GSD-2016-6210
Vulnerability from gsd - Updated: 2023-12-13 01:21Details
sshd in OpenSSH before 7.3, when SHA256 or SHA512 are used for user password hashing, uses BLOWFISH hashing on a static password when the username does not exist, which allows remote attackers to enumerate users by leveraging the timing difference between responses when a large password is provided.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2016-6210",
"description": "sshd in OpenSSH before 7.3, when SHA256 or SHA512 are used for user password hashing, uses BLOWFISH hashing on a static password when the username does not exist, which allows remote attackers to enumerate users by leveraging the timing difference between responses when a large password is provided.",
"id": "GSD-2016-6210",
"references": [
"https://www.suse.com/security/cve/CVE-2016-6210.html",
"https://www.debian.org/security/2016/dsa-3626",
"https://access.redhat.com/errata/RHSA-2017:2563",
"https://access.redhat.com/errata/RHSA-2017:2029",
"https://ubuntu.com/security/CVE-2016-6210",
"https://advisories.mageia.org/CVE-2016-6210.html",
"https://alas.aws.amazon.com/cve/html/CVE-2016-6210.html",
"https://linux.oracle.com/cve/CVE-2016-6210.html",
"https://packetstormsecurity.com/files/cve/CVE-2016-6210"
]
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"aliases": [
"CVE-2016-6210"
],
"details": "sshd in OpenSSH before 7.3, when SHA256 or SHA512 are used for user password hashing, uses BLOWFISH hashing on a static password when the username does not exist, which allows remote attackers to enumerate users by leveraging the timing difference between responses when a large password is provided.",
"id": "GSD-2016-6210",
"modified": "2023-12-13T01:21:23.202632Z",
"schema_version": "1.4.0"
}
},
"namespaces": {
"cve.org": {
"CVE_data_meta": {
"ASSIGNER": "cve@mitre.org",
"ID": "CVE-2016-6210",
"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": "sshd in OpenSSH before 7.3, when SHA256 or SHA512 are used for user password hashing, uses BLOWFISH hashing on a static password when the username does not exist, which allows remote attackers to enumerate users by leveraging the timing difference between responses when a large password is provided."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "n/a"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "RHSA-2017:2563",
"refsource": "REDHAT",
"url": "https://access.redhat.com/errata/RHSA-2017:2563"
},
{
"name": "1036319",
"refsource": "SECTRACK",
"url": "http://www.securitytracker.com/id/1036319"
},
{
"name": "20160714 opensshd - user enumeration",
"refsource": "FULLDISC",
"url": "http://seclists.org/fulldisclosure/2016/Jul/51"
},
{
"name": "DSA-3626",
"refsource": "DEBIAN",
"url": "http://www.debian.org/security/2016/dsa-3626"
},
{
"name": "40136",
"refsource": "EXPLOIT-DB",
"url": "https://www.exploit-db.com/exploits/40136/"
},
{
"name": "40113",
"refsource": "EXPLOIT-DB",
"url": "https://www.exploit-db.com/exploits/40113/"
},
{
"name": "https://www.openssh.com/txt/release-7.3",
"refsource": "CONFIRM",
"url": "https://www.openssh.com/txt/release-7.3"
},
{
"name": "GLSA-201612-18",
"refsource": "GENTOO",
"url": "https://security.gentoo.org/glsa/201612-18"
},
{
"name": "RHSA-2017:2029",
"refsource": "REDHAT",
"url": "https://access.redhat.com/errata/RHSA-2017:2029"
},
{
"name": "91812",
"refsource": "BID",
"url": "http://www.securityfocus.com/bid/91812"
},
{
"name": "https://security.netapp.com/advisory/ntap-20190206-0001/",
"refsource": "CONFIRM",
"url": "https://security.netapp.com/advisory/ntap-20190206-0001/"
},
{
"name": "https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf",
"refsource": "CONFIRM",
"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf"
}
]
}
},
"nvd.nist.gov": {
"configurations": {
"CVE_data_version": "4.0",
"nodes": [
{
"children": [],
"cpe_match": [
{
"cpe23Uri": "cpe:2.3:a:openbsd:openssh:*:p2:*:*:*:*:*:*",
"cpe_name": [],
"versionEndIncluding": "7.2",
"vulnerable": true
}
],
"operator": "OR"
}
]
},
"cve": {
"CVE_data_meta": {
"ASSIGNER": "cve@mitre.org",
"ID": "CVE-2016-6210"
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "en",
"value": "sshd in OpenSSH before 7.3, when SHA256 or SHA512 are used for user password hashing, uses BLOWFISH hashing on a static password when the username does not exist, which allows remote attackers to enumerate users by leveraging the timing difference between responses when a large password is provided."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "en",
"value": "CWE-200"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://www.openssh.com/txt/release-7.3",
"refsource": "CONFIRM",
"tags": [
"Release Notes",
"Vendor Advisory"
],
"url": "https://www.openssh.com/txt/release-7.3"
},
{
"name": "20160714 opensshd - user enumeration",
"refsource": "FULLDISC",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"url": "http://seclists.org/fulldisclosure/2016/Jul/51"
},
{
"name": "91812",
"refsource": "BID",
"tags": [
"VDB Entry",
"Third Party Advisory"
],
"url": "http://www.securityfocus.com/bid/91812"
},
{
"name": "GLSA-201612-18",
"refsource": "GENTOO",
"tags": [],
"url": "https://security.gentoo.org/glsa/201612-18"
},
{
"name": "1036319",
"refsource": "SECTRACK",
"tags": [],
"url": "http://www.securitytracker.com/id/1036319"
},
{
"name": "40136",
"refsource": "EXPLOIT-DB",
"tags": [],
"url": "https://www.exploit-db.com/exploits/40136/"
},
{
"name": "40113",
"refsource": "EXPLOIT-DB",
"tags": [],
"url": "https://www.exploit-db.com/exploits/40113/"
},
{
"name": "DSA-3626",
"refsource": "DEBIAN",
"tags": [],
"url": "http://www.debian.org/security/2016/dsa-3626"
},
{
"name": "RHSA-2017:2563",
"refsource": "REDHAT",
"tags": [],
"url": "https://access.redhat.com/errata/RHSA-2017:2563"
},
{
"name": "RHSA-2017:2029",
"refsource": "REDHAT",
"tags": [],
"url": "https://access.redhat.com/errata/RHSA-2017:2029"
},
{
"name": "https://security.netapp.com/advisory/ntap-20190206-0001/",
"refsource": "CONFIRM",
"tags": [],
"url": "https://security.netapp.com/advisory/ntap-20190206-0001/"
},
{
"name": "https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf",
"refsource": "CONFIRM",
"tags": [],
"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf"
}
]
}
},
"impact": {
"baseMetricV2": {
"cvssV2": {
"accessComplexity": "MEDIUM",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "NONE",
"baseScore": 4.3,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "NONE",
"vectorString": "AV:N/AC:M/Au:N/C:P/I:N/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": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
"version": "3.0"
},
"exploitabilityScore": 2.2,
"impactScore": 3.6
}
},
"lastModifiedDate": "2022-12-13T12:15Z",
"publishedDate": "2017-02-13T17:59Z"
}
}
}
Loading…
Loading…
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
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…
The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Loading…
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
Loading…