{"id":"CVE-2018-18654","aliases":["EUVD-2018-10370","GHSA-f955-5pqg-q2q8","UBUNTU-CVE-2018-18654"],"status":"published","title":"Crossroads 2.81 does not properly handle the /tmp directory during a build of xr. A local...","description":"Crossroads 2.81 does not properly handle the /tmp directory during a build of xr. A local attacker can first create a world-writable subdirectory in a certain location under the /tmp directory, wait until a user process copies xr there, and then replace the entire contents of this subdirectory to include a Trojan horse xr.","severity":{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.00306,"percentile":0.23562,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-732"],"published":"2018-10-26T00:00:00Z","modified":"2026-06-17T01:47:38Z","affected":[{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"crossroads","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.65-1.1","2.65-2"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"crossroads","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.81-2"]}],"products":[{"vendor":"debian","product":"crossroads"}],"references":[{"url":"https://bugs.debian.org/911877","tags":["x_refsource_MISC","x_transferred","Issue Tracking","Mailing List","Vendor Advisory","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-18654"},{"url":"https://github.com/advisories/GHSA-f955-5pqg-q2q8"},{"url":"https://ubuntu.com/security/CVE-2018-18654","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2018-18654","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2018-18654","description":"Crossroads 2.81 does not properly handle the /tmp directory during a build of xr. A local attacker can first create a world-writable subdirectory in a certain location under the /tmp directory, wait until a user process copies xr there, and then replace the entire contents of this subdirectory to include a Trojan horse xr.","status":"published","published":"2018-10-26T00:00:00Z","modified":"2024-09-16T18:04:18.723Z","updated_at":"2026-11-02T14:35:11.799349Z"}],"euvd":[{"id":"EUVD-2018-10370","description":"Crossroads 2.81 does not properly handle the /tmp directory during a build of xr. A local attacker can first create a world-writable subdirectory in a certain location under the /tmp directory, wait until a user process copies xr there, and then replace the entire contents of this subdirectory to include a Trojan horse xr.","status":"published","published":"2018-10-26T00:00:00Z","modified":"2024-09-16T18:04:18Z","updated_at":"2026-11-03T00:55:35.786755Z"}],"ghsa":[{"id":"GHSA-f955-5pqg-q2q8","title":"Crossroads 2.81 does not properly handle the /tmp directory during a build of xr. A local...","description":"Crossroads 2.81 does not properly handle the /tmp directory during a build of xr. A local attacker can first create a world-writable subdirectory in a certain location under the /tmp directory, wait until a user process copies xr there, and then replace the entire contents of this subdirectory to include a Trojan horse xr.","status":"published","published":"2022-05-13T01:50:45Z","modified":"2023-02-02T05:02:01Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-732"],"updated_at":"2026-11-02T14:51:19.670124Z"}],"nvd":[{"id":"CVE-2018-18654","description":"Crossroads 2.81 does not properly handle the /tmp directory during a build of xr. A local attacker can first create a world-writable subdirectory in a certain location under the /tmp directory, wait until a user process copies xr there, and then replace the entire contents of this subdirectory to include a Trojan horse xr.","status":"published","published":"2018-10-26T00:29:00.313Z","modified":"2026-06-17T01:47:38.877Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":7.2,"vector":"AV:L/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-732"],"updated_at":"2026-11-02T14:04:46.409324Z"}],"osv":[{"id":"UBUNTU-CVE-2018-18654","description":"Crossroads 2.81 does not properly handle the /tmp directory during a build of xr. A local attacker can first create a world-writable subdirectory in a certain location under the /tmp directory, wait until a user process copies xr there, and then replace the entire contents of this subdirectory to include a Trojan horse xr.","status":"published","published":"2018-10-26T00:29:00Z","modified":"2025-10-24T04:47:15Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:54:17.496046Z"}]}}