Detections
Analytics
Juniper Junos OS Vulnerability (JSA11121)
high Nessus Plugin ID 178663
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Synopsis
The remote device is missing a vendor-supplied security patch.Description
The version of Junos OS installed on the remote host is affected by a vulnerability as referenced in the JSA11121 advisory.- On Juniper Networks Junos OS Evolved devices, receipt of a specific IPv6 packet may cause an established IPv6 BGP session to terminate, creating a Denial of Service (DoS) condition. Continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition. This issue does not affect IPv4 BGP sessions. This issue affects IBGP or EBGP peer sessions with IPv6. This issue affects:
Juniper Networks Junos OS Evolved: 19.4 versions prior to 19.4R2-S3-EVO; 20.1 versions prior to 20.1R2-S3-EVO; 20.2 versions prior to 20.2R2-S1-EVO; 20.3 versions prior to 20.3R2-EVO. This issue does not affect Juniper Networks Junos OS releases. (CVE-2021-0226)
Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.
Solution
Apply the relevant Junos software release referenced in Juniper advisory JSA11121See Also
Plugin Details
Severity: High
ID: 178663
File Name: juniper_jsa11121.nasl
Version: 1.0
Type: combined
Family: Junos Local Security Checks
Published: 7/20/2023
Updated: 7/20/2023
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Low
Score: 3.6
CVSS v2
Risk Factor: Medium
Base Score: 5
Temporal Score: 3.7
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSS Score Source: CVE-2021-0226
CVSS v3
Risk Factor: High
Base Score: 7.5
Temporal Score: 6.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: cpe:/o:juniper:junos
Required KB Items: Host/Juniper/JUNOS/Version
Exploit Ease: No known exploits are available
Patch Publication Date: 4/14/2021
Vulnerability Publication Date: 4/14/2021
Reference Information
CVE: CVE-2021-0226
JSA: JSA11121