143 lines
6.2 KiB
JSON
143 lines
6.2 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-2026-45309",
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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": "2026-05-11T20:14:43.203Z",
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"datePublished": "2026-07-17T18:40:02.428Z",
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"dateUpdated": "2026-07-21T01:55:16.704Z"
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},
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"containers": {
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"cna": {
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"title": "AsyncSSH `AuthorizedKeysFile %u` path traversal allows attacker-selected authorized keys to authenticate a traversal username",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-22",
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"lang": "en",
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"description": "CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')",
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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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"cvssV4_0": {
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"attackVector": "NETWORK",
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"attackComplexity": "LOW",
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"attackRequirements": "PRESENT",
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"privilegesRequired": "NONE",
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"userInteraction": "NONE",
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"vulnConfidentialityImpact": "NONE",
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"vulnIntegrityImpact": "HIGH",
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"vulnAvailabilityImpact": "NONE",
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"subConfidentialityImpact": "NONE",
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"subIntegrityImpact": "NONE",
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"subAvailabilityImpact": "NONE",
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"baseScore": 8.2,
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"baseSeverity": "HIGH",
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"vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N",
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"version": "4.0"
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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/ronf/asyncssh/security/advisories/GHSA-g794-3fmp-753h",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/ronf/asyncssh/security/advisories/GHSA-g794-3fmp-753h"
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},
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{
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"name": "https://github.com/ronf/asyncssh/commit/2af2382cce946c959a378a62f257af253dc4ab51",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/ronf/asyncssh/commit/2af2382cce946c959a378a62f257af253dc4ab51"
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},
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{
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"name": "https://github.com/ronf/asyncssh/commit/3d515ba9ba0cd9990d248bdf62bcf05d51261a88",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/ronf/asyncssh/commit/3d515ba9ba0cd9990d248bdf62bcf05d51261a88"
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}
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],
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"affected": [
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{
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"vendor": "ronf",
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"product": "asyncssh",
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"versions": [
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{
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"version": "< 2.23.0",
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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": "2026-07-17T18:40:02.428Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "AsyncSSH is a Python package which provides an asynchronous client and server implementation of the SSHv2 protocol on top of the Python asyncio framework. Prior to 2.23.0, AsyncSSH expands the OpenSSH-compatible AuthorizedKeysFile %u token in asyncssh/config.py, asyncssh/connection.py, asyncssh/auth_keys.py, and asyncssh/misc.py with the raw SSH username during pre-authentication server config reload, allowing a server configured with AuthorizedKeysFile authorized_keys/%u to read an authorized-keys file outside the intended directory when the SSH username contains /, \\, or .. path traversal segments and authenticate with an attacker-selected key file. This issue is fixed in version 2.23.0."
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}
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],
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"source": {
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"advisory": "GHSA-g794-3fmp-753h",
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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/ronf/asyncssh/security/advisories/GHSA-g794-3fmp-753h",
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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": "2026-07-21T01:53:33.077751Z",
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"id": "CVE-2026-45309",
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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": "yes"
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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": "2026-07-21T01:55:16.704Z"
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}
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}
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]
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}
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} |