Vulnerability identifier: #VU22836

Vulnerability risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-12422

CWE-ID: CWE-310

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Apache Shiro
Universal components / Libraries / Software for developers

Vendor: Apache Foundation

Description

The vulnerability allows a remote attacker to perform a padding attack.

The vulnerability exists due to using the default "remember me" configuration. A remote attacker can perform a padding attack on cookies and gain sensitive information on the target system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Apache Shiro: 1.0.0 - 1.4.1

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External links
http://lists.apache.org/thread.html/c9db14cfebfb8e74205884ed2bf2e2b30790ce24b7dde9191c82572c@%3Cdev.shiro.apache.org%3E

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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.