CVE-2019-20444Suited to automated attack · CISA

Vulnerability in N/a

CVSS score

9.1

EPSS probability

%8.9

Risk score

0.8

Published

6 y ago

Overview Public Exploits (0)Newsroom Vulnerability Timeline

Official patch verified

Etkilenen ürün ve sürüm için yayımlanan güvenlik güncellemesini uygulayın.

Impact on My Inventory

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Vulnerability description

DayBreach CVE AI Research

CVE-2019-20444 has vendor, distribution, patch and security-source records on file. We can compare them and prepare an explanation linked to the evidence.

HttpObjectDecoder.java in Netty before 4.1.44 allows an HTTP header that lacks a colon, which might be interpreted as a separate header with an incorrect syntax, or might be interpreted as an "invalid fold."

IMPACT: Affected Products and Software

Affected Products

The following products are affected by CVE-2019-20444 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.

ID	VENDOR	PRODUCT	ACTION
1	n/a	n/a	View
2	netty	netty	View
3	debian	debian linux	View
4	debian	debian linux	View
5	debian	debian linux	View
6	fedoraproject	fedora	View
7	canonical	ubuntu linux	View
8	redhat	jboss amq clients	View
9	redhat	jboss enterprise application platform	View
10	redhat	jboss enterprise application platform	View
11	redhat	enterprise linux	View
12	redhat	enterprise linux	View
13	redhat	enterprise linux	View

Total affected vendors: 6|Products: 13

RED HAT CSAF/VEX: Product Impact Check

Red Hat has not yet published a CSAF/VEX impact record for this CVE. This does not mean “not affected”.

SCORING: CVSS from Multiple Sources

CVSS Scores

The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.

SCORE	VERSION	SEVERITY	VECTOR	SOURCE
9.1	CVSS V31	CRITICAL	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N	NVD
6.4	CVSS V2	—	AV:N/AC:L/Au:N/C:P/I:P/A:N	NVD

Patch and Remediation Guide

Solution & Remediation Advisory

Patch verified

2 doğrulanmış yama veya düzeltilmiş sürüm kanıtı bulundu.

nvd

NVD tarafından Patch olarak etiketlenmiş referans

Open source

nvd

NVD tarafından Patch olarak etiketlenmiş referans

Open source

Confirm the affected product and version against the source evidence above.

Restrict access to internet-facing services and apply network segmentation.

Apply the official update named in the evidence only to the matching product and version.

Monitor server logs and network endpoints for signs of anomalous execution.

Public exploit and active exploitation status

Verified exploit intelligence

No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.

Weakness Classification and Attack Patterns (CWE & CAPEC)

CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2019-20444 is associated with the following CWEs:

CWE-444: Common Weakness Enumeration Entry CWE-444

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2019-20444 weaknesses.

CAPEC-66: SQL Injection CAPEC-126: Path Traversal CAPEC-28: OS Command Injection

Attack Vector and Accessibility

ExposureAğ üzerinden

PermissionsGerekmiyor

UserGerekmiyor

Official Sources and Advisories

https://github.com/netty/netty/issues/9866vendor-advisory https://github.com/netty/netty/compare/netty-4.1.43.Final...netty-4.1.44.Finalvendor-advisory [druid-commits] 20200131 [GitHub] [druid] ccaominh commented on a change in pull request #9300: Fix / suppress netty CVEs CVE-2019-20445 and CVE-2019-20444vendor-advisory [druid-commits] 20200131 [GitHub] [druid] zachjsh opened a new pull request #9300: Fix / suppress netty CVEs CVE-2019-20445 and CVE-2019-20444vendor-advisory [druid-commits] 20200131 [GitHub] [druid] gianm merged pull request #9300: Fix / suppress netty CVEs CVE-2019-20445 and CVE-2019-20444vendor-advisory [zookeeper-issues] 20200203 [jira] [Created] (ZOOKEEPER-3716) upgrade netty 4.1.42 to address CVE-2019-20444 CVE-2019-20445vendor-advisory [zookeeper-dev] 20200203 [jira] [Created] (ZOOKEEPER-3716) upgrade netty 4.1.42 to address CVE-2019-20444 CVE-2019-20445vendor-advisory [zookeeper-issues] 20200203 [jira] [Assigned] (ZOOKEEPER-3716) upgrade netty 4.1.42 to address CVE-2019-20444 CVE-2019-20445vendor-advisory https://lists.apache.org/thread.html/rce71d33747010d32d31d90f5d737dae26291d96552f513a266c92fbb@%3Cnotifications.zookeeper.apache.org%3Evendor-advisory https://lists.apache.org/thread.html/rfb55f245b08d8a6ec0fb4dc159022227cd22de34c4419c2fbb18802b@%3Cnotifications.zookeeper.apache.org%3Evendor-advisory

CVSS Vector Radar Chart

9.1 / 10

Vulnerability Scoring Details

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone required

User InteractionNone required

Confidentiality (Gizlilik)Low

Integrity (Bütünlük)None

Availability (Erişilebilirlik)None

Yama doğrulandı

2 doğrulanmış yama veya düzeltilmiş sürüm kanıtı bulundu.

Follow the vendor

Weakness Type (CWE & CAPEC)

CWE-444

Similar Vulnerabilities

10.0

CVE-2021-44228 Actively exploited

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