VDB-148519 · CVE-2019-20372 · GCVE-0-2019-20372

nginx up to 1.17.6 Error Page HTTP Request request smuggling

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.
6.2	$0-$5k	0.00

Summaryinfo

A vulnerability was found in nginx up to 1.17.6. It has been rated as critical. This affects an unknown function of the component Error Page Handler. This manipulation as part of HTTP Request causes request smuggling. The identification of this vulnerability is CVE-2019-20372. It is possible to initiate the attack remotely. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as critical was found in nginx up to 1.17.6 (Web Server). Affected by this vulnerability is an unknown function of the component Error Page Handler. The manipulation as part of a HTTP Request leads to a request smuggling vulnerability. The CWE definition for the vulnerability is CWE-444. The product acts as an intermediary HTTP agent (such as a proxy or firewall) in the data flow between two entities such as a client and server, but it does not interpret malformed HTTP requests or responses in ways that are consistent with how the messages will be processed by those entities that are at the ultimate destination. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

NGINX before 1.17.7, with certain error_page configurations, allows HTTP request smuggling, as demonstrated by the ability of an attacker to read unauthorized web pages in environments where NGINX is being fronted by a load balancer.

The weakness was shared 01/09/2020. This vulnerability is known as CVE-2019-20372 since 01/09/2020. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available.

Upgrading to version 1.17.7 eliminates this vulnerability.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Web Server

Name

nginx

Version

License

open-source

Website

Product: https://github.com/nginx/nginx/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.2

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.3
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Request smuggling
CWE: CWE-444
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

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: 🔍

Upgrade: nginx 1.17.7
Patch: github.com

Timelineinfo

01/09/2020 🔍
01/09/2020 +0 days 🔍
01/10/2020 +1 days 🔍
03/20/2024 +1531 days 🔍

Sourcesinfo

Product: github.com

Advisory: c1be55f97211d38b69ac0c2027e6812ab8b1b94e
Status: Not defined

CVE: CVE-2019-20372 (🔍)
GCVE (CVE): GCVE-0-2019-20372
GCVE (VulDB): GCVE-100-148519

Entryinfo

Created: 01/10/2020 08:10
Updated: 03/20/2024 14:00
Changes: 01/10/2020 08:10 (37), 01/10/2020 08:15 (18), 03/20/2024 13:55 (20), 03/20/2024 14:00 (3)
Complete: 🔍
Cache ID: 216::103