151 lines
6.8 KiB
JSON
151 lines
6.8 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-55663",
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"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"state": "PUBLISHED",
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"assignerShortName": "GitHub_M",
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"dateReserved": "2026-06-17T00:05:03.777Z",
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"datePublished": "2026-08-25T18:15:16.059Z",
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"dateUpdated": "2026-08-25T18:55:59.044Z"
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},
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"containers": {
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"cna": {
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"title": "mediasoup: SCTP state cookie lacks cryptographic authentication, enabling unauthorized association establishment (RFC 9260 violation)",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-345",
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"lang": "en",
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"description": "CWE-345: Insufficient Verification of Data Authenticity",
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"type": "CWE"
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}
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]
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}
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],
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"metrics": [
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{
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"cvssV3_1": {
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"attackComplexity": "HIGH",
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"attackVector": "NETWORK",
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"availabilityImpact": "LOW",
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"baseScore": 5.6,
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"baseSeverity": "MEDIUM",
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"confidentialityImpact": "LOW",
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"integrityImpact": "LOW",
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"privilegesRequired": "NONE",
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"scope": "UNCHANGED",
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"userInteraction": "NONE",
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"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L",
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"version": "3.1"
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}
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}
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],
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"references": [
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{
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"name": "https://github.com/versatica/mediasoup/security/advisories/GHSA-p7x2-g5cq-fhmq",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/versatica/mediasoup/security/advisories/GHSA-p7x2-g5cq-fhmq"
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},
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{
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"name": "https://github.com/versatica/mediasoup/pull/1829",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/versatica/mediasoup/pull/1829"
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},
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{
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"name": "https://github.com/versatica/mediasoup/commit/9c1a90a8f9206b965e727d134846fb42df4980a7",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/versatica/mediasoup/commit/9c1a90a8f9206b965e727d134846fb42df4980a7"
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},
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{
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"name": "https://github.com/versatica/mediasoup/releases/tag/3.20.6",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/versatica/mediasoup/releases/tag/3.20.6"
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}
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],
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"affected": [
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{
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"vendor": "versatica",
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"product": "mediasoup",
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"versions": [
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{
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"version": ">= 3.20.0, < 3.20.6",
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"status": "affected"
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},
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{
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"version": ">= 0.22.0, < 0.22.5",
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"status": "affected"
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}
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]
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}
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],
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"providerMetadata": {
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"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"shortName": "GitHub_M",
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"dateUpdated": "2026-08-25T18:15:16.059Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "mediasoup is a WebRTC video conferencing system. From version 3.20.0 until 3.20.6 for the npm package and from 0.22.0 until 0.22.5 for the Rust crate, mediasoup's built-in SCTP stack authenticates state cookies using only the hardcoded msworker and 0xAD81 magic values instead of a per-instance secret and HMAC, contrary to RFC 9260 Section 5.1.3. The cookie structure and validation in worker/include/RTC/SCTP/association/StateCookie.hpp and worker/src/RTC/SCTP/association/StateCookie.cpp allow an on-path attacker targeting PlainTransport or PipeTransport with SCTP enabled and without DTLS protection to forge a COOKIE-ECHO whose packet verification tag matches the attacker-controlled localVerificationTag. The forged cookie passes StateCookie::IsMediasoupStateCookie() and Association::HandleReceivedCookieEchoChunk(), establishes an unauthorized SCTP association, and permits DataChannel message injection as a trusted peer. WebRtcTransport is not affected because its SCTP runs inside DTLS. This issue is fixed in npm version 3.20.6 and Rust crate version 0.22.5."
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}
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],
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"source": {
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"advisory": "GHSA-p7x2-g5cq-fhmq",
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"discovery": "UNKNOWN"
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}
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},
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"adp": [
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{
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"references": [
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{
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"url": "https://github.com/versatica/mediasoup/security/advisories/GHSA-p7x2-g5cq-fhmq",
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"tags": [
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"exploit"
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]
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}
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],
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"timestamp": "2026-08-25T18:55:43.763697Z",
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"id": "CVE-2026-55663",
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"options": [
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{
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"Exploitation": "poc"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "partial"
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}
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],
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"role": "CISA Coordinator",
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"version": "2.0.3"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-08-25T18:55:59.044Z"
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}
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}
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]
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}
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} |