Medium severity · published Oct 18, 2024
CVE-2023-49567
Insecure Trust of certificates using collision hash functions in Bitdefender Total Security HTTPS Scanning (VA-11239)
6.8
CVSS
0.2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
Attack vector
Network
Complexity
High
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 9% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
TS
Total Security · Bitdefender
before 27.0.25.115 · source: vendor, NVD, CISA
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-49567
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-49567
Vendor Advisory
https://www.bitdefender.com/support/security-advisories/insecure-trust-of-certificates-using-collision-hash-functions-in-bitdefender-total-security-https-scanning-va-11239/
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