Auth bypass in Microsoft Windows 7
CVE-2023-34367
Windows 7 is vulnerable to a full blind TCP/IP hijacking attack. The vulnerability exists in Windows 7 (any Windows until Windows 8) and in any implementation of TCP/IP, which is vulnerable to the Idle scan attack (including many IoT devices). NOTE: The vendor considers this a low severity issue.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.012 (67.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 68th percentile — 67.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000
Affected products
Weakness classification (CWE)
References
- blog.pi3.com.pl/ (Technical Description, Exploit, Third Party Advisory)
- portswigger.net/daily-swig/blind-tcp-ip-hijacking-is-resurrected-for-windows-7 (Technical Description, Exploit)
- pwnies.com/windows-7-blind-tcp-ip-hijacking/ (Third Party Advisory)
Frequently asked questions
- What is CVE-2023-34367?
- CVE-2023-34367 is a medium-severity vulnerability in Microsoft Windows 7, classified under Improper Authentication. CVSS score: 6.5/10. Published 2023-06-14.
- How severe is CVE-2023-34367?
- Medium severity. CVSS v3 base score is 6.5 out of 10.