PT-2018-14521 · Microsoft+1 · Skype For Business+2

Published 2018-10-24 · Updated 2018-12-07 · CVE-2018-18567

Positive Technologies (AI Summary)

CVSS v3.1

5.9

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions AudioCodes 440HD and 450HD devices version 3.1.2.89 and earlier

Description The issue allows man-in-the-middle attackers to obtain sensitive credential information by leveraging the failure to validate X.509 certificates when used with an on-premise installation with Skype for Business.

Recommendations For AudioCodes 440HD and 450HD devices version 3.1.2.89 and earlier, consider updating to a version that properly validates X.509 certificates to prevent man-in-the-middle attacks. As a temporary workaround, restrict access to sensitive credential information until a patch is available.

Exploit

Fix

Improper Certificate Validation

Weakness Enumeration

CWE-295

Related Identifiers

CVE-2018-18567

Affected Products

Audiocodes 440Hd

Audiocodes 450Hd

Skype For Business

References · 5

• 🔥 https://seclists.org/bugtraq/2018/Oct/32 · Exploit
• 🔥 https://syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2018-026.txt · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2018-18567 · Security Note
• https://osv.dev/vulnerability/CVE-2018-18567 · Vendor Advisory
• http://securitytracker.com/id/1041956 · Note