JuniperCVELIST:CVE-2021-0269CVE-2021-0269 Junos OS: J-Web can be compromised through reflected client-side HTTP parameter pollution attacks.
8.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
8.6 High
AI Score
Confidence
High
0.003 Low
EPSS
Percentile
68.4%
The improper handling of client-side parameters in J-Web of Juniper Networks Junos OS allows an attacker to perform a number of different malicious actions against a target device when a user is authenticated to J-Web. An attacker may be able to supersede existing parameters, including hardcoded parameters within the HTTP/S session, access and exploit variables, bypass web application firewall rules or input validation mechanisms, and otherwise alter and modify J-Web’s normal behavior. An attacker may be able to transition victims to malicious web services, or exfiltrate sensitive information from otherwise secure web forms. This issue affects: Juniper Networks Junos OS: All versions prior to 17.4R3-S3; 18.1 versions prior to 18.1R3-S12; 18.2 versions prior to 18.2R3-S6; 18.3 versions prior to 18.3R3-S4; 18.4 versions prior to 18.4R3-S6; 19.1 versions prior to 19.1R3-S4; 19.2 versions prior to 19.2R3-S1; 19.3 versions prior to 19.3R3-S1; 19.4 versions prior to 19.4R2-S2, 19.4R3; 20.1 versions prior to 20.1R2; 20.2 versions prior to 20.2R2.
CNA Affected
[
{
"product": "Junos OS",
"vendor": "Juniper Networks",
"versions": [
{
"lessThan": "17.4R3-S3",
"status": "affected",
"version": "unspecified",
"versionType": "custom"
},
{
"lessThan": "18.1R3-S12",
"status": "affected",
"version": "18.1",
"versionType": "custom"
},
{
"lessThan": "18.2R3-S6",
"status": "affected",
"version": "18.2",
"versionType": "custom"
},
{
"lessThan": "18.3R3-S4",
"status": "affected",
"version": "18.3",
"versionType": "custom"
},
{
"lessThan": "18.4R3-S6",
"status": "affected",
"version": "18.4",
"versionType": "custom"
},
{
"lessThan": "19.1R3-S4",
"status": "affected",
"version": "19.1",
"versionType": "custom"
},
{
"lessThan": "19.2R3-S1",
"status": "affected",
"version": "19.2",
"versionType": "custom"
},
{
"lessThan": "19.3R3-S1",
"status": "affected",
"version": "19.3",
"versionType": "custom"
},
{
"lessThan": "19.4R2-S2, 19.4R3",
"status": "affected",
"version": "19.4",
"versionType": "custom"
},
{
"lessThan": "20.1R2",
"status": "affected",
"version": "20.1",
"versionType": "custom"
},
{
"lessThan": "20.2R2",
"status": "affected",
"version": "20.2",
"versionType": "custom"
}
]
}
]References
Related
8.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
8.6 High
AI Score
Confidence
High
0.003 Low
EPSS
Percentile
68.4%