HOMEVULNERABILITIESCVE-2020-1745
CRITICAL

CVE-2020-1745

CWE-285Published: April 28, 2020· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official Description

A file inclusion vulnerability was found in the AJP connector enabled with a default AJP configuration port of 8009 in Undertow version 2.0.29.Final and before and was fixed in 2.0.30.Final. A remote, unauthenticated attacker could exploit this vulnerability to read web application files from a vulnerable server. In instances where the vulnerable server allows file uploads, an attacker could upload malicious JavaServer Pages (JSP) code within a variety of file types and trigger this vulnerability to gain remote code execution.

NVD Source

Technical Analysis

CVE-2020-1745 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

Red Hat1 product(s)
undertow
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1745
ADVISORYhttps://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1745

All References (10)

→
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1745Issue Tracking · Third Party Advisory
→
https://meterpreter.org/cve-2020-1938-apache-tomcat-ajp-connector-remote-code-execution-vulnerability-alert/Not Applicable
→
https://security.netapp.com/advisory/ntap-20240216-0011/
→
https://www.cnvd.org.cn/webinfo/show/5415Not Applicable
→
https://www.tenable.com/blog/cve-2020-1938-ghostcat-apache-tomcat-ajp-file-readinclusion-vulnerability-cnvd-2020-10487Not Applicable
→
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1745Issue Tracking · Third Party Advisory
→
https://meterpreter.org/cve-2020-1938-apache-tomcat-ajp-connector-remote-code-execution-vulnerability-alert/Not Applicable
→
https://security.netapp.com/advisory/ntap-20240216-0011/
→
https://www.cnvd.org.cn/webinfo/show/5415Not Applicable
→
https://www.tenable.com/blog/cve-2020-1938-ghostcat-apache-tomcat-ajp-file-readinclusion-vulnerability-cnvd-2020-10487Not Applicable

Quick Facts

CVE IDCVE-2020-1745
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-285
CISA KEVNo
Affected1 vendor(s)
PublishedApr 28, 2020

Related CVEs (CWE-285)

CVE-2021-37705
10.0
CVE-2026-57983
10.0
CVE-2020-5206
10.0
CVE-2022-2595
10.0
CVE-2021-31384
10.0
CVE-2020-3374
9.9

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2020-1745 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.
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