#VU66504 Improper Authorization in Apache Traffic Server - CVE-2021-37150

Vulnerability identifier: #VU66504

Vulnerability risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-37150

CWE-ID: CWE-285

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Apache Traffic Server
Server applications / Web servers

Vendor: Apache Foundation

Description

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to an error when handling different protocols and schemes. A remote attacker can send a specially crafted HTTP request, bypass implemented security restrictions and gain access unauthorized access to protected resources.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Apache Traffic Server: 8.0.0 - 8.0.8, 8.1.0 - 8.1.4, 9.0.0 - 9.0.2, 9.1.0 - 9.1.2

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External links
https://lists.apache.org/thread/rc64lwbdgrkv674koc3zl1sljr9vwg21

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Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.