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111 lines
4.8 KiB
JSON
111 lines
4.8 KiB
JSON
{
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"CVE_data_meta": {
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"ASSIGNER": "security-advisories@github.com",
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"ID": "CVE-2022-39251",
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"STATE": "PUBLIC",
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"TITLE": "Matrix Javascript SDK vulnerable to Olm/Megolm protocol confusion"
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},
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"affects": {
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"vendor": {
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"vendor_data": [
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{
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"product": {
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"product_data": [
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{
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"product_name": "matrix-js-sdk",
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"version": {
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"version_data": [
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{
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"version_value": "< 19.7.0"
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}
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]
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}
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}
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]
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},
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"vendor_name": "matrix-org"
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}
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]
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}
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},
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"data_format": "MITRE",
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"data_type": "CVE",
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"data_version": "4.0",
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"description": {
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"description_data": [
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{
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"lang": "eng",
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"value": "Matrix Javascript SDK is the Matrix Client-Server SDK for JavaScript. Prior to version 19.7.0, an attacker cooperating with a malicious homeserver can construct messages that legitimately appear to have come from another person, without any indication such as a grey shield. Additionally, a sophisticated attacker cooperating with a malicious homeserver could employ this vulnerability to perform a targeted attack in order to send fake to-device messages appearing to originate from another user. This can allow, for example, to inject the key backup secret during a self-verification, to make a targeted device start using a malicious key backup spoofed by the homeserver. These attacks are possible due to a protocol confusion vulnerability that accepts to-device messages encrypted with Megolm instead of Olm. Starting with version 19.7.0, matrix-js-sdk has been modified to only accept Olm-encrypted to-device messages. Out of caution, several other checks have been audited or added. This attack requires coordination between a malicious home server and an attacker, so those who trust their home servers do not need a workaround."
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}
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]
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},
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"impact": {
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"cvss": {
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"attackComplexity": "LOW",
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"attackVector": "NETWORK",
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"availabilityImpact": "NONE",
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"baseScore": 8.6,
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"baseSeverity": "HIGH",
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"confidentialityImpact": "NONE",
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"integrityImpact": "HIGH",
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"privilegesRequired": "NONE",
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"scope": "CHANGED",
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"userInteraction": "NONE",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N",
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"version": "3.1"
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}
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},
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"problemtype": {
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"problemtype_data": [
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{
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"description": [
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{
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"lang": "eng",
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"value": "CWE-322: Key Exchange without Entity Authentication"
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}
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]
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},
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{
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"description": [
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{
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"lang": "eng",
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"value": "CWE-287: Improper Authentication"
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}
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]
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}
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]
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},
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"references": {
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"reference_data": [
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{
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"name": "https://github.com/matrix-org/matrix-js-sdk/commit/a587d7c36026fe1fcf93dfff63588abee359be76",
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"refsource": "MISC",
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"url": "https://github.com/matrix-org/matrix-js-sdk/commit/a587d7c36026fe1fcf93dfff63588abee359be76"
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},
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{
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"name": "https://github.com/matrix-org/matrix-js-sdk/releases/tag/v19.7.0",
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"refsource": "MISC",
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"url": "https://github.com/matrix-org/matrix-js-sdk/releases/tag/v19.7.0"
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},
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{
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"name": "https://matrix.org/blog/2022/09/28/upgrade-now-to-address-encryption-vulns-in-matrix-sdks-and-clients",
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"refsource": "MISC",
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"url": "https://matrix.org/blog/2022/09/28/upgrade-now-to-address-encryption-vulns-in-matrix-sdks-and-clients"
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},
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{
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"name": "https://github.com/matrix-org/matrix-js-sdk/security/advisories/GHSA-r48r-j8fx-mq2c",
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"refsource": "CONFIRM",
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"url": "https://github.com/matrix-org/matrix-js-sdk/security/advisories/GHSA-r48r-j8fx-mq2c"
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},
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{
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"refsource": "GENTOO",
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"name": "GLSA-202210-35",
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"url": "https://security.gentoo.org/glsa/202210-35"
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}
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]
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},
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"source": {
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"advisory": "GHSA-r48r-j8fx-mq2c",
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"discovery": "UNKNOWN"
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}
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} |