CVE-2020-25705

{"containers": {"cna": {"affected": [{"product": "Siemens Lunux Based Products", "vendor": "n/a", "versions": [{"status": "affected", "version": "RUGGEDCOM RM1224: All versions between v5.0 and v6.4, SCALANCE M-800: All versions between v5.0 and v6.4, SCALANCE S615: All versions between v5.0 and v6.4, SCALANCE SC-600: All versions prior to v2.1.3, SCALANCE W1750D: v8.3.0.1, v8.6.0, and v8.7.0, SIMATIC Cloud Connect 7: All versions, SIMATIC MV500 Family: All versions, SIMATIC NET CP 1243-1 (incl. SIPLUS variants): Versions 3.1.39 and later, SIMATIC NET CP 1243-7 LTE EU: Versions 3.1.39 and later, SIMATIC NET CP 1243-7 LTE US: Versions 3.1.39 and later, SIMATIC NET CP 1243-7: Versions 3.1.39 and later, SIMATIC NET CP 1243-8 IRC: Versions 3.1.39 and later, SIMATIC NET CP 1542SP-1 IRC (incl. SIPLUS variants): Versions 2.0 and later, SIMATIC NET CP 1542SP-1: Versions 2.0 and later, SIMATIC NET CP 1543-1 (incl. SIPLUS variants): Versions 2.2 and later, SIMATIC NET CP 1543SP-1 (incl SIPLUS variants): Versions 2.0 and later, SIMATIC NET CP 1545-1: All versions, SINEMA Remote Connect Server: All versions prior to v3.0 SP1, TIM 1531 IRC (incl. SI ...[truncated*]"}]}], "descriptions": [{"lang": "en", "value": "A flaw in ICMP packets in the Linux kernel may allow an attacker to quickly scan open UDP ports. This flaw allows an off-path remote attacker to effectively bypass source port UDP randomization. Software that relies on UDP source port randomization are indirectly affected as well on the Linux Based Products (RUGGEDCOM RM1224: All versions between v5.0 and v6.4, SCALANCE M-800: All versions between v5.0 and v6.4, SCALANCE S615: All versions between v5.0 and v6.4, SCALANCE SC-600: All versions prior to v2.1.3, SCALANCE W1750D: v8.3.0.1, v8.6.0, and v8.7.0, SIMATIC Cloud Connect 7: All versions, SIMATIC MV500 Family: All versions, SIMATIC NET CP 1243-1 (incl. SIPLUS variants): Versions 3.1.39 and later, SIMATIC NET CP 1243-7 LTE EU: Version"}], "problemTypes": [{"descriptions": [{"cweId": "CWE-330", "description": "USE OF INSUFFICIENTLY RANDOM VALUES CWE-330", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2021-05-18T10:48:35.000Z", "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "shortName": "redhat"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://us-cert.cisa.gov/ics/advisories/icsa-21-131-03"}], "x_ConverterErrors": {"version_name": {"error": "version_name too long. Use array of versions to record more than one version.", "message": "Truncated!"}}, "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "secalert@redhat.com", "ID": "CVE-2020-25705", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "Siemens Lunux Based Products", "version": {"version_data": [{"version_value": "RUGGEDCOM RM1224: All versions between v5.0 and v6.4, SCALANCE M-800: All versions between v5.0 and v6.4, SCALANCE S615: All versions between v5.0 and v6.4, SCALANCE SC-600: All versions prior to v2.1.3, SCALANCE W1750D: v8.3.0.1, v8.6.0, and v8.7.0, SIMATIC Cloud Connect 7: All versions, SIMATIC MV500 Family: All versions, SIMATIC NET CP 1243-1 (incl. 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{"affected": [{"affectedData": [{"product": "Siemens Lunux Based Products", "vendor": "n/a", "versions": [{"status": "affected", "version": "RUGGEDCOM RM1224: All versions between v5.0 and v6.4, SCALANCE M-800: All versions between v5.0 and v6.4, SCALANCE S615: All versions between v5.0 and v6.4, SCALANCE SC-600: All versions prior to v2.1.3, SCALANCE W1750D: v8.3.0.1, v8.6.0, and v8.7.0, SIMATIC Cloud Connect 7: All versions, SIMATIC MV500 Family: All versions, SIMATIC NET CP 1243-1 (incl. SIPLUS variants): Versions 3.1.39 and later, SIMATIC NET CP 1243-7 LTE EU: Versions 3.1.39 and later, SIMATIC NET CP 1243-7 LTE US: Versions 3.1.39 and later, SIMATIC NET CP 1243-7: Versions 3.1.39 and later, SIMATIC NET CP 1243-8 IRC: Versions 3.1.39 and later, SIMATIC NET CP 1542SP-1 IRC (incl. SIPLUS variants): Versions 2.0 and later, SIMATIC NET CP 1542SP-1: Versions 2.0 and later, SIMATIC NET CP 1543-1 (incl. SIPLUS variants): Versions 2.2 and later, SIMATIC NET CP 1543SP-1 (incl SIPLUS variants): Versions 2.0 and later, SIMATIC NET CP 1545-1: All versions, SINEMA Remote Connect Server: All versions prior to v3.0 SP1, TIM 1531 IRC (incl. SI ...[truncated*]"}]}], "source": "secalert@redhat.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "8234E068-AD52-4010-BAB0-14E08C0B7ED5", "versionEndExcluding": "5.10.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*", "matchCriteriaId": "142AD0DD-4CF3-4D74-9442-459CE3347E3A", "vulnerable": true}, {"criteria": "cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*", "matchCriteriaId": "F4CFF558-3C47-480D-A2F0-BABF26042943", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A flaw in ICMP packets in the Linux kernel may allow an attacker to quickly scan open UDP ports. This flaw allows an off-path remote attacker to effectively bypass source port UDP randomization. Software that relies on UDP source port randomization are indirectly affected as well on the Linux Based Products (RUGGEDCOM RM1224: All versions between v5.0 and v6.4, SCALANCE M-800: All versions between v5.0 and v6.4, SCALANCE S615: All versions between v5.0 and v6.4, SCALANCE SC-600: All versions prior to v2.1.3, SCALANCE W1750D: v8.3.0.1, v8.6.0, and v8.7.0, SIMATIC Cloud Connect 7: All versions, SIMATIC MV500 Family: All versions, SIMATIC NET CP 1243-1 (incl. SIPLUS variants): Versions 3.1.39 and later, SIMATIC NET CP 1243-7 LTE EU: Version"}, {"lang": "es", "value": "Se encontr\u00f3 un fallo en los paquetes ICMP en el kernel de Linux puede permitir a un atacante escanear r\u00e1pidamente los puertos UDP abiertos. Este defecto permite a un atacante remoto fuera de la ruta eludir efectivamente la aleatorizaci\u00f3n del puerto de origen UDP. El software que depende de la aleatorizaci\u00f3n del puerto de origen UDP tambi\u00e9n se ve afectado indirectamente en los productos basados en Linux (RUGGEDCOM RM1224: Todas las versiones entre v5.0 y v6.4, SCALANCE M-800: Todas las versiones entre v5.0 y v6.4, SCALANCE S615: Todas las versiones entre v5.0 y v6.4, SCALANCE SC-600: Todas las versiones anteriores a la v2.1.3, SCALANCE W1750D: v8.3.0.1, v8.6.0 y v8.7.0, SIMATIC Cloud Connect 7: Todas las versiones, SIMATIC MV500 Family: Todas las versiones, SIMATIC NET CP 1243-1 (incluidas las variantes SIPLUS): Versiones 3.1.39 y posteriores, SIMATIC NET CP 1243-7 LTE EU: Versi\u00f3n"}], "id": "CVE-2020-25705", "lastModified": "2026-06-17T03:07:09.800", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 5.8, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:N", "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": 7.4, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 2.2, "impactScore": 5.2, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2020-11-17T02:15:13.427", "references": [{"source": "secalert@redhat.com", "url": "https://us-cert.cisa.gov/ics/advisories/icsa-21-131-03"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://us-cert.cisa.gov/ics/advisories/icsa-21-131-03"}], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-330"}], "source": "secalert@redhat.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-330"}], "source": "nvd@nist.gov", "type": "Secondary"}]}

{"affected_release": [{"advisory": "RHSA-2021:0857", "cpe": "cpe:/a:redhat:rhel_extras_rt:7", "package": "kernel-rt-0:3.10.0-1160.21.1.rt56.1158.el7", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2021-03-16T00:00:00Z"}, {"advisory": "RHSA-2021:0856", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "kernel-0:3.10.0-1160.21.1.el7", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2021-03-16T00:00:00Z"}, {"advisory": "RHSA-2021:2164", "cpe": "cpe:/o:redhat:rhel_aus:7.4", "package": "kernel-0:3.10.0-693.87.1.el7", "product_name": "Red Hat Enterprise Linux 7.4 Advanced Update Support", "release_date": "2021-06-01T00:00:00Z"}, {"advisory": "RHSA-2021:2164", "cpe": "cpe:/o:redhat:rhel_tus:7.4", "package": "kernel-0:3.10.0-693.87.1.el7", "product_name": "Red Hat Enterprise Linux 7.4 Telco Extended Update Support", "release_date": "2021-06-01T00:00:00Z"}, {"advisory": "RHSA-2021:2164", "cpe": "cpe:/o:redhat:rhel_e4s:7.4", "package": "kernel-0:3.10.0-693.87.1.el7", "product_name": "Red Hat Enterprise Linux 7.4 Update Services for SAP Solutions", "release_date": "2021-06-01T00:00:00Z"}, {"advisory": "RHSA-2021:2355", "cpe": "cpe:/o:redhat:rhel_aus:7.6", "package": "kernel-0:3.10.0-957.76.1.el7", "product_name": "Red Hat Enterprise Linux 7.6 Advanced Update Support(Disable again in 2026 - SPRHEL-7118)", "release_date": "2021-06-09T00:00:00Z"}, {"advisory": "RHSA-2021:2355", "cpe": "cpe:/o:redhat:rhel_tus:7.6", "package": "kernel-0:3.10.0-957.76.1.el7", "product_name": "Red Hat Enterprise Linux 7.6 Telco Extended Update Support", "release_date": "2021-06-09T00:00:00Z"}, {"advisory": "RHSA-2021:2355", "cpe": "cpe:/o:redhat:rhel_e4s:7.6", "package": "kernel-0:3.10.0-957.76.1.el7", "product_name": "Red Hat Enterprise Linux 7.6 Update Services for SAP Solutions", "release_date": "2021-06-09T00:00:00Z"}, {"advisory": "RHSA-2021:1531", "cpe": "cpe:/o:redhat:rhel_eus:7.7", "package": "kernel-0:3.10.0-1062.49.1.el7", "product_name": "Red Hat Enterprise Linux 7.7 Extended Update Support", "release_date": "2021-05-11T00:00:00Z"}, {"advisory": "RHSA-2021:0537", "cpe": "cpe:/a:redhat:enterprise_linux:8::nfv", "package": "kernel-rt-0:4.18.0-240.15.1.rt7.69.el8_3", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2021-02-16T00:00:00Z"}, {"advisory": "RHSA-2021:0558", "cpe": "cpe:/o:redhat:enterprise_linux:8", "package": "kernel-0:4.18.0-240.15.1.el8_3", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2021-02-16T00:00:00Z"}, {"advisory": "RHSA-2021:0686", "cpe": "cpe:/o:redhat:rhel_eus:8.1", "package": "kernel-0:4.18.0-147.43.1.el8_1", "product_name": "Red Hat Enterprise Linux 8.1 Extended Update Support", "release_date": "2021-03-03T00:00:00Z"}, {"advisory": "RHSA-2021:0774", "cpe": "cpe:/a:redhat:rhel_eus:8.2::nfv", "package": "kernel-rt-0:4.18.0-193.46.1.rt13.96.el8_2", "product_name": "Red Hat Enterprise Linux 8.2 Extended Update Support", "release_date": "2021-03-09T00:00:00Z"}, {"advisory": "RHSA-2021:0765", "cpe": "cpe:/o:redhat:rhel_eus:8.2", "package": "kernel-0:4.18.0-193.46.1.el8_2", "product_name": "Red Hat Enterprise Linux 8.2 Extended Update Support", "release_date": "2021-03-09T00:00:00Z"}], "bugzilla": {"description": "kernel: ICMP rate limiting can be used for DNS poisoning attack", "id": "1894579", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1894579"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.4", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N", "status": "verified"}, "cwe": "CWE-330", "details": ["A flaw in ICMP packets in the Linux kernel may allow an attacker to quickly scan open UDP ports. This flaw allows an off-path remote attacker to effectively bypass source port UDP randomization. Software that relies on UDP source port randomization are indirectly affected as well on the Linux Based Products (RUGGEDCOM RM1224: All versions between v5.0 and v6.4, SCALANCE M-800: All versions between v5.0 and v6.4, SCALANCE S615: All versions between v5.0 and v6.4, SCALANCE SC-600: All versions prior to v2.1.3, SCALANCE W1750D: v8.3.0.1, v8.6.0, and v8.7.0, SIMATIC Cloud Connect 7: All versions, SIMATIC MV500 Family: All versions, SIMATIC NET CP 1243-1 (incl. SIPLUS variants): Versions 3.1.39 and later, SIMATIC NET CP 1243-7 LTE EU: Version", "A flaw in the way reply ICMP packets are limited in the Linux kernel functionality was found that allows to quickly scan open UDP ports. This flaw allows an off-path remote user to effectively bypassing source port UDP randomization. The highest threat from this vulnerability is to confidentiality and possibly integrity, because software that relies on UDP source port randomization are indirectly affected as well."], "mitigation": {"lang": "en:us", "value": "The mitigation is to disable ICMP destination unreachable messages.\nThe commands to disable UDP port unreachable ICMP reply messages:\niptables -I OUTPUT -p icmp --icmp-type destination-unreachable -j DROP\nservice iptables save\nFor additional information about \"service iptables save\" please read https://access.redhat.com/solutions/1597703\nIt is not recommended to apply this rule if host being used as forwarder (router) of IP packets.\nOr it is possible to use this firewall-cmd instead of iptables and the result is similar:\nfirewall-cmd --permanent --direct --add-rule ipv4 filter OUTPUT 0 -p icmp --icmp-type destination-unreachable -j DROP"}, "name": "CVE-2020-25705", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 5"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Will not fix", "package_name": "kernel-alt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/a:redhat:enterprise_mrg:2", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise MRG 2"}], "public_date": "2020-11-13T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2020-25705\nhttps://nvd.nist.gov/vuln/detail/CVE-2020-25705"], "statement": "This issue is rated as having Moderate impact because of the attack scenario limitation. It is possible to harm the networking services only, but not for the overall system under attack, and impossible to get access to this remote system under attack.", "threat_severity": "Moderate"}

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