CVE-2023-32731
Vulnerability from cvelistv5
Published
2023-06-09 10:54
Modified
2024-09-26 19:12
Severity ?
EPSS score ?
Summary
Information leak in gRPC
References
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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\u0026nbsp;\u003ca target=\"_blank\" rel=\"nofollow\" href=\"https://github.com/grpc/grpc/pull/33005\"\u003ehttps://github.com/grpc/grpc/pull/33005\u003c/a\u003e\u003cbr\u003e" } ], "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" } ], "impacts": [ { "capecId": "CAPEC-220", "descriptions": [ { "lang": "en", "value": "CAPEC-220 Client-Server Protocol Manipulation" } ] } ], "metrics": [ { "cvssV3_1": { "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" }, "format": "CVSS", "scenarios": [ { "lang": "en", "value": "GENERAL" } ] } ], "problemTypes": [ { "descriptions": [ { "cweId": "CWE-440", "description": "CWE-440: Expected Behavior Violation", "lang": "en", "type": "CWE" } ] } ], "providerMetadata": { "dateUpdated": "2023-06-13T15:26:24.636Z", "orgId": "14ed7db2-1595-443d-9d34-6215bf890778", "shortName": "Google" }, "references": [ { "url": "https://github.com/grpc/grpc/pull/32309" }, { "url": "https://github.com/grpc/grpc/pull/33005" } ], "solutions": [ { "lang": "en", "supportingMedia": [ { "base64": false, "type": "text/html", "value": "Fixes available in these releases:\u003cbr\u003e- 1.52.2: \u003ca target=\"_blank\" rel=\"nofollow\" href=\"https://github.com/grpc/grpc/releases/tag/v1.52.2\"\u003ehttps://github.com/grpc/grpc/releases/tag/v1.52.2\u003c/a\u003e\u003cbr\u003e- 1.53.1: \u003ca target=\"_blank\" rel=\"nofollow\" href=\"https://github.com/grpc/grpc/releases/tag/v1.53.1\"\u003ehttps://github.com/grpc/grpc/releases/tag/v1.53.1\u003c/a\u003e\u003cbr\u003e- 1.54.2: \u003ca target=\"_blank\" rel=\"nofollow\" href=\"https://github.com/grpc/grpc/releases/tag/v1.54.2\"\u003ehttps://github.com/grpc/grpc/releases/tag/v1.54.2\u003c/a\u003e\u003cbr\u003e- 1.55.0: \u003ca target=\"_blank\" rel=\"nofollow\" href=\"https://github.com/grpc/grpc/releases/tag/v1.55.0\"\u003ehttps://github.com/grpc/grpc/releases/tag/v1.55.0\u003c/a\u003e\u003cbr\u003e\u003cbr\u003e" } ], "value": "Fixes available in these releases:\n- 1.52.2: https://github.com/grpc/grpc/releases/tag/v1.52.2 https://github.com/grpc/grpc/releases/tag/v1.52.2 \n- 1.53.1: https://github.com/grpc/grpc/releases/tag/v1.53.1 https://github.com/grpc/grpc/releases/tag/v1.53.1 \n- 1.54.2: https://github.com/grpc/grpc/releases/tag/v1.54.2 https://github.com/grpc/grpc/releases/tag/v1.54.2 \n- 1.55.0: https://github.com/grpc/grpc/releases/tag/v1.55.0 https://github.com/grpc/grpc/releases/tag/v1.55.0 \n\n" } ], "source": { "discovery": "UNKNOWN" }, "title": "Information leak in gRPC", "x_generator": { "engine": "Vulnogram 0.1.0-dev" } } }, "cveMetadata": { "assignerOrgId": "14ed7db2-1595-443d-9d34-6215bf890778", "assignerShortName": "Google", "cveId": "CVE-2023-32731", "datePublished": "2023-06-09T10:54:08.472Z", "dateReserved": "2023-05-12T08:58:54.033Z", "dateUpdated": "2024-09-26T19:12:06.245Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1", "meta": { "nvd": "{\"cve\":{\"id\":\"CVE-2023-32731\",\"sourceIdentifier\":\"cve-coordination@google.com\",\"published\":\"2023-06-09T11:15:09.303\",\"lastModified\":\"2023-06-15T22:18:49.193\",\"vulnStatus\":\"Analyzed\",\"descriptions\":[{\"lang\":\"en\",\"value\":\"When gRPC HTTP2 stack raised a header size exceeded error, it skipped parsing the rest of the HPACK frame. 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- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.