Denial of service in IBM Sterling B2B Integrator

1) Improper input validation

EUVDB-ID: #VU52578

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-18640

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to improper input validation within the Application Server (SnakeYAML) component in PeopleSoft Enterprise PT PeopleTools. A remote non-authenticated attacker can exploit this vulnerability to perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

IBM Sterling B2B Integrator: 6.0.0.0 - 6.1.0.4

External links

http://www.ibm.com/blogs/psirt/security-bulletin-ibm-sterling-b2b-integrator-is-vulnerable-to-denial-of-service-due-to-snakeyaml-cve-2017-18640/
http://www.ibm.com/support/pages/node/6611241

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.