CVE-2020-25097

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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:squid-cache:squid:*:*:*:*:*:*:*:*", "matchCriteriaId": "7B208B84-A890-4495-B7EC-AD1023E9522D", "versionEndExcluding": "4.14", "versionStartIncluding": "2.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:*", "matchCriteriaId": "91D0229E-67AA-43EA-9178-5EF50D38F700", "versionEndExcluding": "5.0.5", "versionStartIncluding": "5.0.1", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*", "matchCriteriaId": "07B237A9-69A3-4A9C-9DA0-4E06BD37AE73", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*", "matchCriteriaId": "36D96259-24BD-44E2-96D9-78CE1D41F956", "vulnerable": true}, {"criteria": "cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*", "matchCriteriaId": "E460AA51-FCDA-46B9-AE97-E6676AA5E194", "vulnerable": true}, {"criteria": "cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*", "matchCriteriaId": "A930E247-0B43-43CB-98FF-6CE7B8189835", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:netapp:cloud_manager:-:*:*:*:*:*:*:*", "matchCriteriaId": "197D0D80-6702-4B61-B681-AFDBA7D69067", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "An issue was discovered in Squid through 4.13 and 5.x through 5.0.4. Due to improper input validation, it allows a trusted client to perform HTTP Request Smuggling and access services otherwise forbidden by the security controls. This occurs for certain uri_whitespace configuration settings."}, {"lang": "es", "value": "Se detect\u00f3 un problema en Squid versiones hasta 4.13 y versiones 5.x hasta 5.0.4. Debido a una comprobaci\u00f3n inapropiada de la entrada, permite a un cliente confiable llevar a cabo un Trafico No Autorizado de Peticiones HTTP y acceder a servicios que de otro modo estar\u00edan prohibidos por los controles de seguridad. Esto ocurre para determinados ajustes de configuraci\u00f3n de uri_whitespace"}], "id": "CVE-2020-25097", "lastModified": "2026-06-17T03:06:22.623", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 5.0, "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 8.6, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 4.0, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-03-19T05:15:12.480", "references": [{"source": "cve@mitre.org", "tags": ["Mailing List", "Patch", "Vendor Advisory"], "url": "http://www.squid-cache.org/Versions/v4/changesets/SQUID-2020_11.patch"}, {"source": "cve@mitre.org", "tags": ["Mailing List", "Patch", "Vendor Advisory"], "url": "http://www.squid-cache.org/Versions/v5/changesets/SQUID-2020_11.patch"}, {"source": "cve@mitre.org", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/squid-cache/squid/security/advisories/GHSA-jvf6-h9gj-pmj6"}, {"source": "cve@mitre.org", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DJMDRVV677AJL4BZAOLCT5LMFCGBZTC2/"}, {"source": "cve@mitre.org", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FBXFWKIGXPERDVQXG556LLPUOCMQGERC/"}, {"source": "cve@mitre.org", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/O3RYBDMJCPYGOSURWDR3WJTE474UFT77/"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "https://security.gentoo.org/glsa/202105-14"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "https://security.netapp.com/advisory/ntap-20210727-0010/"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "https://www.debian.org/security/2021/dsa-4873"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Patch", "Vendor Advisory"], "url": "http://www.squid-cache.org/Versions/v4/changesets/SQUID-2020_11.patch"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Patch", "Vendor Advisory"], "url": "http://www.squid-cache.org/Versions/v5/changesets/SQUID-2020_11.patch"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/squid-cache/squid/security/advisories/GHSA-jvf6-h9gj-pmj6"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DJMDRVV677AJL4BZAOLCT5LMFCGBZTC2/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FBXFWKIGXPERDVQXG556LLPUOCMQGERC/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/O3RYBDMJCPYGOSURWDR3WJTE474UFT77/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://security.gentoo.org/glsa/202105-14"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://security.netapp.com/advisory/ntap-20210727-0010/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://www.debian.org/security/2021/dsa-4873"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-20"}, {"lang": "en", "value": "CWE-444"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"affected_release": [{"advisory": "RHSA-2021:1135", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "squid-7:3.5.20-17.el7_9.6", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2021-04-08T00:00:00Z"}, {"advisory": "RHSA-2021:1979", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "squid:4-8040020210420090912.522a0ee4", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2021-05-18T00:00:00Z"}, {"advisory": "RHSA-2021:2025", "cpe": "cpe:/a:redhat:rhel_eus:8.1", "package": "squid:4-8010020210401091540.c27ad7f8", "product_name": "Red Hat Enterprise Linux 8.1 Extended Update Support", "release_date": "2021-05-19T00:00:00Z"}, {"advisory": "RHSA-2021:2025", "cpe": "cpe:/a:redhat:rhel_eus:8.2", "package": "squid:4-8020020210401090524.4cda2c84", "product_name": "Red Hat Enterprise Linux 8.2 Extended Update Support", "release_date": "2021-05-19T00:00:00Z"}], "bugzilla": {"description": "squid: improper input validation may allow a trusted client to perform HTTP request smuggling", "id": "1939925", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1939925"}, "csaw": false, "cvss3": {"cvss3_base_score": "8.6", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N", "status": "verified"}, "cwe": "CWE-444", "details": ["An issue was discovered in Squid through 4.13 and 5.x through 5.0.4. Due to improper input validation, it allows a trusted client to perform HTTP Request Smuggling and access services otherwise forbidden by the security controls. This occurs for certain uri_whitespace configuration settings.", "A flaw was found in squid. Due to improper validation while parsing the request URI, squid is vulnerable to HTTP request smuggling. This issue could allow a trusted client to perform an HTTP request smuggling attack and access services otherwise forbidden by squid. The highest threat from this vulnerability is to data confidentiality."], "mitigation": {"lang": "en:us", "value": "This flaw can be mitigated by setting the `uri_whitespace` directive in squid.conf to either: \n```\nuri_whitespace deny\n```\nor\n```\nuri_whitespace encode\n```"}, "name": "CVE-2020-25097", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "squid", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "squid34", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "squid", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2020-09-04T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2020-25097\nhttps://nvd.nist.gov/vuln/detail/CVE-2020-25097\nhttps://github.com/squid-cache/squid/security/advisories/GHSA-jvf6-h9gj-pmj6"], "statement": "This flaw is not tied to a specific proxy type (e.g., forward or reverse) and has been rated as having a security impact of Important. This flaw affects the versions of Squid as shipped with Red Hat Enterprise Linux 7 and 8, and is not currently planned to be addressed in future updates of Red Hat Enterprise Linux 6. Red Hat Enterprise Linux 6 is now in Extended Life Phase of the support and maintenance life cycle. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata/.", "threat_severity": "Important"}

{}