#VU12919 Improper input validation in Spring Security OAuth - CVE-2018-1260

Vulnerability identifier: #VU12919

Vulnerability risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2018-1260

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Spring Security OAuth
Server applications / Frameworks for developing and running applications

Vendor: Pivotal

Description
The vulnerability allows a remote unauthenticated attacker to execute arbitrary code on the target system.

The weakness exists due to improper validation of user-supplied input. A remote attacker can send a specially crafted authorization request to the target authorization endpoint and execute arbitrary code when the resource owner is forwarded to the approval endpoint.

Successful exploitation of the vulnerability may result in system compromise.

Mitigation
Update to versions 2.3.3, 2.2.2, 2.1.2 or 2.0.15.

Vulnerable software versions

Spring Security OAuth: 2.0 - 2.3.2

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External links
https://pivotal.io/security/cve-2018-1260

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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.