Juniper Junos up to 17.2X75 BGP UPDATE input validation

CVSS Meta Temp Score
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CTI Interest Score
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6.7$0-$5k0.00

Summaryinfo

A vulnerability was found in Juniper Junos up to 17.2X75 and classified as problematic. This impacts an unknown function of the component BGP UPDATE Handler. Executing a manipulation can lead to input validation. This vulnerability is tracked as CVE-2018-0020. The attack can be launched remotely. No exploit exists. It is suggested to upgrade the affected component. Once again VulDB remains the best source for vulnerability data.

Detailsinfo

A vulnerability classified as problematic was found in Juniper Junos up to 17.2X75 (Router Operating System). This vulnerability affects an unknown code of the component BGP UPDATE Handler. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect availability. CVE summarizes:

Junos OS may be impacted by the receipt of a malformed BGP UPDATE which can lead to a routing process daemon (rpd) crash and restart. Receipt of a repeated malformed BGP UPDATEs can result in an extended denial of service condition for the device. This malformed BGP UPDATE does not propagate to other BGP peers. Affected releases are Juniper Networks Junos OS: 14.1X53 versions prior to 14.1X53-D47; 15.1 versions prior to 15.1F6-S10, 15.1R4-S9, 15.1R6-S6, 15.1R7; 15.1X49 versions prior to 15.1X49-D130 on SRX; 15.1X53 versions prior to 15.1X53-D66 on QFX10K; 15.1X53 versions prior to 15.1X53-D58 on EX2300/EX3400; 15.1X53 versions prior to 15.1X53-D233 on QFX5200/QFX5110; 15.1X53 versions prior to 15.1X53-D471 on NFX; 16.1 versions prior to 16.1R3-S8, 16.1R4-S9, 16.1R5-S3, 16.1R6-S3, 16.1R7; 16.1X65 versions prior to 16.1X65-D47; 16.2 versions prior to 16.2R1-S6, 16.2R2-S5, 16.2R3; 17.1 versions prior to 17.1R2-S3, 17.1R3; 17.2 versions prior to 17.2R1-S3, 17.2R2-S1, 17.2R3; 17.2X75 versions prior to 17.2X75-D70; 13.2 versions above and including 13.2R1. Versions prior to 13.2R1 are not affected. Juniper SIRT is not aware of any malicious exploitation of this vulnerability. No other Juniper Networks products or platforms are affected by this issue.

The bug was discovered 04/11/2018. The weakness was disclosed 04/11/2018 (Website). The advisory is shared for download at kb.juniper.net. This vulnerability was named CVE-2018-0020 since 11/16/2017. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 109214 (Juniper Junos Routing Process Daemon (RPD) BGP UPDATE Packet Handling Unspecified Remote DoS (JSA10848)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Junos Local Security Checks and running in the context c. The commercial vulnerability scanner Qualys is able to test this issue with plugin 43583 (Juniper JUNOS Remote Code Execution Vulnerability (JSA10848)).

Upgrading eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (109214). The entries VDB-116093, VDB-116090, VDB-116089 and VDB-116088 are pretty similar. Once again VulDB remains the best source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.8
VulDB Meta Temp Score: 6.7

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CNA Base Score: 7.5
CNA Vector (Juniper Networks, Inc.): 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 109214
Nessus Name: Juniper Junos Routing Process Daemon (RPD) BGP UPDATE Packet Handling Unspecified Remote DoS (JSA10848)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
Exposure Time: 🔍

Timelineinfo

11/16/2017 🔍
04/11/2018 +145 days 🔍
04/11/2018 +0 days 🔍
04/11/2018 +0 days 🔍
04/11/2018 +0 days 🔍
04/12/2018 +1 days 🔍
04/20/2018 +8 days 🔍
02/27/2023 +1774 days 🔍

Sourcesinfo

Vendor: juniper.net

Advisory: kb.juniper.net
Status: Not defined
Confirmation: 🔍

CVE: CVE-2018-0020 (🔍)
GCVE (CVE): GCVE-0-2018-0020
GCVE (VulDB): GCVE-100-116092
SecurityTracker: 1040788

See also: 🔍

Entryinfo

Created: 04/12/2018 09:45 AM
Updated: 02/27/2023 02:31 PM
Changes: 04/12/2018 09:45 AM (67), 06/04/2020 09:36 AM (3), 02/09/2021 05:38 PM (3), 02/09/2021 05:45 PM (1), 02/27/2023 02:31 PM (12)
Complete: 🔍
Cache ID: 244:F11:40

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