JuniperCVELIST:CVE-2024-21597CVE-2024-21597 Junos OS: MX Series: In an AF scenario traffic can bypass configured lo0 firewall filters
5.3 Medium
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
0.0005 Low
EPSS
Percentile
18.0%
An Exposure of Resource to Wrong Sphere vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on MX Series allows an unauthenticated, network-based attacker to bypass the intended access restrictions.
In an Abstracted Fabric (AF) scenario if routing-instances (RI) are configured, specific valid traffic destined to the device can bypass the configured lo0 firewall filters as it’s received in the wrong RI context.
This issue affects Juniper Networks Junos OS on MX Series:
- All versions earlier than 20.4R3-S9;
- 21.2 versions earlier than 21.2R3-S3;
- 21.4 versions earlier than 21.4R3-S5;
- 22.1 versions earlier than 22.1R3;
- 22.2 versions earlier than 22.2R3;
- 22.3 versions earlier than 22.3R2.
CNA Affected
[
{
"defaultStatus": "unaffected",
"platforms": [
"MX Series"
],
"product": "Junos OS",
"vendor": "Juniper Networks",
"versions": [
{
"lessThan": "20.4R3-S9",
"status": "affected",
"version": "0",
"versionType": "semver"
},
{
"lessThan": "21.2R3-S3",
"status": "affected",
"version": "21.2",
"versionType": "semver"
},
{
"lessThan": "21.4R3-S5",
"status": "affected",
"version": "21.4",
"versionType": "semver"
},
{
"lessThan": "22.1R3",
"status": "affected",
"version": "22.1",
"versionType": "semver"
},
{
"lessThan": "22.2R3",
"status": "affected",
"version": "22.2",
"versionType": "semver"
},
{
"lessThan": "22.3R2",
"status": "affected",
"version": "22.3",
"versionType": "semver"
}
]
}
]Related
5.3 Medium
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
0.0005 Low
EPSS
Percentile
18.0%