GSD-2020-28473
Vulnerability from gsd - Updated: 2023-12-13 01:22Details
The package bottle from 0 and before 0.12.19 are vulnerable to Web Cache Poisoning by using a vector called parameter cloaking. When the attacker can separate query parameters using a semicolon (;), they can cause a difference in the interpretation of the request between the proxy (running with default configuration) and the server. This can result in malicious requests being cached as completely safe ones, as the proxy would usually not see the semicolon as a separator, and therefore would not include it in a cache key of an unkeyed parameter.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2020-28473",
"description": "The package bottle from 0 and before 0.12.19 are vulnerable to Web Cache Poisoning by using a vector called parameter cloaking. When the attacker can separate query parameters using a semicolon (;), they can cause a difference in the interpretation of the request between the proxy (running with default configuration) and the server. This can result in malicious requests being cached as completely safe ones, as the proxy would usually not see the semicolon as a separator, and therefore would not include it in a cache key of an unkeyed parameter.",
"id": "GSD-2020-28473",
"references": [
"https://www.suse.com/security/cve/CVE-2020-28473.html",
"https://ubuntu.com/security/CVE-2020-28473",
"https://advisories.mageia.org/CVE-2020-28473.html",
"https://security.archlinux.org/CVE-2020-28473"
]
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"aliases": [
"CVE-2020-28473"
],
"details": "The package bottle from 0 and before 0.12.19 are vulnerable to Web Cache Poisoning by using a vector called parameter cloaking. When the attacker can separate query parameters using a semicolon (;), they can cause a difference in the interpretation of the request between the proxy (running with default configuration) and the server. This can result in malicious requests being cached as completely safe ones, as the proxy would usually not see the semicolon as a separator, and therefore would not include it in a cache key of an unkeyed parameter.",
"id": "GSD-2020-28473",
"modified": "2023-12-13T01:22:01.906925Z",
"schema_version": "1.4.0"
}
},
"namespaces": {
"cve.org": {
"CVE_data_meta": {
"ASSIGNER": "report@snyk.io",
"DATE_PUBLIC": "2021-01-18T11:12:14.506344Z",
"ID": "CVE-2020-28473",
"STATE": "PUBLIC",
"TITLE": "Web Cache Poisoning"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "bottle",
"version": {
"version_data": [
{
"version_affected": "\u003e=",
"version_value": "0"
},
{
"version_affected": "\u003c",
"version_value": "0.12.19"
}
]
}
}
]
},
"vendor_name": "n/a"
}
]
}
},
"credit": [
{
"lang": "eng",
"value": "Snyk Security Team"
}
],
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "The package bottle from 0 and before 0.12.19 are vulnerable to Web Cache Poisoning by using a vector called parameter cloaking. When the attacker can separate query parameters using a semicolon (;), they can cause a difference in the interpretation of the request between the proxy (running with default configuration) and the server. This can result in malicious requests being cached as completely safe ones, as the proxy would usually not see the semicolon as a separator, and therefore would not include it in a cache key of an unkeyed parameter."
}
]
},
"impact": {
"cvss": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 6.8,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:H/E:P/RL:O/RC:C",
"version": "3.1"
}
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"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "Web Cache Poisoning"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://snyk.io/vuln/SNYK-PYTHON-BOTTLE-1017108",
"refsource": "MISC",
"url": "https://snyk.io/vuln/SNYK-PYTHON-BOTTLE-1017108"
},
{
"name": "https://github.com/bottlepy/bottle",
"refsource": "MISC",
"url": "https://github.com/bottlepy/bottle"
},
{
"name": "https://snyk.io/blog/cache-poisoning-in-popular-open-source-packages/",
"refsource": "CONFIRM",
"url": "https://snyk.io/blog/cache-poisoning-in-popular-open-source-packages/"
},
{
"name": "[debian-lts-announce] 20210124 [SECURITY] [DLA 2531-1] python-bottle security update",
"refsource": "MLIST",
"url": "https://lists.debian.org/debian-lts-announce/2021/01/msg00019.html"
}
]
}
},
"gitlab.com": {
"advisories": [
{
"affected_range": "\u003c0.12.19",
"affected_versions": "All versions before 0.12.19",
"cvss_v2": "AV:N/AC:M/Au:N/C:P/I:P/A:N",
"cvss_v3": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:H",
"cwe_ids": [
"CWE-1035",
"CWE-444",
"CWE-937"
],
"date": "2021-01-28",
"description": "The package bottle from 0 are vulnerable to Web Cache Poisoning by using a vector called parameter cloaking. When the attacker can separate query parameters using a semicolon (`;`), they can cause a difference in the interpretation of the request between the proxy (running with default configuration) and the server. This can result in malicious requests being cached as completely safe ones, as the proxy would usually not see the semicolon as a separator, and therefore would not include it in a cache key of an unkeyed parameter.",
"fixed_versions": [
"0.12.19"
],
"identifier": "CVE-2020-28473",
"identifiers": [
"CVE-2020-28473"
],
"not_impacted": "All versions starting from 0.12.19",
"package_slug": "pypi/bottle",
"pubdate": "2021-01-18",
"solution": "Upgrade to version 0.12.19 or above.",
"title": "Inconsistent Interpretation of HTTP Requests (HTTP Request Smuggling)",
"urls": [
"https://nvd.nist.gov/vuln/detail/CVE-2020-28473"
],
"uuid": "c64f6c99-235b-4a41-80ad-d4faaaaeb0b0"
}
]
},
"nvd.nist.gov": {
"configurations": {
"CVE_data_version": "4.0",
"nodes": [
{
"children": [],
"cpe_match": [
{
"cpe23Uri": "cpe:2.3:a:bottlepy:bottle:*:*:*:*:*:*:*:*",
"cpe_name": [],
"versionEndExcluding": "0.12.19",
"vulnerable": true
}
],
"operator": "OR"
},
{
"children": [],
"cpe_match": [
{
"cpe23Uri": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
}
],
"operator": "OR"
}
]
},
"cve": {
"CVE_data_meta": {
"ASSIGNER": "report@snyk.io",
"ID": "CVE-2020-28473"
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"data_format": "MITRE",
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"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "en",
"value": "The package bottle from 0 and before 0.12.19 are vulnerable to Web Cache Poisoning by using a vector called parameter cloaking. When the attacker can separate query parameters using a semicolon (;), they can cause a difference in the interpretation of the request between the proxy (running with default configuration) and the server. This can result in malicious requests being cached as completely safe ones, as the proxy would usually not see the semicolon as a separator, and therefore would not include it in a cache key of an unkeyed parameter."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "en",
"value": "CWE-444"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://snyk.io/vuln/SNYK-PYTHON-BOTTLE-1017108",
"refsource": "MISC",
"tags": [
"Exploit",
"Third Party Advisory"
],
"url": "https://snyk.io/vuln/SNYK-PYTHON-BOTTLE-1017108"
},
{
"name": "https://github.com/bottlepy/bottle",
"refsource": "MISC",
"tags": [
"Product",
"Third Party Advisory"
],
"url": "https://github.com/bottlepy/bottle"
},
{
"name": "https://snyk.io/blog/cache-poisoning-in-popular-open-source-packages/",
"refsource": "CONFIRM",
"tags": [
"Third Party Advisory"
],
"url": "https://snyk.io/blog/cache-poisoning-in-popular-open-source-packages/"
},
{
"name": "[debian-lts-announce] 20210124 [SECURITY] [DLA 2531-1] python-bottle security update",
"refsource": "MLIST",
"tags": [
"Third Party Advisory"
],
"url": "https://lists.debian.org/debian-lts-announce/2021/01/msg00019.html"
}
]
}
},
"impact": {
"baseMetricV2": {
"acInsufInfo": false,
"cvssV2": {
"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,
"severity": "MEDIUM",
"userInteractionRequired": true
},
"baseMetricV3": {
"cvssV3": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 6.8,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.6,
"impactScore": 5.2
}
},
"lastModifiedDate": "2021-01-28T15:57Z",
"publishedDate": "2021-01-18T12:15Z"
}
}
}
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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.
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