Amazon Linux AMI update for tomcat9

1) Open redirect

EUVDB-ID: #VU80089

Risk: Medium

CVSSv4.0: 2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/U:Green]

CVE-ID: CVE-2023-41080

CWE-ID: CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to redirect victims to arbitrary URL.

The vulnerability exists due to improper sanitization of user-supplied data, if the ROOT (default) web application is configured to use FORM authentication. A remote attacker can create a link that leads to a trusted website, however, when clicked, redirects the victim to arbitrary domain.

Successful exploitation of this vulnerability may allow a remote attacker to perform a phishing attack and steal potentially sensitive information.

Mitigation

Update the affected packages:

noarch:
    tomcat9-el-3.0-api-9.0.71-1.amzn2023.0.5.noarch
    tomcat9-lib-9.0.71-1.amzn2023.0.5.noarch
    tomcat9-admin-webapps-9.0.71-1.amzn2023.0.5.noarch
    tomcat9-servlet-4.0-api-9.0.71-1.amzn2023.0.5.noarch
    tomcat9-jsp-2.3-api-9.0.71-1.amzn2023.0.5.noarch
    tomcat9-webapps-9.0.71-1.amzn2023.0.5.noarch
    tomcat9-9.0.71-1.amzn2023.0.5.noarch
    tomcat9-docs-webapp-9.0.71-1.amzn2023.0.5.noarch

src:
    tomcat9-9.0.71-1.amzn2023.0.5.src

Vulnerable software versions

Amazon Linux AMI: All versions

tomcat9: before 9.0.71-1

CPE2.3

• cpe:2.3:o:amazon_web_services:amazon_linux_ami:*:*:*:*:*:*:*:*
• cpe:2.3:o:amazon_web_services:tomcat9:*:*:*:*:*:amazon_linux_ami:*:*

External links

https://alas.aws.amazon.com/AL2023/ALAS-2023-365.html

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. However, proof of concept for this vulnerability is available.