Improper Authentication in TIBCO EBX

1) Improper Authentication

EUVDB-ID: #VU57347

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-2021-35498

CWE-ID: CWE-287 - Improper Authentication

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to insecure login mechanism in the TIBCO EBX Web Server component. A remote attacker can enter a password other than the legitimate password and it will be accepted as valid.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

TIBCO EBX: 5.8.123 - 6.0.1

TIBCO Product and Service Catalog powered by TIBCO EBX: 1.0.0

CPE2.3

• cpe:2.3:a:tibco:tibco_ebx:*:*:*:*:*:*:*:*
• cpe:2.3:a:tibco:tibco_ebx:5.8.123:*:*:*:*:*:*:*
• cpe:2.3:a:tibco:tibco_ebx:5.9.3:*:*:*:*:*:*:*
• cpe:2.3:a:tibco:tibco_product_and_service_catalog_powered_by_tibco_ebx:1.0.0:*:*:*:*:*:*:*

External links

https://www.tibco.com/services/support/advisories
https://www.tibco.com/support/advisories/2021/10/tibco-security-advisory-october-13-2021-tibco-ebx-2021-35498

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.