GSD-2018-3777
Vulnerability from gsd - Updated: 2018-07-27 00:00Details
A flaw in how restforce constructs URL's may allow an attacker to inject
additional parameters into Salesforce API requests.
Impact
------
This flaw is only exploitable in applications that pass user input directly
to restforce's select, find, describe, update, upsert, and destroy methods.
Vulnerable code might look like:
```ruby
client.select('SomeSalesForceObject', params[:some-id],
...)
```
In such an application, attackers could pass `0016000000MRatd/describe`
as a request parameter, causing the server to make a request to a different
endpoint than the server is designed to handle. Since the Salesforce REST
API supports overriding HTTP methods via a request parameter, an attacker
could also cause the client's `select()` method to modify data, by passing
`0016000000MRatd/?_HttpMethod=PATCH&other-query-params=...`.
Workarounds
------
If possible, applications should track salesforce IDs internally, rather than
passing user-supplied IDs to salesforce. Such practice mitigates this
vulnerability, and in general is desirable for ensuring strong access control.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2018-3777",
"description": "Insufficient URI encoding in restforce before 3.0.0 allows attacker to inject arbitrary parameters into Salesforce API requests.",
"id": "GSD-2018-3777"
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"affected": [
{
"package": {
"ecosystem": "RubyGems",
"name": "restforce",
"purl": "pkg:gem/restforce"
}
}
],
"aliases": [
"CVE-2018-3777",
"GHSA-534w-937m-v7x3"
],
"details": "A flaw in how restforce constructs URL\u0027s may allow an attacker to inject\nadditional parameters into Salesforce API requests.\n\nImpact\n------\nThis flaw is only exploitable in applications that pass user input directly\nto restforce\u0027s select, find, describe, update, upsert, and destroy methods.\nVulnerable code might look like:\n\n```ruby\nclient.select(\u0027SomeSalesForceObject\u0027, params[:some-id],\n ...)\n```\n\nIn such an application, attackers could pass `0016000000MRatd/describe`\nas a request parameter, causing the server to make a request to a different\nendpoint than the server is designed to handle. Since the Salesforce REST\nAPI supports overriding HTTP methods via a request parameter, an attacker\ncould also cause the client\u0027s `select()` method to modify data, by passing\n`0016000000MRatd/?_HttpMethod=PATCH\u0026other-query-params=...`.\n\nWorkarounds\n------\nIf possible, applications should track salesforce IDs internally, rather than\npassing user-supplied IDs to salesforce. Such practice mitigates this\nvulnerability, and in general is desirable for ensuring strong access control.\n",
"id": "GSD-2018-3777",
"modified": "2018-07-27T00:00:00.000Z",
"published": "2018-07-27T00:00:00.000Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/restforce/restforce/pull/392"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": 9.8,
"type": "CVSS_V3"
}
],
"summary": "Insufficient URI encoding in restforce"
}
},
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"product": {
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"version": {
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"value": "Improper Input Validation (CWE-20)"
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},
"github.com/rubysec/ruby-advisory-db": {
"cve": "2018-3777",
"cvss_v3": 9.8,
"date": "2018-07-27",
"description": "A flaw in how restforce constructs URL\u0027s may allow an attacker to inject\nadditional parameters into Salesforce API requests.\n\nImpact\n------\nThis flaw is only exploitable in applications that pass user input directly\nto restforce\u0027s select, find, describe, update, upsert, and destroy methods.\nVulnerable code might look like:\n\n```ruby\nclient.select(\u0027SomeSalesForceObject\u0027, params[:some-id],\n ...)\n```\n\nIn such an application, attackers could pass `0016000000MRatd/describe`\nas a request parameter, causing the server to make a request to a different\nendpoint than the server is designed to handle. Since the Salesforce REST\nAPI supports overriding HTTP methods via a request parameter, an attacker\ncould also cause the client\u0027s `select()` method to modify data, by passing\n`0016000000MRatd/?_HttpMethod=PATCH\u0026other-query-params=...`.\n\nWorkarounds\n------\nIf possible, applications should track salesforce IDs internally, rather than\npassing user-supplied IDs to salesforce. Such practice mitigates this\nvulnerability, and in general is desirable for ensuring strong access control.\n",
"gem": "restforce",
"ghsa": "534w-937m-v7x3",
"patched_versions": [
"~\u003e 2.5.4",
"\u003e= 3.0.0"
],
"title": "Insufficient URI encoding in restforce",
"url": "https://github.com/restforce/restforce/pull/392"
},
"gitlab.com": {
"advisories": [
{
"affected_range": "\u003c3.0.0",
"affected_versions": "All versions before 3.0.0",
"cvss_v2": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
"cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"cwe_ids": [
"CWE-1035",
"CWE-172",
"CWE-937"
],
"date": "2019-10-09",
"description": "Insufficient URI encoding in restforce allows attacker to inject arbitrary parameters into Salesforce API requests.",
"fixed_versions": [
"3.0.0"
],
"identifier": "CVE-2018-3777",
"identifiers": [
"CVE-2018-3777"
],
"not_impacted": "All versions starting from 3.0.0",
"package_slug": "gem/restforce",
"pubdate": "2018-08-03",
"solution": "Upgrade to version 3.0.0 or above.",
"title": "Encoding Error",
"urls": [
"https://nvd.nist.gov/vuln/detail/CVE-2018-3777",
"https://github.com/restforce/restforce/pull/392"
],
"uuid": "7b3af806-5b4c-4523-86e0-4f4b6647b57d"
}
]
},
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"cpe_name": [],
"versionEndExcluding": "3.0.0",
"vulnerable": true
}
],
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}
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"name": "https://github.com/restforce/restforce/pull/392",
"refsource": "CONFIRM",
"tags": [
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"Third Party Advisory"
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"url": "https://github.com/restforce/restforce/pull/392"
}
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},
"impact": {
"baseMetricV2": {
"acInsufInfo": true,
"cvssV2": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 7.5,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "PARTIAL",
"vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
"version": "2.0"
},
"exploitabilityScore": 10.0,
"impactScore": 6.4,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"severity": "HIGH",
"userInteractionRequired": false
},
"baseMetricV3": {
"cvssV3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 5.9
}
},
"lastModifiedDate": "2023-02-28T17:55Z",
"publishedDate": "2018-08-03T20:29Z"
}
}
}
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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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