent WS‑SecureConversation traffic that uses keys derived from the SCT.\n\n#### Preconditions\nUsing security mode TransportWithMessageCredential with client credential type Windows, along with session establishment (which triggers use of WS-SecureConversation).\n\n### Patches\nFixed in CoreWCF v1.9.1\n\n### Workarounds\nEnsure communication is protected by SSL/TLS to prevent capturing of SCT negotiation handshake.",
  "summary": "CoreWCF: SPNEGO SecurityContextToken proof key wrapped without confidentiality",
  "affected": [
    {
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "1.9.0"
            },
            {
              "fixed": "1.9.1"
            }
          ]
        }
      ],
      "package": {
        "name": "CoreWCF.Primitives",
        "ecosystem": "NuGet"
      }
    }
  ],
  "modified": "2026-06-19T20:47:17Z",
  "severity": [
    {
      "type": "CVSS_V3",
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N"
    }
  ],
  "published": "2026-06-19T20:47:17Z",
  "references": [
    {
      "url": "https://github.com/CoreWCF/CoreWCF/security/advisories/GHSA-2288-8h3r-cqgg",
      "type": "WEB"
    },
    {
      "url": "https://github.com/CoreWCF/CoreWCF",
      "type": "PACKAGE"
    }
  ],
  "schema_version": "1.4.0",
  "database_specific": {
    "cwe_ids": [
      "CWE-311",
      "CWE-523"
    ],
    "severity": "HIGH",
    "github_reviewed": true,
    "nvd_published_at": null,
    "github_reviewed_at": "2026-06-19T20:47:17Z"
  }
}