gsd-2020-27736
Vulnerability from gsd
Modified
2023-12-13 01:22
Details
A vulnerability has been identified in APOGEE PXC Compact (BACnet) (All versions < V3.5.5), APOGEE PXC Compact (P2 Ethernet) (All versions < V2.8.20), APOGEE PXC Modular (BACnet) (All versions < V3.5.5), APOGEE PXC Modular (P2 Ethernet) (All versions < V2.8.20), Nucleus NET (All versions), Nucleus ReadyStart V3 (All versions < V2017.02.3), Nucleus ReadyStart V4 (All versions < V4.1.0), Nucleus Source Code (Versions including affected DNS modules), SIMOTICS CONNECT 400 (All versions < V0.5.0.0), TALON TC Compact (BACnet) (All versions < V3.5.5), TALON TC Modular (BACnet) (All versions < V3.5.5). The DNS domain name label parsing functionality does not properly validate the null-terminated name in DNS-responses. The parsing of malformed responses could result in a read past the end of an allocated structure. An attacker with a privileged position in the network could leverage this vulnerability to cause a denial-of-service condition or leak the read memory.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2020-27736",
"description": "A vulnerability has been identified in Nucleus NET (All versions), Nucleus ReadyStart V3 (All versions \u003c V2017.02.3), Nucleus ReadyStart V4 (All versions \u003c V4.1.0), Nucleus Source Code (Versions including affected DNS modules), SIMOTICS CONNECT 400 (All versions \u003c V0.5.0.0). The DNS domain name label parsing functionality does not properly validate the null-terminated name in DNS-responses. The parsing of malformed responses could result in a read past the end of an allocated structure. An attacker with a privileged position in the network could leverage this vulnerability to cause a denial-of-service condition or leak the read memory.",
"id": "GSD-2020-27736"
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"aliases": [
"CVE-2020-27736"
],
"details": "A vulnerability has been identified in APOGEE PXC Compact (BACnet) (All versions \u003c V3.5.5), APOGEE PXC Compact (P2 Ethernet) (All versions \u003c V2.8.20), APOGEE PXC Modular (BACnet) (All versions \u003c V3.5.5), APOGEE PXC Modular (P2 Ethernet) (All versions \u003c V2.8.20), Nucleus NET (All versions), Nucleus ReadyStart V3 (All versions \u003c V2017.02.3), Nucleus ReadyStart V4 (All versions \u003c V4.1.0), Nucleus Source Code (Versions including affected DNS modules), SIMOTICS CONNECT 400 (All versions \u003c V0.5.0.0), TALON TC Compact (BACnet) (All versions \u003c V3.5.5), TALON TC Modular (BACnet) (All versions \u003c V3.5.5). The DNS domain name label parsing functionality does not properly validate the null-terminated name in DNS-responses. The parsing of malformed responses could result in a read past the end of an allocated structure. An attacker with a privileged position in the network could leverage this vulnerability to cause a denial-of-service condition or leak the read memory.",
"id": "GSD-2020-27736",
"modified": "2023-12-13T01:22:11.068179Z",
"schema_version": "1.4.0"
}
},
"namespaces": {
"cve.org": {
"CVE_data_meta": {
"ASSIGNER": "productcert@siemens.com",
"ID": "CVE-2020-27736",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "APOGEE PXC Compact (BACnet)",
"version": {
"version_data": [
{
"version_affected": "=",
"version_value": "All versions \u003c V3.5.5"
}
]
}
},
{
"product_name": "APOGEE PXC Compact (P2 Ethernet)",
"version": {
"version_data": [
{
"version_affected": "=",
"version_value": "All versions \u003c V2.8.20"
}
]
}
},
{
"product_name": "APOGEE PXC Modular (BACnet)",
"version": {
"version_data": [
{
"version_affected": "=",
"version_value": "All versions \u003c V3.5.5"
}
]
}
},
{
"product_name": "APOGEE PXC Modular (P2 Ethernet)",
"version": {
"version_data": [
{
"version_affected": "=",
"version_value": "All versions \u003c V2.8.20"
}
]
}
},
{
"product_name": "Nucleus NET",
"version": {
"version_data": [
{
"version_affected": "=",
"version_value": "All versions"
}
]
}
},
{
"product_name": "Nucleus ReadyStart V3",
"version": {
"version_data": [
{
"version_affected": "=",
"version_value": "All versions \u003c V2017.02.3"
}
]
}
},
{
"product_name": "Nucleus ReadyStart V4",
"version": {
"version_data": [
{
"version_affected": "=",
"version_value": "All versions \u003c V4.1.0"
}
]
}
},
{
"product_name": "Nucleus Source Code",
"version": {
"version_data": [
{
"version_affected": "=",
"version_value": "Versions including affected DNS modules"
}
]
}
},
{
"product_name": "SIMOTICS CONNECT 400",
"version": {
"version_data": [
{
"version_affected": "=",
"version_value": "All versions \u003c V0.5.0.0"
}
]
}
},
{
"product_name": "TALON TC Compact (BACnet)",
"version": {
"version_data": [
{
"version_affected": "=",
"version_value": "All versions \u003c V3.5.5"
}
]
}
},
{
"product_name": "TALON TC Modular (BACnet)",
"version": {
"version_data": [
{
"version_affected": "=",
"version_value": "All versions \u003c V3.5.5"
}
]
}
}
]
},
"vendor_name": "Siemens"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "A vulnerability has been identified in APOGEE PXC Compact (BACnet) (All versions \u003c V3.5.5), APOGEE PXC Compact (P2 Ethernet) (All versions \u003c V2.8.20), APOGEE PXC Modular (BACnet) (All versions \u003c V3.5.5), APOGEE PXC Modular (P2 Ethernet) (All versions \u003c V2.8.20), Nucleus NET (All versions), Nucleus ReadyStart V3 (All versions \u003c V2017.02.3), Nucleus ReadyStart V4 (All versions \u003c V4.1.0), Nucleus Source Code (Versions including affected DNS modules), SIMOTICS CONNECT 400 (All versions \u003c V0.5.0.0), TALON TC Compact (BACnet) (All versions \u003c V3.5.5), TALON TC Modular (BACnet) (All versions \u003c V3.5.5). The DNS domain name label parsing functionality does not properly validate the null-terminated name in DNS-responses. The parsing of malformed responses could result in a read past the end of an allocated structure. An attacker with a privileged position in the network could leverage this vulnerability to cause a denial-of-service condition or leak the read memory."
}
]
},
"impact": {
"cvss": [
{
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H/E:P/RL:O/RC:C",
"version": "3.1"
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"cweId": "CWE-170",
"lang": "eng",
"value": "CWE-170: Improper Null Termination"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://cert-portal.siemens.com/productcert/pdf/ssa-705111.pdf",
"refsource": "MISC",
"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-705111.pdf"
},
{
"name": "https://cert-portal.siemens.com/productcert/pdf/ssa-669158.pdf",
"refsource": "MISC",
"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-669158.pdf"
},
{
"name": "https://cert-portal.siemens.com/productcert/pdf/ssa-180579.pdf",
"refsource": "MISC",
"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-180579.pdf"
}
]
}
},
"nvd.nist.gov": {
"configurations": {
"CVE_data_version": "4.0",
"nodes": [
{
"children": [],
"cpe_match": [
{
"cpe23Uri": "cpe:2.3:a:siemens:nucleus_net:*:*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:a:siemens:nucleus_source_code:-:*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:a:siemens:nucleus_readystart_v3:*:*:*:*:*:*:*:*",
"cpe_name": [],
"versionEndExcluding": "2017.02.3",
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:a:siemens:nucleus_readystart_v4:*:*:*:*:*:*:*:*",
"cpe_name": [],
"versionEndExcluding": "4.1.0",
"vulnerable": true
}
],
"operator": "OR"
},
{
"children": [
{
"children": [],
"cpe_match": [
{
"cpe23Uri": "cpe:2.3:o:siemens:simotics_connect_400_firmware:*:*:*:*:*:*:*:*",
"cpe_name": [],
"versionEndExcluding": "0.5.0.0",
"vulnerable": true
}
],
"operator": "OR"
},
{
"children": [],
"cpe_match": [
{
"cpe23Uri": "cpe:2.3:h:siemens:simotics_connect_400:-:*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": false
}
],
"operator": "OR"
}
],
"cpe_match": [],
"operator": "AND"
}
]
},
"cve": {
"CVE_data_meta": {
"ASSIGNER": "productcert@siemens.com",
"ID": "CVE-2020-27736"
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "en",
"value": "A vulnerability has been identified in APOGEE PXC Compact (BACnet) (All versions \u003c V3.5.5), APOGEE PXC Compact (P2 Ethernet) (All versions \u003c V2.8.20), APOGEE PXC Modular (BACnet) (All versions \u003c V3.5.5), APOGEE PXC Modular (P2 Ethernet) (All versions \u003c V2.8.20), Nucleus NET (All versions), Nucleus ReadyStart V3 (All versions \u003c V2017.02.3), Nucleus ReadyStart V4 (All versions \u003c V4.1.0), Nucleus Source Code (Versions including affected DNS modules), SIMOTICS CONNECT 400 (All versions \u003c V0.5.0.0), TALON TC Compact (BACnet) (All versions \u003c V3.5.5), TALON TC Modular (BACnet) (All versions \u003c V3.5.5). The DNS domain name label parsing functionality does not properly validate the null-terminated name in DNS-responses. The parsing of malformed responses could result in a read past the end of an allocated structure. An attacker with a privileged position in the network could leverage this vulnerability to cause a denial-of-service condition or leak the read memory."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "en",
"value": "CWE-125"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://cert-portal.siemens.com/productcert/pdf/ssa-705111.pdf",
"refsource": "MISC",
"tags": [
"Patch",
"Vendor Advisory"
],
"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-705111.pdf"
},
{
"name": "https://cert-portal.siemens.com/productcert/pdf/ssa-669158.pdf",
"refsource": "MISC",
"tags": [
"Patch",
"Vendor Advisory"
],
"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-669158.pdf"
},
{
"name": "https://cert-portal.siemens.com/productcert/pdf/ssa-180579.pdf",
"refsource": "MISC",
"tags": [],
"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-180579.pdf"
}
]
}
},
"impact": {
"baseMetricV2": {
"acInsufInfo": false,
"cvssV2": {
"accessComplexity": "MEDIUM",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 5.8,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "NONE",
"vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:P",
"version": "2.0"
},
"exploitabilityScore": 8.6,
"impactScore": 4.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"severity": "MEDIUM",
"userInteractionRequired": false
},
"baseMetricV3": {
"cvssV3": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 2.2,
"impactScore": 4.2
}
},
"lastModifiedDate": "2023-08-08T10:15Z",
"publishedDate": "2021-04-22T21:15Z"
}
}
}
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.