CVE-2023-49567

Insecure Trust of certificates using collision hash functions in Bitdefender Total Security HTTPS Scanning (VA-11239)

Published Oct 18, 2024 CVSS 4.0 · 8.6 High EPSS < 1% KEV · Not listed
Description
A vulnerability has been identified in the Bitdefender Total Security HTTPS scanning functionality where the product incorrectly checks the site's certificate, which allows an attacker to make MITM SSL connections to an arbitrary site. The product trusts certificates that are issued using the MD5 and SHA1 collision hash functions which allow attackers to create rogue certificates that appear legitimate.

Remediation

Vendor Solution

An automatic update to product version 27.0.25.115 fixes the issue.

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2023-53522 A vulnerability has been identified in the Bitdefender Total Security HTTPS scanning functionality where the product incorrectly checks the site's certificate, which allows an attacker to make MITM SSL connections to an arbitrary site. The product trusts certificates that are issued using the MD5 and SHA1 collision hash functions which allow attackers to create rogue certificates that appear legitimate.
History
Type Values Removed Values Added
Metrics epss

{'score': 0.00046}

epss

{'score': 0.00048}

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 6.8, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N'}

Type Values Removed Values Added
First Time appeared Bitdefender
Bitdefender total Security
CPEs cpe:2.3:a:bitdefender:total_security:*:*:*:*:*:*:*:*
Vendors & Products Bitdefender
Bitdefender total Security
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description A vulnerability has been identified in the Bitdefender Total Security HTTPS scanning functionality where the product incorrectly checks the site's certificate, which allows an attacker to make MITM SSL connections to an arbitrary site. The product trusts certificates that are issued using the MD5 and SHA1 collision hash functions which allow attackers to create rogue certificates that appear legitimate.
Title Insecure Trust of certificates using collision hash functions in Bitdefender Total Security HTTPS Scanning (VA-11239)
Weaknesses CWE-295
References
Metrics cvssV4_0

{'score': 8.6, 'vector': 'CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Bitdefender
Published
Updated
Oct 18, 2024, 3:25 PM
Reserved
Nov 27, 2023, 2:21 PM
Status
Analyzed
Published
Oct 18, 2024, 8:15 AM
Modified
Jun 17, 2026, 6:36 AM