Ubuntu update for shiro



Risk High
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2016-4437
CWE-ID CWE-284
Exploitation vector Network
Public exploit Vulnerability #1 is being exploited in the wild.
Vulnerable software
 Ubuntu
Operating systems & Components / Operating system

libshiro-java (Ubuntu package)
Operating systems & Components / Operating system package or component

Vendor Canonical Ltd.

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) Improper access control

EUVDB-ID: #VU67206

Risk: High

CVSSv4.0: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:A/U:Amber]

CVE-ID: CVE-2016-4437

CWE-ID: CWE-284 - Improper Access Control

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to execute arbitrary code or bypass intended access restrictions.

The vulnerability exists due to improper access restrictions when a cipher key is not been configured for the "remember me" feature. A remote attacker can bypass implemented security restrictions and gain unauthorized access to the application.

Mitigation

Update the affected package shiro to the latest version.

Vulnerable software versions

Ubuntu: 16.04

libshiro-java (Ubuntu package): before Ubuntu Pro

CPE2.3 External links

https://ubuntu.com/security/notices/USN-7139-1


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?

Yes. This vulnerability is being exploited in the wild.



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