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cvelist/2021/31xxx/CVE-2021-31360.json
Anthony Singleton 938debeed0 Revert "November 2021 Patch Tuesday" 
This reverts commit df296d9e014bf68ef22c0583c98da3fbe42ea316.
2021-11-17 15:47:33 -05:00

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{
"CVE_data_meta": {
"ASSIGNER": "sirt@juniper.net",
"DATE_PUBLIC": "2021-10-13T16:00:00.000Z",
"ID": "CVE-2021-31360",
"STATE": "PUBLIC",
"TITLE": "Junos OS and Junos OS Evolved: Denial of Service vulnerability in local file processing"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "Junos OS",
"version": {
"version_data": [
{
"version_affected": "<",
"version_name": "15.1",
"version_value": "15.1R7-S10"
},
{
"version_affected": "<",
"version_name": "17.4",
"version_value": "17.4R3-S5"
},
{
"version_affected": "<",
"version_name": "18.3",
"version_value": "18.3R3-S5"
},
{
"version_affected": "<",
"version_name": "18.4",
"version_value": "18.4R3-S9"
},
{
"version_affected": "<",
"version_name": "19.1",
"version_value": "19.1R3-S6"
},
{
"version_affected": "<",
"version_name": "19.2",
"version_value": "19.2R1-S7, 19.2R3-S3"
},
{
"version_affected": "<",
"version_name": "19.3",
"version_value": "19.3R2-S6, 19.3R3-S3"
},
{
"version_affected": "<",
"version_name": "19.4",
"version_value": "19.4R3-S6"
},
{
"version_affected": "<",
"version_name": "20.1",
"version_value": "20.1R2-S2, 20.1R3-S1"
},
{
"version_affected": "<",
"version_name": "20.2",
"version_value": "20.2R3-S2"
},
{
"version_affected": "<",
"version_name": "20.3",
"version_value": "20.3R3"
},
{
"version_affected": "<",
"version_name": "20.4",
"version_value": "20.4R2-S1, 20.4R3"
},
{
"version_affected": "<",
"version_name": "21.1",
"version_value": "21.1R1-S1, 21.1R2"
}
]
}
},
{
"product_name": "Junos OS Evolved",
"version": {
"version_data": [
{
"version_affected": "<",
"version_value": "20.4R2-S3-EVO"
},
{
"version_affected": ">=",
"version_name": "21.1",
"version_value": "21.1R1-EVO"
}
]
}
}
]
},
"vendor_name": "Juniper Networks"
}
]
}
},
"configuration": [
{
"lang": "eng",
"value": "There are several configuration options that enable DHCP service. For example:\n\n [edit interfaces ... family inet dhcp]\n\n [edit system processes dhcp-service]\n\n [edit forwarding-options dhcp-relay]"
}
],
"credit": [
{
"lang": "eng",
"value": "Juniper SIRT would like to acknowledge and thank awxylitol for responsibly reporting this vulnerability."
}
],
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "An improper privilege management vulnerability in the Juniper Networks Junos OS and Junos OS Evolved command-line interpreter (CLI) allows a low-privileged user to overwrite local files as root, possibly leading to a system integrity issue or Denial of Service (DoS). Depending on the files overwritten, exploitation of this vulnerability could lead to a sustained Denial of Service (DoS) condition, requiring manual user intervention to recover. Systems are only vulnerable if jdhcpd is running, which can be confirmed via the 'show system processes' command. For example: root@host# run show system processes extensive | match dhcp 26537 root -16 0 97568K 13692K RUN 0 0:01 3.71% jdhcpd This issue affects: Juniper Networks Junos OS: All versions, including the following supported releases: 15.1 versions prior to 15.1R7-S10; 17.4 versions prior to 17.4R3-S5; 18.3 versions prior to 18.3R3-S5; 18.4 versions prior to 18.4R3-S9; 19.1 versions prior to 19.1R3-S6; 19.2 versions prior to 19.2R1-S7, 19.2R3-S3; 19.3 versions prior to 19.3R2-S6, 19.3R3-S3; 19.4 versions prior to 19.4R3-S6; 20.1 versions prior to 20.1R2-S2, 20.1R3-S1; 20.2 versions prior to 20.2R3-S2; 20.3 versions prior to 20.3R3; 20.4 versions prior to 20.4R2-S1, 20.4R3; 21.1 versions prior to 21.1R1-S1, 21.1R2. Juniper Networks Junos OS Evolved: All versions prior to 20.4R2-S3-EVO; All versions of 21.1-EVO."
}
]
},
"exploit": [
{
"lang": "eng",
"value": "Juniper SIRT is not aware of any malicious exploitation of this vulnerability."
}
],
"generator": {
"engine": "Vulnogram 0.0.9"
},
"impact": {
"cvss": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.1,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H",
"version": "3.1"
}
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "CWE-269 Improper Privilege Management"
}
]
},
{
"description": [
{
"lang": "eng",
"value": "CWE-20 Improper Input Validation"
}
]
},
{
"description": [
{
"lang": "eng",
"value": "Denial of Service (DoS)"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://kb.juniper.net/JSA11222",
"refsource": "CONFIRM",
"url": "https://kb.juniper.net/JSA11222"
}
]
},
"solution": [
{
"lang": "eng",
"value": "The following software releases have been updated to resolve this specific issue: \n\nJunos OS 15.1R7-S10, 17.4R3-S5, 18.3R3-S5, 18.4R3-S9, 19.1R3-S6, 19.2R1-S7, 19.2R3-S3, 19.3R2-S6, 19.3R3-S3, 19.4R3-S6, 20.1R2-S2, 20.1R3-S1, 20.2R3-S2, 20.3R3, 20.4R2-S1, 20.4R3, 21.1R1-S1, 21.1R2, 21.1R3, 21.2R1, and all subsequent releases.\n\nJunos OS Evolved 20.4R2-S3-EVO, 21.2R1-EVO, and all subsequent releases.\n"
}
],
"source": {
"advisory": "JSA11222",
"defect": [
"1568654"
],
"discovery": "EXTERNAL"
},
"work_around": [
{
"lang": "eng",
"value": "Use access lists or firewall filters to limit access to the device via CLI only from trusted hosts and from trusted administrators."
}
]
}
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