GSD-2017-12635
Vulnerability from gsd - Updated: 2023-12-13 01:21Details
Due to differences in the Erlang-based JSON parser and JavaScript-based JSON parser, it is possible in Apache CouchDB before 1.7.0 and 2.x before 2.1.1 to submit _users documents with duplicate keys for 'roles' used for access control within the database, including the special case '_admin' role, that denotes administrative users. In combination with CVE-2017-12636 (Remote Code Execution), this can be used to give non-admin users access to arbitrary shell commands on the server as the database system user. The JSON parser differences result in behaviour that if two 'roles' keys are available in the JSON, the second one will be used for authorising the document write, but the first 'roles' key is used for subsequent authorization for the newly created user. By design, users can not assign themselves roles. The vulnerability allows non-admin users to give themselves admin privileges.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2017-12635",
"description": "Due to differences in the Erlang-based JSON parser and JavaScript-based JSON parser, it is possible in Apache CouchDB before 1.7.0 and 2.x before 2.1.1 to submit _users documents with duplicate keys for \u0027roles\u0027 used for access control within the database, including the special case \u0027_admin\u0027 role, that denotes administrative users. In combination with CVE-2017-12636 (Remote Code Execution), this can be used to give non-admin users access to arbitrary shell commands on the server as the database system user. The JSON parser differences result in behaviour that if two \u0027roles\u0027 keys are available in the JSON, the second one will be used for authorising the document write, but the first \u0027roles\u0027 key is used for subsequent authorization for the newly created user. By design, users can not assign themselves roles. The vulnerability allows non-admin users to give themselves admin privileges.",
"id": "GSD-2017-12635",
"references": [
"https://www.suse.com/security/cve/CVE-2017-12635.html",
"https://security.archlinux.org/CVE-2017-12635",
"https://packetstormsecurity.com/files/cve/CVE-2017-12635"
]
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"aliases": [
"CVE-2017-12635"
],
"details": "Due to differences in the Erlang-based JSON parser and JavaScript-based JSON parser, it is possible in Apache CouchDB before 1.7.0 and 2.x before 2.1.1 to submit _users documents with duplicate keys for \u0027roles\u0027 used for access control within the database, including the special case \u0027_admin\u0027 role, that denotes administrative users. In combination with CVE-2017-12636 (Remote Code Execution), this can be used to give non-admin users access to arbitrary shell commands on the server as the database system user. The JSON parser differences result in behaviour that if two \u0027roles\u0027 keys are available in the JSON, the second one will be used for authorising the document write, but the first \u0027roles\u0027 key is used for subsequent authorization for the newly created user. By design, users can not assign themselves roles. The vulnerability allows non-admin users to give themselves admin privileges.",
"id": "GSD-2017-12635",
"modified": "2023-12-13T01:21:03.993413Z",
"schema_version": "1.4.0"
}
},
"namespaces": {
"cve.org": {
"CVE_data_meta": {
"ASSIGNER": "security@apache.org",
"DATE_PUBLIC": "2017-11-14T00:00:00",
"ID": "CVE-2017-12635",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "Apache CouchDB",
"version": {
"version_data": [
{
"version_value": "1.2.0 to 1.6.1"
},
{
"version_value": "2.0.0 to 2.1.0"
}
]
}
}
]
},
"vendor_name": "Apache Software Foundation"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "Due to differences in the Erlang-based JSON parser and JavaScript-based JSON parser, it is possible in Apache CouchDB before 1.7.0 and 2.x before 2.1.1 to submit _users documents with duplicate keys for \u0027roles\u0027 used for access control within the database, including the special case \u0027_admin\u0027 role, that denotes administrative users. In combination with CVE-2017-12636 (Remote Code Execution), this can be used to give non-admin users access to arbitrary shell commands on the server as the database system user. The JSON parser differences result in behaviour that if two \u0027roles\u0027 keys are available in the JSON, the second one will be used for authorising the document write, but the first \u0027roles\u0027 key is used for subsequent authorization for the newly created user. By design, users can not assign themselves roles. The vulnerability allows non-admin users to give themselves admin privileges."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "Information Disclosure"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "44498",
"refsource": "EXPLOIT-DB",
"url": "https://www.exploit-db.com/exploits/44498/"
},
{
"name": "45019",
"refsource": "EXPLOIT-DB",
"url": "https://www.exploit-db.com/exploits/45019/"
},
{
"name": "[dev] 20171114 Apache CouchDB CVE-2017-12635 and CVE-2017-12636",
"refsource": "MLIST",
"url": "https://lists.apache.org/thread.html/6c405bf3f8358e6314076be9f48c89a2e0ddf00539906291ebdf0c67@%3Cdev.couchdb.apache.org%3E"
},
{
"name": "GLSA-201711-16",
"refsource": "GENTOO",
"url": "https://security.gentoo.org/glsa/201711-16"
},
{
"name": "[debian-lts-announce] 20180121 [SECURITY] [DLA 1252-1] couchdb security update",
"refsource": "MLIST",
"url": "https://lists.debian.org/debian-lts-announce/2018/01/msg00026.html"
},
{
"name": "101868",
"refsource": "BID",
"url": "http://www.securityfocus.com/bid/101868"
},
{
"name": "https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US\u0026docId=emr_na-hpesbmu03935en_us",
"refsource": "CONFIRM",
"url": "https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US\u0026docId=emr_na-hpesbmu03935en_us"
}
]
}
},
"nvd.nist.gov": {
"configurations": {
"CVE_data_version": "4.0",
"nodes": [
{
"children": [],
"cpe_match": [
{
"cpe23Uri": "cpe:2.3:a:apache:couchdb:*:*:*:*:*:*:*:*",
"cpe_name": [],
"versionEndExcluding": "1.7.0",
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:a:apache:couchdb:2.0.0:*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:a:apache:couchdb:2.0.0:rc1:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:a:apache:couchdb:2.0.0:rc2:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:a:apache:couchdb:2.0.0:rc3:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:a:apache:couchdb:2.0.0:rc4:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
}
],
"operator": "OR"
}
]
},
"cve": {
"CVE_data_meta": {
"ASSIGNER": "security@apache.org",
"ID": "CVE-2017-12635"
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "en",
"value": "Due to differences in the Erlang-based JSON parser and JavaScript-based JSON parser, it is possible in Apache CouchDB before 1.7.0 and 2.x before 2.1.1 to submit _users documents with duplicate keys for \u0027roles\u0027 used for access control within the database, including the special case \u0027_admin\u0027 role, that denotes administrative users. In combination with CVE-2017-12636 (Remote Code Execution), this can be used to give non-admin users access to arbitrary shell commands on the server as the database system user. The JSON parser differences result in behaviour that if two \u0027roles\u0027 keys are available in the JSON, the second one will be used for authorising the document write, but the first \u0027roles\u0027 key is used for subsequent authorization for the newly created user. By design, users can not assign themselves roles. The vulnerability allows non-admin users to give themselves admin privileges."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "en",
"value": "CWE-269"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "[dev] 20171114 Apache CouchDB CVE-2017-12635 and CVE-2017-12636",
"refsource": "MLIST",
"tags": [
"Mailing List",
"Vendor Advisory"
],
"url": "https://lists.apache.org/thread.html/6c405bf3f8358e6314076be9f48c89a2e0ddf00539906291ebdf0c67@%3Cdev.couchdb.apache.org%3E"
},
{
"name": "101868",
"refsource": "BID",
"tags": [
"Third Party Advisory",
"VDB Entry"
],
"url": "http://www.securityfocus.com/bid/101868"
},
{
"name": "GLSA-201711-16",
"refsource": "GENTOO",
"tags": [
"Third Party Advisory"
],
"url": "https://security.gentoo.org/glsa/201711-16"
},
{
"name": "[debian-lts-announce] 20180121 [SECURITY] [DLA 1252-1] couchdb security update",
"refsource": "MLIST",
"tags": [],
"url": "https://lists.debian.org/debian-lts-announce/2018/01/msg00026.html"
},
{
"name": "44498",
"refsource": "EXPLOIT-DB",
"tags": [],
"url": "https://www.exploit-db.com/exploits/44498/"
},
{
"name": "45019",
"refsource": "EXPLOIT-DB",
"tags": [],
"url": "https://www.exploit-db.com/exploits/45019/"
},
{
"name": "https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US\u0026docId=emr_na-hpesbmu03935en_us",
"refsource": "CONFIRM",
"tags": [],
"url": "https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US\u0026docId=emr_na-hpesbmu03935en_us"
}
]
}
},
"impact": {
"baseMetricV2": {
"cvssV2": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "COMPLETE",
"baseScore": 10.0,
"confidentialityImpact": "COMPLETE",
"integrityImpact": "COMPLETE",
"vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C",
"version": "2.0"
},
"exploitabilityScore": 10.0,
"impactScore": 10.0,
"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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.0"
},
"exploitabilityScore": 3.9,
"impactScore": 5.9
}
},
"lastModifiedDate": "2019-10-03T00:03Z",
"publishedDate": "2017-11-14T20:29Z"
}
}
}
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…