fkie_cve-2023-32731
Vulnerability from fkie_nvd
Published
2023-06-09 11:15
Modified
2024-11-21 08:03
Severity ?
7.4 (High) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Summary
When gRPC HTTP2 stack raised a header size exceeded error, it skipped parsing the rest of the HPACK frame. This caused any HPACK table mutations to also be skipped, resulting in a desynchronization of HPACK tables between sender and receiver. If leveraged, say, between a proxy and a backend, this could lead to requests from the proxy being interpreted as containing headers from different proxy clients - leading to an information leak that can be used for privilege escalation or data exfiltration. We recommend upgrading beyond the commit contained in  https://github.com/grpc/grpc/pull/33005 https://github.com/grpc/grpc/pull/33005
References
cve-coordination@google.comhttps://github.com/grpc/grpc/pull/32309Patch
cve-coordination@google.comhttps://github.com/grpc/grpc/pull/33005Patch
af854a3a-2127-422b-91ae-364da2661108https://github.com/grpc/grpc/pull/32309Patch
af854a3a-2127-422b-91ae-364da2661108https://github.com/grpc/grpc/pull/33005Patch
Impacted products
Vendor Product Version
grpc grpc *


To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:grpc:grpc:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "1FD89F7C-C259-4213-A259-70C505491F50",
              "versionEndExcluding": "1.55.0",
              "versionStartIncluding": "1.53.0",
              "vulnerable": true
            }
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          "negate": false,
          "operator": "OR"
        }
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "When gRPC HTTP2 stack raised a header size exceeded error, it skipped parsing the rest of the HPACK frame. This caused any HPACK table mutations to also be skipped, resulting in a desynchronization of HPACK tables between sender and receiver. If leveraged, say, between a proxy and a backend, this could lead to requests from the proxy being interpreted as containing headers from different proxy clients - leading to an information leak that can be used for privilege escalation or data exfiltration. We recommend upgrading beyond the commit contained in\u00a0 https://github.com/grpc/grpc/pull/33005 https://github.com/grpc/grpc/pull/33005 \n"
    }
  ],
  "id": "CVE-2023-32731",
  "lastModified": "2024-11-21T08:03:55.773",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.4,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H",
          "version": "3.1"
        },
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        "impactScore": 5.2,
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        "type": "Secondary"
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          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
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        "exploitabilityScore": 3.9,
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        "source": "nvd@nist.gov",
        "type": "Primary"
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  },
  "published": "2023-06-09T11:15:09.303",
  "references": [
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      "tags": [
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      "url": "https://github.com/grpc/grpc/pull/32309"
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    {
      "source": "cve-coordination@google.com",
      "tags": [
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      "url": "https://github.com/grpc/grpc/pull/33005"
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    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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      "url": "https://github.com/grpc/grpc/pull/33005"
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  "sourceIdentifier": "cve-coordination@google.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-440"
        }
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      "source": "cve-coordination@google.com",
      "type": "Secondary"
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          "lang": "en",
          "value": "NVD-CWE-Other"
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      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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