CVE-2021-33580 (GCVE-0-2021-33580)
Vulnerability from cvelistv5 – Published: 2021-08-18 07:50 – Updated: 2024-08-03 23:50
VLAI?
Summary
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.
Severity ?
No CVSS data available.
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Apache Software Foundation | Apache Roller |
Affected:
Apache Roller , < 6.0.2
(custom)
|
Credits
Apache Roller would like to thank Ed Ra (https://github.com/edvraa) for reporting this.
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-03T23:50:43.188Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"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"
}
],
"title": "CVE Program Container"
}
],
"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\u0027t 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",
"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": "\u003c",
"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\u0027t 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"
}
]
}
}
},
"cveMetadata": {
"assignerOrgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09",
"assignerShortName": "apache",
"cveId": "CVE-2021-33580",
"datePublished": "2021-08-18T07:50:10",
"dateReserved": "2021-05-26T00:00:00",
"dateUpdated": "2024-08-03T23:50:43.188Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"vulnerability-lookup:meta": {
"fkie_nvd": {
"configurations": "[{\"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:apache:roller:*:*:*:*:*:*:*:*\", \"versionEndExcluding\": \"6.0.2\", \"matchCriteriaId\": \"4A3A7D5E-4C46-4659-B300-EEA08ED8BC29\"}]}]}]",
"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\u0027t 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": "2024-11-21T06:09:08.060",
"metrics": "{\"cvssMetricV31\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"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}], \"cvssMetricV2\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"2.0\", \"vectorString\": \"AV:N/AC:M/Au:N/C:N/I:N/A:P\", \"baseScore\": 4.3, \"accessVector\": \"NETWORK\", \"accessComplexity\": \"MEDIUM\", \"authentication\": \"NONE\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"PARTIAL\"}, \"baseSeverity\": \"MEDIUM\", \"exploitabilityScore\": 8.6, \"impactScore\": 2.9, \"acInsufInfo\": false, \"obtainAllPrivilege\": false, \"obtainUserPrivilege\": false, \"obtainOtherPrivilege\": false, \"userInteractionRequired\": false}]}",
"published": "2021-08-18T08:15:06.173",
"references": "[{\"url\": \"http://www.openwall.com/lists/oss-security/2021/08/18/1\", \"source\": \"security@apache.org\", \"tags\": [\"Mailing List\", \"Third Party Advisory\"]}, {\"url\": \"https://lists.apache.org/thread.html/r9d967d80af941717573e531db2c7353a90bfd0886e9b5d5d79f75506%40%3Cuser.roller.apache.org%3E\", \"source\": \"security@apache.org\", \"tags\": [\"Mailing List\", \"Vendor Advisory\"]}, {\"url\": \"http://www.openwall.com/lists/oss-security/2021/08/18/1\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Mailing List\", \"Third Party Advisory\"]}, {\"url\": \"https://lists.apache.org/thread.html/r9d967d80af941717573e531db2c7353a90bfd0886e9b5d5d79f75506%40%3Cuser.roller.apache.org%3E\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Mailing List\", \"Vendor Advisory\"]}]",
"sourceIdentifier": "security@apache.org",
"vulnStatus": "Modified",
"weaknesses": "[{\"source\": \"security@apache.org\", \"type\": \"Secondary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-400\"}]}, {\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-400\"}]}]"
},
"nvd": "{\"cve\":{\"id\":\"CVE-2021-33580\",\"sourceIdentifier\":\"security@apache.org\",\"published\":\"2021-08-18T08:15:06.173\",\"lastModified\":\"2024-11-21T06:09:08.060\",\"vulnStatus\":\"Modified\",\"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\u0027t 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.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"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}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:M/Au:N/C:N/I:N/A:P\",\"baseScore\":4.3,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"MEDIUM\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"PARTIAL\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":8.6,\"impactScore\":2.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"security@apache.org\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-400\"}]},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-400\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:apache:roller:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"6.0.2\",\"matchCriteriaId\":\"4A3A7D5E-4C46-4659-B300-EEA08ED8BC29\"}]}]}],\"references\":[{\"url\":\"http://www.openwall.com/lists/oss-security/2021/08/18/1\",\"source\":\"security@apache.org\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"https://lists.apache.org/thread.html/r9d967d80af941717573e531db2c7353a90bfd0886e9b5d5d79f75506%40%3Cuser.roller.apache.org%3E\",\"source\":\"security@apache.org\",\"tags\":[\"Mailing List\",\"Vendor Advisory\"]},{\"url\":\"http://www.openwall.com/lists/oss-security/2021/08/18/1\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"https://lists.apache.org/thread.html/r9d967d80af941717573e531db2c7353a90bfd0886e9b5d5d79f75506%40%3Cuser.roller.apache.org%3E\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\",\"Vendor Advisory\"]}]}}"
}
}
Loading…
Loading…
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Loading…
Loading…