gsd-2018-12556
Vulnerability from gsd
Modified
2023-12-13 01:22
Details
The signature verification routine in install.sh in yarnpkg/website through 2018-06-05 only verifies that the yarn release is signed by any (arbitrary) key in the local keyring of the user, and does not pin the signature to the yarn release key, which allows remote attackers to sign tampered yarn release packages with their own key.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2018-12556",
"description": "The signature verification routine in install.sh in yarnpkg/website through 2018-06-05 only verifies that the yarn release is signed by any (arbitrary) key in the local keyring of the user, and does not pin the signature to the yarn release key, which allows remote attackers to sign tampered yarn release packages with their own key.",
"id": "GSD-2018-12556",
"references": [
"https://packetstormsecurity.com/files/cve/CVE-2018-12556"
]
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"aliases": [
"CVE-2018-12556"
],
"details": "The signature verification routine in install.sh in yarnpkg/website through 2018-06-05 only verifies that the yarn release is signed by any (arbitrary) key in the local keyring of the user, and does not pin the signature to the yarn release key, which allows remote attackers to sign tampered yarn release packages with their own key.",
"id": "GSD-2018-12556",
"modified": "2023-12-13T01:22:30.193492Z",
"schema_version": "1.4.0"
}
},
"namespaces": {
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"ASSIGNER": "cve@mitre.org",
"ID": "CVE-2018-12556",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "n/a",
"version": {
"version_data": [
{
"version_value": "n/a"
}
]
}
}
]
},
"vendor_name": "n/a"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "The signature verification routine in install.sh in yarnpkg/website through 2018-06-05 only verifies that the yarn release is signed by any (arbitrary) key in the local keyring of the user, and does not pin the signature to the yarn release key, which allows remote attackers to sign tampered yarn release packages with their own key."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "n/a"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://github.com/yarnpkg/website/commits/master",
"refsource": "MISC",
"url": "https://github.com/yarnpkg/website/commits/master"
},
{
"name": "20190430 OpenPGP and S/MIME signature forgery attacks in multiple email clients",
"refsource": "FULLDISC",
"url": "http://seclists.org/fulldisclosure/2019/Apr/38"
},
{
"name": "http://packetstormsecurity.com/files/152703/Johnny-You-Are-Fired.html",
"refsource": "MISC",
"url": "http://packetstormsecurity.com/files/152703/Johnny-You-Are-Fired.html"
},
{
"name": "[oss-security] 20190430 Spoofing OpenPGP and S/MIME Signatures in Emails (multiple clients)",
"refsource": "MLIST",
"url": "https://www.openwall.com/lists/oss-security/2019/04/30/4"
},
{
"name": "https://github.com/RUB-NDS/Johnny-You-Are-Fired",
"refsource": "MISC",
"url": "https://github.com/RUB-NDS/Johnny-You-Are-Fired"
},
{
"name": "https://github.com/RUB-NDS/Johnny-You-Are-Fired/blob/master/paper/johnny-fired.pdf",
"refsource": "MISC",
"url": "https://github.com/RUB-NDS/Johnny-You-Are-Fired/blob/master/paper/johnny-fired.pdf"
}
]
}
},
"nvd.nist.gov": {
"configurations": {
"CVE_data_version": "4.0",
"nodes": [
{
"children": [],
"cpe_match": [
{
"cpe23Uri": "cpe:2.3:a:yarnpkg:website:*:*:*:*:*:*:*:*",
"cpe_name": [],
"versionEndIncluding": "2018-06-05",
"vulnerable": true
}
],
"operator": "OR"
}
]
},
"cve": {
"CVE_data_meta": {
"ASSIGNER": "cve@mitre.org",
"ID": "CVE-2018-12556"
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
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"value": "The signature verification routine in install.sh in yarnpkg/website through 2018-06-05 only verifies that the yarn release is signed by any (arbitrary) key in the local keyring of the user, and does not pin the signature to the yarn release key, which allows remote attackers to sign tampered yarn release packages with their own key."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "en",
"value": "CWE-347"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "[oss-security] 20190430 Spoofing OpenPGP and S/MIME Signatures in Emails (multiple clients)",
"refsource": "MLIST",
"tags": [
"Mailing List",
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],
"url": "https://www.openwall.com/lists/oss-security/2019/04/30/4"
},
{
"name": "https://github.com/yarnpkg/website/commits/master",
"refsource": "MISC",
"tags": [
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],
"url": "https://github.com/yarnpkg/website/commits/master"
},
{
"name": "https://github.com/RUB-NDS/Johnny-You-Are-Fired/blob/master/paper/johnny-fired.pdf",
"refsource": "MISC",
"tags": [
"Third Party Advisory"
],
"url": "https://github.com/RUB-NDS/Johnny-You-Are-Fired/blob/master/paper/johnny-fired.pdf"
},
{
"name": "https://github.com/RUB-NDS/Johnny-You-Are-Fired",
"refsource": "MISC",
"tags": [
"Third Party Advisory"
],
"url": "https://github.com/RUB-NDS/Johnny-You-Are-Fired"
},
{
"name": "20190430 OpenPGP and S/MIME signature forgery attacks in multiple email clients",
"refsource": "FULLDISC",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"url": "http://seclists.org/fulldisclosure/2019/Apr/38"
},
{
"name": "http://packetstormsecurity.com/files/152703/Johnny-You-Are-Fired.html",
"refsource": "MISC",
"tags": [
"VDB Entry",
"Third Party Advisory"
],
"url": "http://packetstormsecurity.com/files/152703/Johnny-You-Are-Fired.html"
}
]
}
},
"impact": {
"baseMetricV2": {
"acInsufInfo": false,
"cvssV2": {
"accessComplexity": "MEDIUM",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "NONE",
"baseScore": 4.3,
"confidentialityImpact": "NONE",
"integrityImpact": "PARTIAL",
"vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
"version": "2.0"
},
"exploitabilityScore": 8.6,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"severity": "MEDIUM",
"userInteractionRequired": false
},
"baseMetricV3": {
"cvssV3": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.9,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N",
"version": "3.0"
},
"exploitabilityScore": 2.2,
"impactScore": 3.6
}
},
"lastModifiedDate": "2019-05-21T14:03Z",
"publishedDate": "2019-05-16T17:29Z"
}
}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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