CVE-2021-33580

{"containers": {"cna": {"affected": [{"product": "Apache Roller", "vendor": "Apache Software Foundation", "versions": [{"lessThan": "6.0.2", "status": "affected", "version": "Apache Roller", "versionType": "custom"}]}], "credits": [{"lang": "en", "value": "Apache Roller would like to thank Ed Ra (https://github.com/edvraa) for reporting this."}], "descriptions": [{"lang": "en", "value": "User controlled `request.getHeader(\"Referer\")`, `request.getRequestURL()` and `request.getQueryString()` are used to build and run a regex expression. The attacker doesn't have to use a browser and may send a specially crafted Referer header programmatically. Since the attacker controls the string and the regex pattern he may cause a ReDoS by regex catastrophic backtracking on the server side. This problem has been fixed in Roller 6.0.2."}], "metrics": [{"other": {"content": {"other": "Low: This attack will only work if Banned-words Referrer processing is turned on in Roller and it is off-by-default."}, "type": "unknown"}}], "problemTypes": [{"descriptions": [{"cweId": "CWE-400", "description": "CWE-400 Uncontrolled Resource Consumption", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2021-08-18T08:06:23.000Z", "orgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "shortName": "apache"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://lists.apache.org/thread.html/r9d967d80af941717573e531db2c7353a90bfd0886e9b5d5d79f75506%40%3Cuser.roller.apache.org%3E"}, {"name": "[oss-security] 20210817 CVE-2021-33580: Apache Roller: regex injection leading to DoS", "tags": ["mailing-list", "x_refsource_MLIST"], "url": "http://www.openwall.com/lists/oss-security/2021/08/18/1"}], "source": {"discovery": "UNKNOWN"}, "title": "regex injection leading to DoS", "workarounds": [{"lang": "en", "value": "This problem has been fixed in Roller 6.0.2. If you are not able to upgrade then you can \"work around\" the problem.\n\nIf Banned-Words Referrer processing is enabled and you are concerned about this type of attack then disable it.\n\nIn the Roller properties, set this property site.bannedwordslist.enable.referrers=false"}], "x_generator": {"engine": "Vulnogram 0.0.9"}, "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "security@apache.org", "ID": "CVE-2021-33580", "STATE": "PUBLIC", "TITLE": "regex injection leading to DoS"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "Apache Roller", "version": {"version_data": [{"version_affected": "<", "version_name": "Apache Roller", "version_value": "6.0.2"}]}}]}, "vendor_name": "Apache Software Foundation"}]}}, "credit": [{"lang": "eng", "value": "Apache Roller would like to thank Ed Ra (https://github.com/edvraa) for reporting this."}], "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "User controlled `request.getHeader(\"Referer\")`, `request.getRequestURL()` and `request.getQueryString()` are used to build and run a regex expression. The attacker doesn't have to use a browser and may send a specially crafted Referer header programmatically. Since the attacker controls the string and the regex pattern he may cause a ReDoS by regex catastrophic backtracking on the server side. This problem has been fixed in Roller 6.0.2."}]}, "generator": {"engine": "Vulnogram 0.0.9"}, "impact": [{"other": "Low: This attack will only work if Banned-words Referrer processing is turned on in Roller and it is off-by-default."}], "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-400 Uncontrolled Resource Consumption"}]}]}, "references": {"reference_data": [{"name": "https://lists.apache.org/thread.html/r9d967d80af941717573e531db2c7353a90bfd0886e9b5d5d79f75506%40%3Cuser.roller.apache.org%3E", "refsource": "MISC", "url": "https://lists.apache.org/thread.html/r9d967d80af941717573e531db2c7353a90bfd0886e9b5d5d79f75506%40%3Cuser.roller.apache.org%3E"}, {"name": "[oss-security] 20210817 CVE-2021-33580: Apache Roller: regex injection leading to DoS", "refsource": "MLIST", "url": "http://www.openwall.com/lists/oss-security/2021/08/18/1"}]}, "source": {"discovery": "UNKNOWN"}, "work_around": [{"lang": "en", "value": "This problem has been fixed in Roller 6.0.2. If you are not able to upgrade then you can \"work around\" the problem.\n\nIf Banned-Words Referrer processing is enabled and you are concerned about this type of attack then disable it.\n\nIn the Roller properties, set this property site.bannedwordslist.enable.referrers=false"}]}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T23:50:43.188Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://lists.apache.org/thread.html/r9d967d80af941717573e531db2c7353a90bfd0886e9b5d5d79f75506%40%3Cuser.roller.apache.org%3E"}, {"name": "[oss-security] 20210817 CVE-2021-33580: Apache Roller: regex injection leading to DoS", "tags": ["mailing-list", "x_refsource_MLIST", "x_transferred"], "url": "http://www.openwall.com/lists/oss-security/2021/08/18/1"}]}]}, "cveMetadata": {"assignerOrgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "assignerShortName": "apache", "cveId": "CVE-2021-33580", "datePublished": "2021-08-18T07:50:10.000Z", "dateReserved": "2021-05-26T00:00:00.000Z", "dateUpdated": "2024-08-03T23:50:43.188Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

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{"affected": [{"affectedData": [{"product": "Apache Roller", "vendor": "Apache Software Foundation", "versions": [{"lessThan": "6.0.2", "status": "affected", "version": "Apache Roller", "versionType": "custom"}]}], "source": "security@apache.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:apache:roller:*:*:*:*:*:*:*:*", "matchCriteriaId": "4A3A7D5E-4C46-4659-B300-EEA08ED8BC29", "versionEndExcluding": "6.0.2", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "User controlled `request.getHeader(\"Referer\")`, `request.getRequestURL()` and `request.getQueryString()` are used to build and run a regex expression. The attacker doesn't have to use a browser and may send a specially crafted Referer header programmatically. Since the attacker controls the string and the regex pattern he may cause a ReDoS by regex catastrophic backtracking on the server side. This problem has been fixed in Roller 6.0.2."}, {"lang": "es", "value": "Los controles de usuario \"request.getHeader(\"Referer\")\", \"request.getRequestURL()\" y \"request.getQueryString()\" son usados para construir y ejecutar una expresi\u00f3n regex. El atacante no tiene que usar un navegador y puede enviar un encabezado Referer especialmente dise\u00f1ada mediante programaci\u00f3n. Dado que el atacante controla la cadena y el patr\u00f3n regex, puede causar un ReDoS mediante el retroceso catastr\u00f3fico de regex en el lado del servidor. Este problema ha sido corregido en Roller versi\u00f3n 6.0.2."}], "id": "CVE-2021-33580", "lastModified": "2026-06-17T03:54:49.400", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 4.3, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 8.6, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-08-18T08:15:06.173", "references": [{"source": "security@apache.org", "tags": ["Mailing List", "Third Party Advisory"], "url": "http://www.openwall.com/lists/oss-security/2021/08/18/1"}, {"source": "security@apache.org", "tags": ["Mailing List", "Vendor Advisory"], "url": "https://lists.apache.org/thread.html/r9d967d80af941717573e531db2c7353a90bfd0886e9b5d5d79f75506%40%3Cuser.roller.apache.org%3E"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Third Party Advisory"], "url": "http://www.openwall.com/lists/oss-security/2021/08/18/1"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Vendor Advisory"], "url": "https://lists.apache.org/thread.html/r9d967d80af941717573e531db2c7353a90bfd0886e9b5d5d79f75506%40%3Cuser.roller.apache.org%3E"}], "sourceIdentifier": "security@apache.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-400"}], "source": "security@apache.org", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-400"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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