{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-17T16:14:34.864","vulnerabilities":[{"cve":{"id":"CVE-2020-4044","sourceIdentifier":"security-advisories@github.com","published":"2020-06-30T16:15:16.203","lastModified":"2024-11-21T05:32:12.737","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"The xrdp-sesman service before version 0.9.13.1 can be crashed by connecting over port 3350 and supplying a malicious payload. Once the xrdp-sesman process is dead, an unprivileged attacker on the server could then proceed to start their own imposter sesman service listening on port 3350. This will allow them to capture any user credentials that are submitted to XRDP and approve or reject arbitrary login credentials. For xorgxrdp sessions in particular, this allows an unauthorized user to hijack an existing session. This is a buffer overflow attack, so there may be a risk of arbitrary code execution as well."},{"lang":"es","value":"El servicio xrdp-sesman versiones anteriores a 0.9.13.1 puede ser bloqueado al conectarse a través del puerto 3350 y suministrando una carga maliciosa. Una vez que el proceso xrdp-sesman está inactivo, un atacante sin privilegios en el servidor podría comenzar a iniciar su propio servicio impostor sesman escuchando en el puerto 3350. Esto les permitirá capturar cualquier credencial de usuario que sea enviada a XRDP y aprobar o rechazar credenciales de inicio de sesión arbitrarias. Para las sesiones xorgxrdp en particular, esto permite a un usuario no autorizado secuestrar una sesión existente. Este es un ataque de desbordamiento del búfer, por lo que también puede existir un riesgo de ejecución de código arbitraria"}],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","baseScore":7.5,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":3.6},{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":5.9}],"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:L/AC:L/Au:N/C:P/I:P/A:P","baseScore":4.6,"accessVector":"LOCAL","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"PARTIAL","integrityImpact":"PARTIAL","availabilityImpact":"PARTIAL"},"baseSeverity":"MEDIUM","exploitabilityScore":3.9,"impactScore":6.4,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Secondary","description":[{"lang":"en","value":"CWE-121"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:neutrinolabs:xrdp:*:*:*:*:*:*:*:*","versionEndExcluding":"0.9.13.1","matchCriteriaId":"AB124086-296A-4B17-A012-556DDF1E7E12"}]}]}],"references":[{"url":"http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00036.html","source":"security-advisories@github.com"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00037.html","source":"security-advisories@github.com"},{"url":"https://github.com/neutrinolabs/xrdp/commit/0c791d073d0eb344ee7aaafd221513dc9226762c","source":"security-advisories@github.com","tags":["Patch","Third Party Advisory"]},{"url":"https://github.com/neutrinolabs/xrdp/releases/tag/v0.9.13.1","source":"security-advisories@github.com","tags":["Release Notes","Third Party Advisory"]},{"url":"https://github.com/neutrinolabs/xrdp/security/advisories/GHSA-j9fv-6fwf-p3g4","source":"security-advisories@github.com","tags":["Third Party Advisory"]},{"url":"https://lists.debian.org/debian-lts-announce/2020/08/msg00015.html","source":"security-advisories@github.com"},{"url":"https://www.debian.org/security/2020/dsa-4737","source":"security-advisories@github.com"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00036.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00037.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/neutrinolabs/xrdp/commit/0c791d073d0eb344ee7aaafd221513dc9226762c","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch","Third Party Advisory"]},{"url":"https://github.com/neutrinolabs/xrdp/releases/tag/v0.9.13.1","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Release Notes","Third Party Advisory"]},{"url":"https://github.com/neutrinolabs/xrdp/security/advisories/GHSA-j9fv-6fwf-p3g4","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory"]},{"url":"https://lists.debian.org/debian-lts-announce/2020/08/msg00015.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.debian.org/security/2020/dsa-4737","source":"af854a3a-2127-422b-91ae-364da2661108"}]}}]}