#VU79296 Insufficient verification of data authenticity in python-certifi - CVE-2023-37920

Vulnerability identifier: #VU79296

Vulnerability risk: Medium

CVSSv4.0: 6.9 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-37920

CWE-ID: CWE-345

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
python-certifi
Other software / Other software solutions

Vendor: Certifi

Description

The vulnerability allows a remote attacker to perform MitM attack.

The vulnerability exist due to software recognizes "e-Tugra" root certificates, which were subject to an investigation prompted by reporting of security issues in their systems. An attacker with ability to generate certificates signed with the  compromised "e-Tugra" root certificate can perform MitM attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

python-certifi: 1.0.0 - 2023.05.07

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External links
https://groups.google.com/a/mozilla.org/g/dev-security-policy/c/C-HrP1SEq1A
https://github.com/certifi/python-certifi/security/advisories/GHSA-xqr8-7jwr-rhp7
https://github.com/certifi/python-certifi/commit/8fb96ed81f71e7097ed11bc4d9b19afd7ea5c909

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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.