CVE-2019-25017

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{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:mit:krb5-appl:*:*:*:*:*:*:*:*", "matchCriteriaId": "BB399FFC-A7F4-491A-B6E8-7A622F7A23B5", "versionEndIncluding": "1.0.3", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "An issue was discovered in rcp in MIT krb5-appl through 1.0.3. Due to the rcp implementation being derived from 1983 rcp, the server chooses which files/directories are sent to the client. However, the rcp client only performs cursory validation of the object name returned (only directory traversal attacks are prevented). A malicious rcp server (or Man-in-The-Middle attacker) can overwrite arbitrary files in the rcp client target directory. If recursive operation (-r) is performed, the server can manipulate subdirectories as well (for example, to overwrite the .ssh/authorized_keys file). This issue is similar to CVE-2019-6111 and CVE-2019-7283. NOTE: MIT krb5-appl is not supported upstream but is shipped by a few Linux distributions. The affected code was removed from the supported MIT Kerberos 5 (aka krb5) product many years ago, at version 1.8."}, {"lang": "es", "value": "Se detect\u00f3 un problema en rcp en MIT krb5-appl versiones hasta 1.0.3. Debido a que la implementaci\u00f3n de rcp es derivado desde rcp 1983, el servidor elige qu\u00e9 archivos y directorios son enviados al cliente. Sin embargo, el cliente rcp solo lleva a cabo una comprobaci\u00f3n superficial del nombre del objeto devuelto (solo se evitan los ataques de saltos de directorio). Un servidor rcp malicioso (o un atacante Man-in-The-Middle) puede sobrescribir archivos arbitrarios en el directorio de destino del cliente rcp. Si una operaci\u00f3n recursiva (-r) se produce, el servidor tambi\u00e9n puede manipular subdirectorios (por ejemplo, para sobrescribir el archivo .ssh/allowed_keys). Este problema es similar al CVE-2019-6111 y CVE-2019-7283. NOTA: MIT krb5-appl no es compatible con versiones anteriores, pero algunas distribuciones de Linux lo entregan. El c\u00f3digo afectado es removido del producto MIT Kerberos 5 (tambi\u00e9n se conoce como krb5) compatible hace muchos a\u00f1os, en la versi\u00f3n 1.8"}], "id": "CVE-2019-25017", "lastModified": "2026-06-17T02:31:29.350", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 5.8, "confidentialityImpact": "NONE", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 8.6, "impactScore": 4.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.9, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 2.2, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-02-02T18:15:10.937", "references": [{"source": "cve@mitre.org", "tags": ["Exploit", "Issue Tracking", "Third Party Advisory"], "url": "https://bugzilla.suse.com/show_bug.cgi?id=1131109"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Issue Tracking", "Third Party Advisory"], "url": "https://bugzilla.suse.com/show_bug.cgi?id=1131109"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-863"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "krb5-appl: Improper validation of object names allows malicious server to overwrite files via rcp client", "id": "1927418", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1927418"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.9", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N", "status": "draft"}, "cwe": "CWE-20", "details": ["An issue was discovered in rcp in MIT krb5-appl through 1.0.3. Due to the rcp implementation being derived from 1983 rcp, the server chooses which files/directories are sent to the client. However, the rcp client only performs cursory validation of the object name returned (only directory traversal attacks are prevented). A malicious rcp server (or Man-in-The-Middle attacker) can overwrite arbitrary files in the rcp client target directory. If recursive operation (-r) is performed, the server can manipulate subdirectories as well (for example, to overwrite the .ssh/authorized_keys file). This issue is similar to CVE-2019-6111 and CVE-2019-7283. NOTE: MIT krb5-appl is not supported upstream but is shipped by a few Linux distributions. The affected code was removed from the supported MIT Kerberos 5 (aka krb5) product many years ago, at version 1.8."], "name": "CVE-2019-25017", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "krb5-appl", "product_name": "Red Hat Enterprise Linux 6"}], "public_date": "2021-02-02T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2019-25017\nhttps://nvd.nist.gov/vuln/detail/CVE-2019-25017\nhttps://bugzilla.suse.com/show_bug.cgi?id=1131109"], "threat_severity": "Moderate"}

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