VDB-173755 · CVE-2021-0246 · JSA11139

Juniper Junos OS on SRX Network Traffic SPC2/SPC3 default permission

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
4.0	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Juniper Junos OS on SRX. Affected is an unknown function of the file SPC2/SPC3 of the component Network Traffic Handler. This manipulation causes default permission. This vulnerability is registered as CVE-2021-0246. The attack needs to be launched locally. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in Juniper Junos OS on SRX (Router Operating System) (affected version unknown). Affected by this vulnerability is an unknown functionality of the file SPC2/SPC3 of the component Network Traffic Handler. The manipulation with an unknown input leads to a default permission vulnerability. The CWE definition for the vulnerability is CWE-276. During installation, installed file permissions are set to allow anyone to modify those files. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was published 04/23/2021 as JSA11139. It is possible to read the advisory at kb.juniper.net. This vulnerability is known as CVE-2021-0246. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1222 according to MITRE ATT&CK.

Upgrading eliminates this vulnerability.

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Productinfo

Type

Router Operating System

Vendor

Juniper

Name

Junos OS

License

commercial

Website

Vendor: https://www.juniper.net/

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.2
VulDB Meta Temp Score: 4.0

VulDB Base Score: 4.2
VulDB Temp Score: 4.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Default permission
CWE: CWE-276 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

10/27/2020 🔍
04/23/2021 +177 days 🔍
04/23/2021 +0 days 🔍
04/29/2021 +6 days 🔍

Sourcesinfo

Vendor: juniper.net

Advisory: JSA11139
Status: Confirmed

CVE: CVE-2021-0246 (🔍)
GCVE (CVE): GCVE-0-2021-0246
GCVE (VulDB): GCVE-100-173755

Entryinfo

Created: 04/23/2021 07:37
Updated: 04/29/2021 08:42
Changes: 04/23/2021 07:37 (40), 04/27/2021 12:15 (5), 04/27/2021 12:22 (1), 04/29/2021 08:42 (7)
Complete: 🔍
Cache ID: 216::103