Multiple vulnerabilities in Apache Traffic Server

Published: 2022-05-31

Risk	Medium
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2021-44759 CVE-2021-44040
CWE-ID	CWE-287 CWE-20
Exploitation vector	Network
Public exploit	N/A
Vulnerable software	Apache Traffic Server Server applications / Web servers
Vendor	Apache Foundation

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Improper Authentication

EUVDB-ID: #VU63859

Risk: Medium

CVSSv4.0: 6.9 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-44759

CWE-ID: CWE-287 - Improper Authentication

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to an error in TLS origin validation. A remote attacker can perform MitM attack and bypass authentication process.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Apache Traffic Server: 8.0.0 - 9.1.1

CPE2.3

External links

https://lists.apache.org/thread/zblwzcfs9ryhwjr89wz4osw55pxm6dx6

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.

2) Input validation error

EUVDB-ID: #VU63858