CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
AI Score
Confidence
High
EPSS
Percentile
83.9%
A Missing Authentication for Critical Function vulnerability in Juniper Networks Junos OS on EX Series allows an unauthenticated, network-based attacker to cause limited impact to the file system integrity.
With a specific request to installAppPackage.php that doesn’t require authentication an attacker is able to upload arbitrary files via J-Web, leading to a loss of
integrity
for a certain
part of the file system, which may allow chaining to other vulnerabilities.
This issue affects Juniper Networks Junos OS on EX Series:
prior to
21.3R3-S5;
prior to
21.4R3-S4;
prior to
22.1R3-S3;
prior to
22.2R3-S1;
prior to
22.3R2-S2, 22.3R3;
prior to
22.4R2-S1, 22.4R3.
[
{
"defaultStatus": "unaffected",
"platforms": [
"EX Series"
],
"product": "Junos OS",
"vendor": "Juniper Networks",
"versions": [
{
"lessThan": "20.4R3-S8",
"status": "affected",
"version": "0",
"versionType": "semver"
},
{
"lessThan": "21.1*",
"status": "affected",
"version": "21.1",
"versionType": "semver"
},
{
"lessThan": "21.2R3-S6",
"status": "affected",
"version": "21.2",
"versionType": "semver"
},
{
"lessThan": "21.3R3-S5",
"status": "affected",
"version": "21.3",
"versionType": "semver"
},
{
"lessThan": "21.4R3-S4",
"status": "affected",
"version": "21.4",
"versionType": "semver"
},
{
"lessThan": "22.1R3-S3",
"status": "affected",
"version": "22.1",
"versionType": "semver"
},
{
"lessThan": "22.2R3-S1",
"status": "affected",
"version": "22.2",
"versionType": "semver"
},
{
"lessThan": "22.3R2-S2, 22.3R3",
"status": "affected",
"version": "22.3",
"versionType": "semver"
},
{
"lessThan": "22.4R2-S1, 22.4R3",
"status": "affected",
"version": "22.4",
"versionType": "semver"
}
]
}
]
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
AI Score
Confidence
High
EPSS
Percentile
83.9%