140 lines
6.1 KiB
JSON
140 lines
6.1 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-2026-49253",
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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": "2026-05-28T14:33:01.179Z",
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"datePublished": "2026-08-19T14:31:55.683Z",
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"dateUpdated": "2026-08-21T19:31:45.169Z"
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},
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"containers": {
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"cna": {
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"title": "electerm: Path Traversal in Zmodem and Trzsz Download Filename Handling",
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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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"cvssV3_1": {
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"attackComplexity": "LOW",
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"attackVector": "NETWORK",
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"availabilityImpact": "LOW",
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"baseScore": 7.1,
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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": "UNCHANGED",
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"userInteraction": "REQUIRED",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/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/electerm/electerm/security/advisories/GHSA-38j7-23hf-9mhc",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/electerm/electerm/security/advisories/GHSA-38j7-23hf-9mhc"
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},
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{
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"name": "https://github.com/electerm/electerm/commit/fde153d677a170c5816368f6586647f3af4ef284",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/electerm/electerm/commit/fde153d677a170c5816368f6586647f3af4ef284"
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},
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{
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"name": "https://github.com/electerm/electerm/releases/tag/v3.11.11",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/electerm/electerm/releases/tag/v3.11.11"
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}
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],
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"affected": [
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{
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"vendor": "electerm",
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"product": "electerm",
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"versions": [
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{
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"version": "< 3.11.11",
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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": "2026-08-19T14:31:55.683Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "electerm is an open-sourced terminal/ssh/sftp/telnet/serialport/RDP/VNC/Spice/ftp client. Prior to 3.11.11, electerm uses remote-supplied filenames directly with path.join() while receiving Zmodem and Trzsz transfers. In src/app/server/zmodem.js, prepareReceiveFile() joins the filename to the user-selected save path, and in src/app/server/trzsz.js, getUniqueFilePath(), the openSaveFile() callback, and the savedFilePaths mapping construct destinations without sanitization. A malicious SSH server or remote shell can provide a filename containing traversal components such as ../escaped.txt or ../../.bashrc. When the victim accepts the transfer and selects a download directory, electerm can write outside that directory and overwrite files accessible to the desktop user, potentially changing sensitive configuration or impairing availability. This issue is fixed in version 3.11.11."
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}
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],
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"source": {
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"advisory": "GHSA-38j7-23hf-9mhc",
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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/electerm/electerm/security/advisories/GHSA-38j7-23hf-9mhc",
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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": "2026-08-21T19:31:22.919563Z",
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"id": "CVE-2026-49253",
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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": "2026-08-21T19:31:45.169Z"
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}
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}
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]
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}
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} |