CVE-2023-30312
- State
- Published
- Severity
- 7.3 High
- Published
- May 28, 2024
- Updated
- Nov 7, 2024
- Reserved
- Apr 7, 2023
Description
An issue discovered in OpenWrt 18.06, 19.07, 21.02, 22.03, and beyond allows off-path attackers to hijack TCP sessions, which could lead to a denial of service, impersonating the client to the server (e.g., for access to files over FTP), and impersonating the server to the client (e.g., to deliver false information from a finance website). This occurs because nf_conntrack_tcp_no_window_check is true by default.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 7.3 High | CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H | CISA-ADP |
Weaknesses
- CWE-203 Observable Discrepancy
Affected Products
| Product | Versions |
|---|---|
n/an/a |
|
References
- https://openwrt.org/docs/guide-developer/security
- https://www.ndss-symposium.org/ndss-paper/exploiting-sequence-number-leakage-tcp-hijacking-in-nat-enabled-wi-fi-networks/
- https://blog.apnic.net/2024/06/18/off-path-tcp-hijacking-in-nat-enabled-wi-fi-networks/
- https://news.ycombinator.com/item?id=40723150
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