CVE-2021-3422 (GCVE-0-2021-3422)
Vulnerability from cvelistv5
Published
2022-03-25 18:02
Modified
2024-08-03 16:53
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-125 - Out-of-bounds Read
Summary
The lack of validation of a key-value field in the Splunk-to-Splunk protocol results in a denial-of-service in Splunk Enterprise instances configured to index Universal Forwarder traffic. The vulnerability impacts Splunk Enterprise versions before 7.3.9, 8.0 versions before 8.0.9, and 8.1 versions before 8.1.3. It does not impact Universal Forwarders. When Splunk forwarding is secured using TLS or a Token, the attack requires compromising the certificate or token, or both. Implementation of either or both reduces the severity to Medium.
References
| ► | URL | Tags |
|---|---|---|
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Splunk | Splunk Enterprise |
Version: 8.2 version(s) before 8.2.0 Version: 8.1 version(s) before 8.1.3 Version: 8.0 version(s) before 8.0.9 Version: 7.3 version(s) before 7.3.9 |
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-03T16:53:17.577Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://www.splunk.com/en_us/product-security/announcements/svd-2022-0301.html"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://claroty.com/2022/03/24/blog-research-locking-down-splunk-enterprise-indexers-and-forwarders/"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"product": "Splunk Enterprise",
"vendor": "Splunk",
"versions": [
{
"status": "affected",
"version": "8.2 version(s) before 8.2.0"
},
{
"status": "affected",
"version": "8.1 version(s) before 8.1.3"
},
{
"status": "affected",
"version": "8.0 version(s) before 8.0.9"
},
{
"status": "affected",
"version": "7.3 version(s) before 7.3.9"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "Sharon Brizinov and Tal Keren of Claroty"
}
],
"descriptions": [
{
"lang": "en",
"value": "The lack of validation of a key-value field in the Splunk-to-Splunk protocol results in a denial-of-service in Splunk Enterprise instances configured to index Universal Forwarder traffic. The vulnerability impacts Splunk Enterprise versions before 7.3.9, 8.0 versions before 8.0.9, and 8.1 versions before 8.1.3. It does not impact Universal Forwarders. When Splunk forwarding is secured using TLS or a Token, the attack requires compromising the certificate or token, or both. Implementation of either or both reduces the severity to Medium."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-125",
"description": "CWE-125 Out-of-bounds Read",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2022-03-28T18:52:58",
"orgId": "42b59230-ec95-491e-8425-5a5befa1a469",
"shortName": "Splunk"
},
"references": [
{
"tags": [
"x_refsource_MISC"
],
"url": "https://www.splunk.com/en_us/product-security/announcements/svd-2022-0301.html"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://claroty.com/2022/03/24/blog-research-locking-down-splunk-enterprise-indexers-and-forwarders/"
}
],
"source": {
"advisory": "SVD-2022-0301",
"discovery": "EXTERNAL"
},
"title": "Indexer denial-of-service via malformed S2S request",
"x_generator": {
"engine": "advisoriator"
},
"x_legacyV4Record": {
"CVE_data_meta": {
"ASSIGNER": "prodsec@splunk.com",
"ID": "CVE-2021-3422",
"STATE": "PUBLIC",
"TITLE": "Indexer denial-of-service via malformed S2S request"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "Splunk Enterprise",
"version": {
"version_data": [
{
"version_value": "8.2 version(s) before 8.2.0"
},
{
"version_value": "8.1 version(s) before 8.1.3"
},
{
"version_value": "8.0 version(s) before 8.0.9"
},
{
"version_value": "7.3 version(s) before 7.3.9"
}
]
}
}
]
},
"vendor_name": "Splunk"
}
]
}
},
"credit": [
{
"lang": "eng",
"value": "Sharon Brizinov and Tal Keren of Claroty"
}
],
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "The lack of validation of a key-value field in the Splunk-to-Splunk protocol results in a denial-of-service in Splunk Enterprise instances configured to index Universal Forwarder traffic. The vulnerability impacts Splunk Enterprise versions before 7.3.9, 8.0 versions before 8.0.9, and 8.1 versions before 8.1.3. It does not impact Universal Forwarders. When Splunk forwarding is secured using TLS or a Token, the attack requires compromising the certificate or token, or both. Implementation of either or both reduces the severity to Medium."
}
]
},
"generator": {
"engine": "advisoriator"
},
"impact": {
"cvss": {
"baseScore": "7.5",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
}
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "CWE-125 Out-of-bounds Read"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://www.splunk.com/en_us/product-security/announcements/svd-2022-0301.html",
"refsource": "MISC",
"url": "https://www.splunk.com/en_us/product-security/announcements/svd-2022-0301.html"
},
{
"name": "https://claroty.com/2022/03/24/blog-research-locking-down-splunk-enterprise-indexers-and-forwarders/",
"refsource": "MISC",
"url": "https://claroty.com/2022/03/24/blog-research-locking-down-splunk-enterprise-indexers-and-forwarders/"
}
]
},
"source": {
"advisory": "SVD-2022-0301",
"discovery": "EXTERNAL"
}
}
}
},
"cveMetadata": {
"assignerOrgId": "42b59230-ec95-491e-8425-5a5befa1a469",
"assignerShortName": "Splunk",
"cveId": "CVE-2021-3422",
"datePublished": "2022-03-25T18:02:43",
"dateReserved": "2021-03-03T00:00:00",
"dateUpdated": "2024-08-03T16:53:17.577Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
Loading…
Loading…
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.
- 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.
Loading…
Loading…