CVE-2023-4501 : faille critique OpenText Visual COBOL, COBOL Server… (CVSS 9.8)

User authentication with username and password credentials is ineffective in OpenText (Micro Focus) Visual COBOL, COBOL Server, Enterprise Developer, and Enterprise Server (including product variants such as Enterprise Test Server), versions 7.0 patch updates 19 and 20, 8.0 patch updates 8 and 9, and 9.0 patch update 1, when LDAP-based authentication is used with certain configurations. When the vulnerability is active, authentication succeeds with any valid username, regardless of whether the password is correct; it may also succeed with an invalid username (and any password). This allows an attacker with access to the product to impersonate any user. Mitigations: The issue is corrected in the upcoming patch update for each affected product. Product overlays and workaround instructions are available through OpenText Support. The vulnerable configurations are believed to be uncommon. Administrators can test for the vulnerability in their installations by attempting to sign on to a Visual COBOL or Enterprise Server component such as ESCWA using a valid username and incorrect password.

Sévérité

Critique (CVSS 9.8)

Vecteur CVSS

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitation active

Non signalée par la CISA

Publication

12 sept. 2023

Dernière mise à jour

4 août 2026

• OpenText Visual COBOL, COBOL Server, Enterprise Developer, Enterprise Server

Install 7.0 Patch Update 21, 8.0 Patch Update 10, or 9.0 Patch Update 2, or later, when available. Hotfix overlays are available now for common platforms and can be produced for other platforms; contact OpenText Support to request a hotfix overlay.

• Fiche CVE-2023-4501 sur le NVD (NIST)
• portal.microfocus.com/s/article/KM000021287