CVE-2019-0033 : A firewall bypass vulnerability in the proxy ARP service of Juniper Networks Jun

A firewall bypass vulnerability in the proxy ARP service of Juniper Networks Junos OS allows an attacker to cause a high CPU condition leading to a Denial of Service (DoS). This issue affects only IPv4. Affected releases are Juniper Networks Junos OS: 12.1X46 versions above and including 12.1X46-D25 prior to 12.1X46-D71, 12.1X46-D73 on SRX Series; 12.3X48 versions prior to 12.3X48-D50 on SRX Series; 15.1X49 versions prior to 15.1X49-D75 on SRX Series.

Published 2019-04-10 20:29:01

Updated 2019-04-12 16:29:00

Source Juniper Networks, Inc.

View at NVD, CVE.org

Vulnerability category: Denial of service

Products affected by CVE-2019-0033

Juniper » Junos
Versions from including (>=) 15.1x49 and before (<) 15.1x49-d75
cpe:2.3:o:juniper:junos:*:*:*:*:*:*:*:*
Matching versions
When used together with: Juniper » Srx100 » Version: N/A
When used together with: Juniper » Srx110 » Version: N/A
When used together with: Juniper » Srx1400 » Version: N/A
When used together with: Juniper » Srx210 » Version: N/A
When used together with: Juniper » Srx220 » Version: N/A
When used together with: Juniper » Srx240 » Version: N/A
When used together with: Juniper » Srx3400 » Version: N/A
When used together with: Juniper » Srx3600 » Version: N/A
When used together with: Juniper » Srx5400 » Version: N/A
When used together with: Juniper » Srx550 » Version: N/A
When used together with: Juniper » Srx5600 » Version: N/A
When used together with: Juniper » Srx5800 » Version: N/A
When used together with: Juniper » Srx650 » Version: N/A
Juniper » Junos
Versions from including (>=) 12.1x46-d25 and before (<) 12.1x46-d71
cpe:2.3:o:juniper:junos:*:*:*:*:*:*:*:*
Matching versions
When used together with: Juniper » Srx100 » Version: N/A
When used together with: Juniper » Srx110 » Version: N/A
When used together with: Juniper » Srx1400 » Version: N/A
When used together with: Juniper » Srx210 » Version: N/A
When used together with: Juniper » Srx220 » Version: N/A
When used together with: Juniper » Srx240 » Version: N/A
When used together with: Juniper » Srx3400 » Version: N/A
When used together with: Juniper » Srx3600 » Version: N/A
When used together with: Juniper » Srx5400 » Version: N/A
When used together with: Juniper » Srx550 » Version: N/A
When used together with: Juniper » Srx5600 » Version: N/A
When used together with: Juniper » Srx5800 » Version: N/A
When used together with: Juniper » Srx650 » Version: N/A
Juniper » Junos
Versions from including (>=) 12.3x48 and before (<) 12.3x48-d50
cpe:2.3:o:juniper:junos:*:*:*:*:*:*:*:*
Matching versions
When used together with: Juniper » Srx100 » Version: N/A
When used together with: Juniper » Srx110 » Version: N/A
When used together with: Juniper » Srx1400 » Version: N/A
When used together with: Juniper » Srx210 » Version: N/A
When used together with: Juniper » Srx220 » Version: N/A
When used together with: Juniper » Srx240 » Version: N/A
When used together with: Juniper » Srx3400 » Version: N/A
When used together with: Juniper » Srx3600 » Version: N/A
When used together with: Juniper » Srx5400 » Version: N/A
When used together with: Juniper » Srx550 » Version: N/A
When used together with: Juniper » Srx5600 » Version: N/A
When used together with: Juniper » Srx5800 » Version: N/A
When used together with: Juniper » Srx650 » Version: N/A
Juniper » Junos
Versions from including (>=) 12.1x46 and up to, including, (<=) 12.1x46-d10
cpe:2.3:o:juniper:junos:*:*:*:*:*:*:*:*
Matching versions
When used together with: Juniper » Srx100 » Version: N/A
When used together with: Juniper » Srx110 » Version: N/A
When used together with: Juniper » Srx1400 » Version: N/A
When used together with: Juniper » Srx210 » Version: N/A
When used together with: Juniper » Srx220 » Version: N/A
When used together with: Juniper » Srx240 » Version: N/A
When used together with: Juniper » Srx3400 » Version: N/A
When used together with: Juniper » Srx3600 » Version: N/A
When used together with: Juniper » Srx5400 » Version: N/A
When used together with: Juniper » Srx550 » Version: N/A
When used together with: Juniper » Srx5600 » Version: N/A
When used together with: Juniper » Srx5800 » Version: N/A
When used together with: Juniper » Srx650 » Version: N/A

Exploit prediction scoring system (EPSS) score for CVE-2019-0033

EPSS FAQ

0.12%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 45 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2019-0033

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
5.0	MEDIUM	AV:N/AC:L/Au:N/C:N/I:N/A:P	10.0	2.9	NIST
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: None Integrity Impact: None Availability Impact: Partial
7.5	HIGH	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	3.9	3.6	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: None Integrity: None Availability: High
7.5	HIGH	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	3.9	3.6	Juniper Networks, Inc.
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: None Integrity: None Availability: High

CWE ids for CVE-2019-0033

CWE-400 Uncontrolled Resource Consumption

The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.
Assigned by:
- nvd@nist.gov (Primary)
- sirt@juniper.net (Secondary)

References for CVE-2019-0033

http://www.securityfocus.com/bid/107882

Juniper Junos CVE-2019-0033 Denial of Service Vulnerability
https://kb.juniper.net/JSA10922

Juniper Networks - 2019-04 Security Bulletin: SRX Series: A remote attacker may cause a high CPU Denial of Service to the device when proxy ARP is configured. (CVE-2019-0033)
Mitigation;Vendor Advisory

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Vulnerability Details : CVE-2019-0033

Products affected by CVE-2019-0033

Exploit prediction scoring system (EPSS) score for CVE-2019-0033

CVSS scores for CVE-2019-0033

CWE ids for CVE-2019-0033

References for CVE-2019-0033