Arbitrary file inclusion in Red Hat Undertow AJP connector



Published: 2020-03-13
Risk High
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-1745
CWE-ID CWE-22
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
Subscribe 		Undertow
Server applications / Web servers

Vendor Red Hat Inc.

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) Path traversal

EUVDB-ID: #VU26052

Risk: High

CVSSv3.1: 7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:F/RL:O/RC:C]

CVE-ID: CVE-2020-1745

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform directory traversal attacks.

The vulnerability exists due to input validation error in AJP connector. A remote attacker can send a specially crafted HTTP request to port 8009/tcp and read arbitrary files on the system.

Note, this vulnerability can lead to system compromise.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Undertow: 2.0.0 - 2.0.29

External links

http://access.redhat.com/errata/RHSA-2020:0812
http://access.redhat.com/security/cve/CVE-2020-1745


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, a fully functional exploit for this vulnerability is available.



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